Ten Steps to Design a Counseling App to Reduce the Psychosocial Impact of Human Papillomavirus Testing on the Basis of a User-Centered Design Approach in a Low- and Middle-Income Setting

PURPOSE This study describes the 10 steps followed to produce the information architecture of a user-centered design (UCD) counseling mobile application, the first phase to develop an app. The app aims to reduce the psychosocial impact of the human papillomavirus test result and improve women's knowledge of human papilloma virus and cervical cancer. METHODS We used a UCD approach to produce the information architecture of the app (ie, how to organize contents into features). We analyzed field notes, meeting agendas, and documentation produced during each stage of the design process. We described the goals, methods, and outcomes of each step. We also discussed the critical challenges and the strategies to address them. RESULTS The steps are (1) knowledge, attitudes, and beliefs mapping: reanalysis of team's research findings from prior studies; (2) environmental scanning of apps available on the market; (3) stakeholders' point of view: The International Advisory Committee; (4) potential user's profile: building archetypes through the Persona method; (5) women's interviews: user's preferences and experiences; (6) effective features: scoping review to select app's features that address psychosocial impact; (7) the user journey: ideal interaction with the gynecological service and the counseling app; (8) women's focus groups: using Personas and Scenarios to discuss app's mock-up; (9) women's design sessions: prototype test and card-sorting techniques; and (10) team's design session: translating results into visual objects and features. CONCLUSION We provide here detailed descriptions of the UCD process of an app for human papillomavirus–tested women for those venturing into the area of mHealth strategies work. Our experience can be used as a guide for future mHealth app development for a low- and middle-income setting.


INTRODUCTION
Cervical cancer (CC) mortality is a major public health issue. In Argentina, every year, 4,500 new cases are diagnosed, and 2,300 women die from this disease annually. 1 High CC mortality is related to problems in the cancer control continuum, including lack of follow-up, diagnosis, and treatment. 2,3 It is expected that human papillomavirus (HPV) vaccine programs and HPV testing will lead to the elimination of CC over the next decades. 4 As HPV testing detects a sexually transmitted infection with oncogenic types of HPV, HPV positivity can have connotations of promiscuity and stigmatization and can result in shame, worries about future sexual relationships, and questions about the women's or her partner's Although face-to-face counseling would help women overcome the psychosocial impact, its implementation presents many difficulties such as lack of trained providers, 12 lack of sufficient time and privacy during consultations, lack of awareness about the importance of counseling, and embarrassment when raising issues concerning sexual behaviors. 13 As a result, HPV-tested women often receive insufficient and/or confusing information about the use and benefits of HPV testing and how to follow-up. 14 We need innovative and scalable solutions to enhance provision of information, counseling, and support to HPVtested women that will allow a more efficient use of human resources and time and improve women's autonomy in accessing patient-centered information. mHealth interventions can enhance the relationship between patients and health providers [15][16][17] ; in particular, the use of mobile applications (apps) to communicate with patients and provide support has been shown to improve health outcomes for different health conditions. [18][19][20] Apps can be used even after the consultation ended and require less staff. 17,18 In cancer care, apps offer the possibility of providing accessible information and education at minimal costs throughout the cancer care continuum. 20 Nonetheless, the literature has shown that most downloaded apps were used only once because users did not immediately engage with them, undermining the intervention's potential effectiveness. 21,22 Additionally, people's intention to use apps for self-care purposes is influenced by perceived usefulness and ease of use, performance expectancy, social influence, self-efficacy, and potential lack of privacy. Evidence shows that involving end-users in the app design may enhance its perceived utility and usage. 23,24 In addition, the app proposed features should be integrated within a theorydriven health intervention oriented to behavior change. 25 We propose an app for HPV-tested women designed with a user-centered approach, whose included features will be integrated within a theory-driven health intervention. The app will provide information and support to HPV-tested women from HPV testing and results delivery to treatment if needed. The app would constitute a low-cost, easy-to-use tool that would change how HPV-tested women access evidence-based information and counseling.
The first phase of an app design is producing the information architecture (IA) which can be summarized as the organization of contents and objects (eg, screens and features), the clear descriptions of their functions and interactions, and the provision of ways for the user to get to them (eg, understandable labels and navigation flows). 26 The IA is a critical dimension of an app design as it will clearly state its format, presentation, and functions which are key elements for intuitive access to app content and task completion. 27 This study describes the 10 steps followed to produce the IA of a user-centered design (UCD) counseling app for HPV-tested women. The description dwells on the contribution of each step to the design, the techniques used, and the findings obtained. The study results are key for the implementation of a mHealth-based intervention aimed at reducing the psychosocial impact of HPV testing and increasing women adherence to follow-up/treatment, with high potential contribution to the achievement of WHO targets to eliminate CC. 4

