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Niznik T, Ehlke SJ, Mermelstein R, Vandrey R, Hedeker D, Villanti AC, Cohn AM. Parameters of EMA Compliance and Self-Reported Reactivity in a Longitudinal Study of Young Adult Cannabis and Tobacco Co-Users. CANNABIS (ALBUQUERQUE, N.M.) 2023; 6:47-61. [PMID: 37484048 PMCID: PMC10361806 DOI: 10.26828/cannabis/2023/000139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Background Co-use of cannabis and tobacco has become increasingly popular among young adults. Interactive voice response (IVR) based ecological momentary assessment (EMA) allows for measurement of behavior in or near real-time, but has limitations including non-compliance, missing data, and potential for reactivity (e.g., behavior change) from frequent assessments. Methods This study examined tobacco and cannabis use characteristics and factors associated with IVR compliance and self-reported reactivity in 97 young adults who reported cannabis and tobacco co-use at baseline and completed daily IVR surveys of co-use behavior at three random times per day for 28 days. Results Overall IVR compliance was 55%, with a modal compliance of 60%. Compliance rates did not differ across morning, midday, and evening surveys, but significantly declined over time. The sample was divided into high frequency responders (>70% calls completed, n=35) and low frequency responders (<70%, calls completed n=62). There were no differences between high and low frequency responders on any baseline demographic, tobacco use (nicotine dependence severity), alcohol, or cannabis use characteristics (past 30-day frequency of use). Participants were receptive to IVR-based EMA monitoring and, 16.5% reported purposely decreasing nicotine/tobacco use due to monitoring, while 19.6% reported purposely decreasing cannabis use, which predicted lower cannabis use post-EMA monitoring. Conclusions Real-time assessment of co-use behavior among young adults does not appear to be impacted by specific demographics or substance use severity (nicotine dependence, heavy drinking). Data suggest some predictive utility of IVR-based EMA monitoring on short-term behavior change. More intensive approaches are needed to improve compliance among young adult cannabis and tobacco co-users.
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Affiliation(s)
- Taylor Niznik
- TSET Health Promotion Research Center, Stephenson Cancer Center, Oklahoma City; University of Oklahoma Health Sciences Center, TSET Health Promotion Research Center, Oklahoma City, OK
| | - Sarah J. Ehlke
- TSET Health Promotion Research Center, Stephenson Cancer Center, Oklahoma City; University of Oklahoma Health Sciences Center, TSET Health Promotion Research Center, Oklahoma City, OK
| | - Robin Mermelstein
- Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL
| | - Ryan Vandrey
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Donald Hedeker
- Department of Public Health Sciences, University of Chicago, Chicago, IL
| | - Andrea C. Villanti
- Rutgers Center for Tobacco Studies and Department of Health Behavior, Society and Policy, Rutgers School of Public Health, New Brunswick, NJ
| | - Amy M. Cohn
- TSET Health Promotion Research Center, Stephenson Cancer Center, Oklahoma City; University of Oklahoma Health Sciences Center, TSET Health Promotion Research Center, Oklahoma City, OK
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK
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Tang W, Gunn HJ, Kwok S, Comulada WS, Arnold EM, Swendeman D, Fernández MI. Response Patterns to Weekly Short Message Service Health Surveys Among Diverse Youth at High Risk for Acquiring HIV. AIDS Behav 2022; 26:2229-2241. [PMID: 35018546 DOI: 10.1007/s10461-021-03569-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/24/2021] [Indexed: 11/30/2022]
Abstract
HIV researchers use short messaging service (SMS)-based surveys to monitor health behaviors more closely than what would be possible with in-person assessment. Benefits are tempered by nonresponse to completing surveys. Understanding response patterns and their associated study participant characteristics would guide more tailored use of SMS-based surveys for HIV studies. We examined response to weekly 7-item SMS surveys administered as part of an HIV prevention trial. Using Mixture hidden Markov models (MHMM), we identified the underlying response patterns shared by subgroups of participants over time and quantified the association between these response patterns and participant characteristics. Three underlying response patterns were identified; responders, responders with phone-related errors, and non-responders. Non-responders versus responders were more likely to be younger, male, cis-gender, Black and Latinx participants with histories of homelessness, incarceration, and social support service utilization. Responders with phone-related errors compared to non-responders were more likely to be Black, Latinx, female, students, and have a history of incarceration and social support service utilization. More nuanced results from MHMM analyses better inform what strategies to use for increasing SMS response rates, including assisting in securing phone ownership/service for responders with phone-related errors and identifying alternative strategies for non-responders. Actively collecting and monitoring non-delivery notification data available from SMS gateway service companies offers another opportunity to identify and connect with participants when they are willing but unable to respond during follow-up.
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Affiliation(s)
- Wenze Tang
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Stephen Kwok
- UCLA Center for Community Health, Los Angeles, CA, USA
| | - W Scott Comulada
- UCLA Center for Community Health, 10920 Wilshire Blvd Suite 350, Los Angeles, CA, 90024, USA.