Framework
We relied on the design thinking framework, which is a user-centered framework which provides a guide to translate the intervention aims into technological components and specifications for digital behavioral change interventions. 28 In addition, the process of designing the IA incorporated a series of different methods and participatory techniques which were iteratively applied 23 through two major phases: identifying problems (through researching and defining) and solving problems (by creating and testing). Figure 1 shows how the 10 steps described in this study are integrated into the two phases of the IA design.
Formative research was a main activity of the IA design process (extensively described elsewhere). 29 We conducted online individual interviews (step 4), focus groups (FGs) (step 8), and design sessions (DSs) (step 9) with HPV-positive women age 30 years or older aimed at understanding their perceptions about the app and to investigating their preferences regarding the app design, content, and framing. All other steps shown in Figure 1 were used as additional inputs to the app's iterative design.

Formative Research Setting
The study took place in Ituzaingó, a district located in the Metropolitan Area of Buenos Aires. In 2015, HPV testing was established as primary screening for women age 30 years or older attending the public health system, mainly the population not covered by the social security sector (such as workers in the informal economy and their families). The public health sector comprises a network of primary health care (PHC) units linked with the secondary level of care that provide care free of cost, including screening, diagnosis, and treatment if needed.
According to Argentinean recommendations, 30 HPVpositive women are triaged with cytology. Women with abnormal Paps are referred to colposcopy and biopsy if needed. Women with histologically confirmed CIN2 or worse are referred for treatment. HPV-negative women are recommended rescreening in 5 years. HPV-positive women with normal cytology are recommended rescreening in 18 months.

Participants of Formative Research
Eligible women were literate, age 30 years or older, residing in Ituzaingó, and mobile phone users. We used a purposive sampling procedure among women HPV tested in the past 12 months at Ituzaingó public health institutions. We conducted fieldwork during the COVID-19 pandemic (November-December 2020 and August 2021). Despite this unprecedented context, we recruited 29 women for individual interviews, of whom 19 (66%) participated in the four FGs and 11 took part in the two DSs.
The formative research study's protocol was approved by the Diagnóstico por Imagen Morón private clinic's ethics committee. Women provided verbal informed consent, which was audio recorded for documentation. Anonymity of participants was guaranteed.

Data Collection and Analysis Used Through the 10 Steps of the App Design Process
We analyzed results from formative research, field notes, documentation produced during each step (such as memos and visual products), and publications of partial results.
For each step, we described its goals, techniques, and outcomes. Thematic analysis 31 was used to analyze data Solve Create and test

Identify Research and define
Step 1 KAB's* mapping Step 9 Women's design sessions Step 4

Women's interviews
Step 2

Environmental scanning of apps
Step 3 Stakeholders' point of view (first meeting) Step 6 Scoping review to select app's features Step 8 Women's focus groups Step 10 Team's design sessions Step 5 Potential user's profiles Step 7 User journey Step 3

Stakeholders' point of view (second meeting)
Formative research (women's direct participation) FIG 1. Design-thinking phases and the 10 steps to produce the app's information architecture. *KABs mapping toward HPV testing and follow-up procedures. HPV, human papillomavirus; KABs, knowledge, attitudes, and beliefs. described in steps 1, 5, and 8 (Fig 1), relying on the Health Belief Model and the Integrative Behavioral Model frameworks, which has been extensively described elsewhere. 29 The analysis allowed us to organize data into themes, detect emerging topics, and get richer data.

RESULTS
Step 1-KABs Mapping Sep 1 was aimed at systematizing patterns in women's knowledge/attitudes/beliefs (KABs mapping) toward HPV testing and follow-up. For that, we reanalyzed qualitative data obtained in previous studies by our research team, which allowed us to make reinterpretations considering new research questions. 32 We examined three different corpora of data: first, from interviews carried out in 2012 among women age 18-55 years in the province of Buenos Aires who had abnormal Pap smear results (n = 30) 33,34 ; second, from interviews (n = 38) conducted among HPV-tested women in 2013 in the province of Jujuy 7,14 ; and finally, data from six FGs carried out in Jujuy with women age 30 years or older (n = 48) who had performed HPV self-collection in 2016-2017. 35 On the basis of Health Belief Model and Integrative Behavioral Model, we classified data into the following themes: knowledge, attitudes, beliefs, perceived barriers, perceived self-efficacy, and cues to adhere to follow-up. Then, we distinguished emergent subthemes and selected the quotes that better described each theme ( Table 1). The KABs mapping was a main input for step 5 (end-users' profiles), step 7 (user journey), and steps 4 and 8 (interview and FG guides, respectively).

Step 2-Environmental Scanning of Apps
We conducted an environmental scan to explore and characterize the current landscape of apps related to HPV and CC. Between June 1, 2020, and June 14, 2020, we searched both the Apple and Google app stores using the key terms HPV and CC both in English and Spanish. Search update was done in December 2021. Apps oriented at health professionals and those focused on general aspects of gynecology and/or sexuality were excluded.
We summarized the following variables: app name; developer, owner, and supporting institution; target audience; main features; availability (free or paid); year of release; main topic repository category; languages; and operating systems (iOS, android, or both).
We found 19 apps published between 2014 and 2021. All of them were in English while some were in other language (Turkish, Spanish, Italian, or Portuguese), with English as second option. Nearly half of the apps fell into the health/ fitness category, followed by medical. Most apps were free and aimed at everyone. Only apps related to HPV vaccination were targeted to a specific audience (mostly parents and very few to teens). The most frequent topics were information about both HPV vaccination and CC prevention. The app main features were to provide information through texts or infographics, remind appointments, and visualize user progress (eg, remaining vaccination doses). All apps were available in both operating systems.
Step 3-Stakeholders' Point of View: The International Advisory Committee We established an Advisory Committee of national and international stakeholders, including: • Key comments of the Advisory Committee were the need to include in the app's implementation a training plan for PHC providers and the importance of considering potential confidentiality issues and data protection regulations not only in Argentina but also in other countries. They also emphasized the importance of the app as a tool to enhance women-health professionals' relationships and to provide clear and evidence-based information to women. Additionally, they highlighted the app as an opportunity to contribute to evidence dissemination not only among women but also among health professionals.