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3
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Turner CM, Trujillo D, Le V, Wilson EC, Arayasirikul S. Event-Level Association Between Daily Alcohol Use and Same-Day Nonadherence to Antiretroviral Therapy Among Young Men Who Have Sex With Men and Trans Women Living With HIV: Intensive Longitudinal Study. JMIR Mhealth Uhealth 2020; 8:e22733. [PMID: 33055070 PMCID: PMC7596651 DOI: 10.2196/22733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/16/2020] [Accepted: 09/16/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Young trans women (TW) and men who have sex with men (MSM) are disproportionately impacted by HIV. Optimizing adherence to antiretroviral therapy (ART) is one mechanism by which public health experts aim to achieve favorable HIV health outcomes while reducing disease transmission. However, alcohol use is prevalent among young TW and MSM and threatens optimal adherence. In addition, the daily variations in alcohol use and ART adherence and their association with each other are poorly understood, warranting more appropriate methodological approaches, such as analysis of ecological momentary assessment (EMA) data. OBJECTIVE The aim of this analysis is to characterize the association between daily alcohol use and same-day ART nonadherence captured by an EMA study of young MSM and TW living with HIV in San Francisco. METHODS Young MSM and TW enrolled in the Health eNav digital HIV care navigation intervention were included in the analytic sample (N=113). Data on alcohol and ART use were collected by daily EMA surveys administered via text messaging and were analyzed over 30 days of follow-up. A multivariable mixed-effects logistic regression model adjusting for baseline sociodemographic characteristics was specified to investigate whether daily alcohol use was associated with same-day ART nonuse. RESULTS Daily alcohol use was associated with higher same-day ART nonuse. On average, participants drank alcohol on 15.20 (SD 8.93) days and used ART on 15.19 (SD 10.16) days out of 30 days. Daily alcohol use was associated with 1.89 (95% CI 1.14-3.15) times the adjusted odds of same-day ART nonuse for each participant. CONCLUSIONS Results are consistent with other analyses of daily alcohol and ART use and underscore the importance of individually targeted interventions that are sensitive to each participant's dynamic risk environment. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) RR2-10.2196/16406.
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Affiliation(s)
- Caitlin Marie Turner
- Trans Research Unit for Equity, Center for Public Health Research, San Francisco Department of Public Health, San Francisco, CA, United States.,Doctoral Program in Epidemiology & Translational Science, Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, United States
| | - Dillon Trujillo
- Trans Research Unit for Equity, Center for Public Health Research, San Francisco Department of Public Health, San Francisco, CA, United States
| | - Victory Le
- Trans Research Unit for Equity, Center for Public Health Research, San Francisco Department of Public Health, San Francisco, CA, United States.,California School of Professional Psychology, Alliant International University, San Francisco, CA, United States
| | - Erin C Wilson
- Trans Research Unit for Equity, Center for Public Health Research, San Francisco Department of Public Health, San Francisco, CA, United States.,Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, United States
| | - Sean Arayasirikul
- Trans Research Unit for Equity, Center for Public Health Research, San Francisco Department of Public Health, San Francisco, CA, United States.,Department of Pediatrics, School of Medicine, University of California, San Francisco, CA, United States
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4
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Grov C, Westmoreland D, Rendina HJ, Nash D. Seeing Is Believing? Unique Capabilities of Internet-Only Studies as a Tool for Implementation Research on HIV Prevention for Men Who Have Sex With Men: A Review of Studies and Methodological Considerations. J Acquir Immune Defic Syndr 2019; 82 Suppl 3:S253-S260. [PMID: 31764261 PMCID: PMC6880799 DOI: 10.1097/qai.0000000000002217] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND In 2014, Grov et al published a comprehensive review cataloguing both men who have sex with men's (MSM's) sexual behavior transitions in online environments from the 1990s through 2013, as well as researchers' efforts in tandem to use the internet to engage MSM into research, treatment, and prevention. METHODS In this article, we discuss historical events and research having occurred in the half decade since the Grov et al publication. RESULTS Notable transitions include MSM's expanded use of geosocial networking apps, as well as other forms of social media accessed primarily through mobile devices, as well as the addition of biomedical prevention strategies (eg, pre-exposure prophylaxis and undetectable = untransmittable) to the proverbial HIV prevention toolkit. In tandem, researchers have rapidly expanded their employment of internet-mediated methods for the recruitment and engagement of key populations for HIV research, treatment, and prevention. In this article, we discuss methodological considerations for using the internet to conduct HIV prevention research with MSM: (1) sources of recruitment (eg, geosocial apps, Facebook, crowdsourced online panels); (2) design (eg, cross sectional, longitudinal, diaries); (3) incentives (including disincentivizing fraudulent participants and/or spam bots); (4) confidentiality; and (5) representativeness. CONCLUSION We conclude by discussing future directions in HIV prevention research in light of forthcoming technologies such as fifth generation (5G) mobile networks, combined use of self-collected biological data alongside self-report, and the utility of metadata and metaresearch to document, evaluate, and inform best practices.