Step 4-Women's Interviews
Twenty-nine individual online semistructured interviews were conducted among HPV-tested women (see Participants). We collected information about use of technology (use of mobile phones, Internet; health apps, preferences regarding apps' features) and women's personal experiences during HPV testing and result delivery.
The results showed that women used their mobile phones daily. Most mentioned the use of apps to record their menstrual cycle, and some used apps to improve their physical activity. Although most women preferred to get firsthand information from doctors, almost all googled health information. Most women felt that they lacked time during the medical consultation to ask questions about HPV Barriers to meet information needed "I didn't ask anything. Because I didn't dare, they were all male physicians." 14 "There are things I haven't asked that I remember later.
[…] The thing is, that at this moment, I can't-I get blocked. It must be fear. Then I remember." 14 Beliefs on susceptibility of having HPV and CC All women are at risk "As a woman, we are prone to get infected." 35 Sexually active women "Who has sexual relations?" 35 Who has doubts about partner faithfulness: "He infected me." 35 Personal/family history of gynecological issues Fear of infertility "I was afraid of not having more children. They would take everything away from me, and I don't want to lose anything." 35 (Continued on following page) positivity and to clarify their doubts. Many felt overwhelmed by the HPV test results and were not able to understand the information provided by the physician. Others did not get much information from the provider. We used these findings to fit the Persona and their scenarios (step 5).
Step 5-Potential User's Profiles Five archetypical profiles of HPV-tested women who might be potential app end-users were identified. We used the Persona method, 36 which is a description of fictitious users on the basis of the categorization of relevant information about real people to build typologies. It was based on the KABs mapping data (step 1) and results of the individual interviews with HPV-tested women (step 4).
We built five Personas on the basis of the following dimensions: sociodemographics, personal interests, partnership situation, common attitudes and behaviors related to health, information needs on HPV testing and CC prevention, structural factors that might deter access to health care (child-caring, geographical distance, etc), 33 previous experiences that could shape women-provider interaction, 35 use of technology, and likelihood to adhere to follow-up. 14 We used Personas as potential app users main characters of different scenarios (Fig 2), presented as short stories that described a context where someone might use the app. 26,36 App components were created as a tool to respond to these Persona/scenario needs (steps 7, 8, 9, and 10). 36 Step 6-Scoping Review to Select App's Features We conducted a scoping review to identifying app-based interventions evaluated in randomized controlled trials with demonstrated efficacy in changing the psychosocial impact of health problems. This review allowed us to map apps with demonstrated effectiveness in influencing intention toward behavior change. We used this list to discuss the app's design during FGs (step 8).
We searched in PubMed, Cochrane, Scopus, SciELO, Embase, British Nursing Index, and PsycInfo databases, where 258 articles were initially found. After eliminating duplicates and applying inclusion criteria, 59 articles were selected and systematized using the PICO format (population, intervention, control group, and outcomes).
We identified 21 interventions using apps reported as effective for KABs and/or behavior change. They offered the following features: sliding cards with texts, audios, videos, or infographics to provide information; chat rooms/forums with health counselors and/or other patients; learning video games (referred to as serious games); links to websites; texts listing things that please the user (eg, photos of loved She is afraid her condition is the result of her husband's infidelity. She does not like having a male physician. She does not want to get medical care in the local health care unit because they are gossips.
She is in a stable relationship. She is notified about an HPV+ result, but she is not sure whether she has to do a follow-up or not. She does not perceive the severity of the result. After the medical consultation, she left with many doubts and was embarrassed to ask. Talking to her neighbors, she learned HPV is sexually transmitted. When she talked to her partner, they argued several times. She is worried about a potential infidelity by her husband and other people's opinions. She only talks about this issue with a friend who also had it. She is worried this might affect her fertility.

GOALS
She has to commute for an hour early in the morning to get an appointment. She does not trust the health care system: "They make you sick." She does not like the care offered by the health care unit in her neighborhood.
She was a domestic employee, now she is working as a caregiver by the hour. She had a checkup because her daughter-in-law insisted. When she received the result, the physician told her they would need to conduct another test because that one was not ok. She does not understand what a complementary test is; she thinks that they did not do the test correctly. She does not perceive the severity of the result. She has a negative perception of and distrusts interventions and treatments in health institutions. She does not know she has HPV and the relationship between this and CC. ones); recording activities or setting tasks with a goal of improvement; reminders; a function to store health data; and a function to provide information on nearby health centers and the name of the attending physician.

OBSTACLES
Step 7-The User Journey We created a roadmap visualizing the ideal user-gynecological service app interaction. We used a technique called User's Journey Map 26 to display all potential contact points with health providers during HPV testing, results delivery, and follow-up from the end-user point of view. We identified when the app should be offered and used by women.
We produced scripts of an ideal woman gynecological service interaction on the basis of the KABs mapping (step 1) and Personas (step 5). We debated how counseling by a health provider might be translated into the app's features. As a result, we displayed the ideal user journey of a fictitious woman while using the app (Fig 3).

Step 8-Women's Focus Groups
Nineteen HPV-positive women participated of the online FGs. Women's age was the segmentation criterion: two FGs included women age 30-49 years and two included women age 50 years or older.
FGs included two participatory activities. First, participants were asked to comment on two different Personas and scenarios that presented two different HPV results delivery situations. 26,36 On the basis of the steps 4, 5, and 7, scenarios depicted an encounter between a woman and the health care system for HPV testing, cytology triage, and results delivery. We asked participants the following questions: After receiving the results, how did this woman feel? What did she do next? Did/would she use an app to cope? If yes, what characteristics should the app have to be useful? A second activity, described elsewhere, 29 was aimed at understanding women's views on an app's model called mock-up. The mock-up consisted of seven screens that included labels of the content, menus of options, and draft illustrations. This allowed us to show women understandable visual triggers to debate the concepts presented on each screen. We asked them about their preferences for app features and screen organization.
The results of FGs indicated that women accepted the app as a tool to obtain information and reduce fears related to HPV-positive results. For them, the app should primarily provide information about HPV and CC, over other functions such as coping strategies that we suggested. The women stressed the importance of the app conveying an empathetic communication style ("as if we were being listened to by an empathetic counselor, with a warm attitude"). They suggested that the app could facilitate connections between women going through a similar process. Finally, women asked for the inclusion of a reminder function of medical appointments and to pick up results.
Step 9-Women's Design Sessions A DS has a FG format where participants provide feedback regarding app prototypes, contribute to design ideas, and explain their preferences regarding app functions and tasks. 23 We conducted two DS with women who had participated in the interviews and FGs (steps 4 and 8): one DS included women age 30-49 years, and the other included women age 50 years or older.
First, we used a card-sorting technique to understand how participants organize and label concepts 37 and classified topics that fell under information needs. On the basis of women's common doubts or concerns identified in steps 1, 7, and 8, we built cards with different questions about HPV. We showed participants these cards and a list of categories that simulated the labels of the application's menus. Then, women were asked to match each card with a label, ie, with which of the labels they associated the content of the card. Women shared and justified their choices and criteria used in their classification. Finally, the session moderator summarized the group's agreements. The results were used to select the final labels included in the IA. A main finding of this activity was that, to obtain information and resolve doubts, women preferred to use the questions and answers and tests and controls categories.
Second, we used a low-fidelity clickable prototype using a PowerPoint presentation to assess two critical elements: (1) comprehension of the Agenda section (functionality, navigation, and wording) and (2) women acceptability to use a log in username and password to protect confidentiality. We presented an interactive prototype, and we invited women to simulate the setting of a reminder to pick up the HPV test result. When the required fields were completed, the prototype app provided them with information about the next steps. During the process, we used open-ended questions to assess comprehension and preference elicitation.
The results from the prototype assessment showed that women accepted the Agenda features to obtain synchronized information. They also considered that the sequence of the proposed screens was easy to understand and navigate. Additionally, they highlighted the importance of including a feature to store data and/or files related to their gynecological consultations and HPV test results. Some suggested displaying a graph visualizing their progress in treatment (ie, woman's progress along the continuum of care).
Regarding confidentiality issues, women described it as annoying to use a username and password to log in and retrieve clinical information. Nevertheless, they agreed on the importance of preserving their data and acknowledged that they were familiar with this type of log in and passwords functions.
Step 10-Team's Design Sessions The team DS was aimed at translating results of previous steps into a set of app's screens with detailed features (Fig 4). The project team included five sociologists, two psychologists, a user-experience/graphical design expert, a philosopher, and a gynecologist who works in PHC. We used the Crazy 8 38 technique, an exercise suitable for multidisciplinary groups where participants have 8 minutes to sketch the app screens and provide innovative solutions.
The main results of this activity were as follows: The app's main objective should be to provide information on HPV and CC. This objective turned out to be the organizing axis of the design, and it became a prominent element in the different screens. A visual hierarchy of the informational contents was developed by the team. Thus, the main menu (Home Menu) was designed to contain a clickable box with highlights from the HPV Information section that is visually bigger than other buttons.
Women's demand to be heard by an empathic counselor was translated into the app's different design components. Thus, illustrations and wording of the screens emulated an empathic dialogue of a fictitious health professional with the user. We also included a feature where women could type their doubts using keywords to get specific information (feature Search by term and Stepby-step agenda).
Women's demand to connect with other HPV-positive women was translated into a section called Stories and testimonies where they would be able to watch stories on the basis of real stories, narrated in the first person and a feature to share the content of the app with other women.

Final Information Architecture
The final IA (Fig 5) presents the screen sequence and content organized into three sections: Information, Step-bystep Agenda, and Stories and testimonies. The information section will provide medical/scientific information about HPV and CC prevention, explained in clear and accessible language. It is composed of two subcategories: Questions and Answers; and Screening and Follow-up. The Step-bystep Agenda section will provide women with synchronized information regarding medical appointments. Finally, the Stories and testimonies section will include the stories of HPV-positive women regarding HPV and CC in clear language.

DISCUSSION
In this study, we described the 10 steps to produce the IA of an app aimed at providing information, reducing the psychosocial impact of HPV testing, and counseling HPVtested women. We used a UCD approach that implied identifying the users' needs, design preferences, and the facilitators for uptake and sustained use of the app. For an app aimed at a behavior change intervention, the design needed a balance between the users' preferences and an evidence-based and theory-driven design. We relied in design thinking framework to face this challenge, and we described how we translated it into a coherent IA.
The app design was based on formative research conducted among urban women living in the Metropolitan Area Persona: Norma had an HPV-positive result and an abnormal Pap result.

Counseling aim:
To encourage her to make and assist the different appointments by highlighting the importance of follow-up procedures for CC prevention, providing her with information, and supporting her during the process. Context: She reported problems getting appointments and a lack of time for another medical consultation.

User's activity
Visit the HCC to do a routine gynecological control.
HPV testing and Pap smear.
At home, Norma starts to think. Doubts: What is HPV? What results I can expect from this test?
Visit the HCC to pickup results, but she needs to talk with a doctor.
Visit the HCC to get the colposcopy and biopsy.
Norma has her diagnosis and need a treatment.

Health care center (HCC)
The doctor explains why is HPV testing important in CC prevention.
The doctor invited her to download the app.
The results are HPV-positive and abnormal Pap. She needs a colposcopy.
The doctor explains that maybe she will need treatment.
The doctor treats her and has a successful result.  of Buenos Aires. The results showed that women reported unmet information needs regarding HPV and follow-up steps 29 and that is why for them the app's main objective should be to provide information on HPV, CC, and steps to follow after different HPV test results. This turned out to be the organizing axis of the design, and it became a prominent element in the different screens. 29 Studies carried out in several rural and urban settings from Argentina 7,14,33 and Latin America and among Hispanic women from the United States 39-41 found similar information needs. Therefore, our IA on the basis of the information needs and psychosocial concerns of urban women from Argentina might be also usable in other regional contexts, whether rural or urban. Clearly, some app adaptations will be needed regarding specific aspects highly influenced by the sociocultural and health system environment. 42 Thus, in certain settings, it might be necessary to test the wording to adjust the language to the variations of Spanish within LA or translate it into Portuguese for the Brazilian audience. In addition, diagnosis/treatment algorithms might vary, so specific adaptations will be needed to provide women with information about how to continue the line of care. Thus, the app IA has provided a design map about how content should be organized and navigated, but the specific, locally dependent information that will be included could be adapted to different settings. mHealth interventions are particularly suited to assist underserved people accessing health services irrespective of time, place, and person. 43 Previous research 44 has shown that mHealth-based interventions can be more effective among rural women as they constitute a powerful tool to connect rural women with the health system. Thus, the app might be an intervention particularly suitable to increase rural women access to HPV-related information and resources. Some concern exists regarding lower mobile phone use in rural areas, 45 which might hinder use of the app in those settings. At present, around 73% of the Latin American population has a mobile phone, 46 and in Argentina, this figure is 84%. 47 Additionally, the mobile phone penetration rate is rapidly increasing in the region, especially after the COVID-19 pandemics. 46 Therefore, it is possible to hypothesize that even if at earlier stages of the app implementation some rural women might not be reached, on the long-term, as the urbandigital divides closes, the app might be used equally implemented both in rural and urban settings.

Emotions
Dissemination refers to how evidence-based practices are communicated among potential adopters and implementers to produce uptake and effective use. 48 Our study showed that women would use the app specially if recommended by health professionals and endorsed by health authorities. Thus, we envisaged the app as a tool to be offered by health professionals to women during screeningrelated consultations, enhancing provider-patient communication. Research has shown that early involvement of implementers in intervention design is a facilitator of its adoption. 49,50 In our study, both potential adopters and decision makers views were included in the IA design phase mainly through its inclusion in the Advisory Committee, where they commented and provided advice on the design process. Very importantly, they were favorable to the app design and implementation and considered that it would fill a gap in the screening process. There was also agreement in visualizing the implementation of the app as potentially integrated into the set of strategies included in municipal/

What is HPV?
See more Î Step-By-Step Agenda

Section introduction
Once the agenda has been started, "Your next step" will be highlighted "Schedule Reminder" button "Manage Reminder" button "My Step-by-Step Agenda" button "Test and CheckUp Info" button Step-by-step agenda Schedule reminder  provincial/national screening policies. In addition, we are at present carrying out formative research to incorporate health professionals' views about obstacles and facilitators of the app implementation/dissemination. This will allow design of strategies to address contextual barriers and guarantee successful adoption of an app-based intervention. 51,52 A main barrier to incorporating an app as part of health services provision is a potential low rate of app download/ use. To reduce this problem, we used a UCD approach, as it allows considering needs of users, app design preferences, and barriers and facilitators that prohibit or encourage app uptake and sustained use. 27 Increasing the app download/ use can also be achieved through appropriate implementation strategies. In a study that found that an app-based intervention was effective to increase mammograms among Korean American immigrant women, 53 study staff downloaded the app into women's mobile phones during the enrollment consultation. The results of that study underscore the importance of developing the app as a tool that should be offered and downloaded during the screening consultation with support by health providers.
Translation of our results into an effective app that is part of a programmatic strategy to prevent CC implies an evaluation of its implementation at different levels. In addition, developing app features and multimedia content involves an iterative process between researchers and potential users to reflect their needs in the app design. 54 Thus, the evaluation phase will start with usability and quality testing of the app prototype by potential adopters and end-users. 55 This will include women assessment of the app's content comprehension and interaction experience, with the aim of obtaining a product to be validated in real-life contexts and with larger numbers of women. Finally, evaluation of the strategy will be key to determine if the app implementation is effective to increase women knowledge about HPV testing and decrease the psychosocial impact of HPV positivity. On the basis of Implementation Science frameworks, the evaluation will use quantitative and qualitative methods to assess the app effectiveness, acceptability and adoption, and identify and understand barriers and facilitators of its implementation.

AUTHORS' DISCLOSURES OF POTENTIAL CONFLICTS OF INTEREST
The following represents disclosure information provided by authors of this manuscript. All relationships are considered compensated unless otherwise noted. Relationships are self-held unless noted. I = Immediate Family Member, Inst = My Institution. Relationships may not relate to the subject matter of this manuscript. For more information about ASCO's conflict of interest policy, please refer to www.asco.org/rwc or ascopubs. org/go/authors/author-center. Open Payments is a public database containing information reported by companies about payments made to US-licensed physicians (Open Payments).