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Affiliation(s)
- Christian Grov
- CUNY Graduate School of Public Health and Health Policy, New York, NY
- CUNY Institute for Implementation Science in Population Health, New York, NY
| | - Drew Westmoreland
- CUNY Institute for Implementation Science in Population Health, New York, NY
| | | | - Denis Nash
- CUNY Graduate School of Public Health and Health Policy, New York, NY
- CUNY Institute for Implementation Science in Population Health, New York, NY
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Rendina HJ, Millar BM, Dash G, Feldstein Ewing SW, Parsons JT. The Somatic Marker Hypothesis and Sexual Decision Making: Understanding the Role of Iowa Gambling Task Performance and Daily Sexual Arousal on the Sexual Behavior of Gay and Bisexual Men. Ann Behav Med 2019; 52:380-392. [PMID: 29684131 DOI: 10.1093/abm/kax006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background The sexual decision-making literature suggests that sexual arousal and behavior are associated. The somatic marker hypothesis suggests that individual neuropsychological differences in decision making, as measured by the Iowa Gambling Task (IGT), may moderate these associations; however, this hypothesis has yet to be tested with event-level sexual behavior data. Purpose We hypothesized that (a) daily sexual arousal would be positively associated with likelihood of engaging in sex and condomless anal sex (CAS) and (b) IGT scores would moderate these associations such that the associations would be stronger among those with higher IGT scores. Methods We used daily diary data from 334 highly sexually active gay and bisexual men to examine the main and interaction effects of sexual arousal and IGT scores on sexual engagement and CAS. Results As hypothesized, daily sexual arousal was positively associated with greater odds of both sexual engagement and CAS with casual male partners. Individual-level IGT performance significantly moderated the day-level association between arousal and sexual engagement, which was stronger for men with higher IGT scores. There was no main effect of IGT scores on either sexual behavior outcome, nor did it moderate the association between arousal and CAS. Conclusions These findings highlight the influence of sexual arousal on sexual engagement, which differed by IGT scores; the effect of arousal on CAS was much less variable and may not be moderated by neurocognitive factors. This study supports the importance of exploring integrated behavioral/biomedical interventions to improve individual decision making to prevent HIV infection.
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Affiliation(s)
- H Jonathon Rendina
- Department of Psychology, Hunter College of the City University of New York (CUNY), Park Avenue, New York, NY, USA.,Center for HIV/AIDS Educational Studies and Training (CHEST), Hunter College of the City University of New York (CUNY), New York, NY, USA.,Health Psychology and Clinical Science Doctoral Program, The Graduate Center of the City University of New York (CUNY), New York, NY, USA
| | - Brett M Millar
- Center for HIV/AIDS Educational Studies and Training (CHEST), Hunter College of the City University of New York (CUNY), New York, NY, USA.,Health Psychology and Clinical Science Doctoral Program, The Graduate Center of the City University of New York (CUNY), New York, NY, USA
| | - Genevieve Dash
- Department of Psychiatry, Oregon Health and Science University, Portland, OR, USA
| | | | - Jeffrey T Parsons
- Department of Psychology, Hunter College of the City University of New York (CUNY), Park Avenue, New York, NY, USA.,Center for HIV/AIDS Educational Studies and Training (CHEST), Hunter College of the City University of New York (CUNY), New York, NY, USA.,Health Psychology and Clinical Science Doctoral Program, The Graduate Center of the City University of New York (CUNY), New York, NY, USA
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Turner CM, Arayasirikul S, Trujillo D, Lê V, Wilson EC. Social Inequity and Structural Barriers to Completion of Ecological Momentary Assessments for Young Men Who Have Sex With Men and Trans Women Living With HIV in San Francisco. JMIR Mhealth Uhealth 2019; 7:e13241. [PMID: 31066714 PMCID: PMC6530262 DOI: 10.2196/13241] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 03/25/2019] [Accepted: 03/29/2019] [Indexed: 01/15/2023] Open
Abstract
Background Ecological momentary assessments (EMAs) administered via text messaging facilitate real-time data collection. With widespread cell phone access, EMAs are becoming more available to even the most disenfranchised communities, such as those living with HIV. However, structural barriers disproportionately burden young men who have sex with men (MSM) and trans women (TW) living with HIV and threaten participation in HIV research. Objective We aim to identify structural barriers to completing EMA text surveys nested within a digital HIV care intervention for young MSM and TW living with HIV in San Francisco. Methods A total of 10,800 EMA text messages were delivered daily over 90 days to 120 participants enrolled in the Health eNav intervention (2017-2018) at the San Francisco Department of Public Health. EMA surveys inquired about participants’ daily affect, sexual behaviors, substance use, and treatment adherence. Survey completion was calculated after 30, 60, and 90 days of follow-up. We described characteristics of nonstarters (those who provided less than four complete responses to the first seven EMA surveys) and analyzed structural correlates of days to first weeklong or more EMA survey noncompletion using multivariable Cox proportional hazards regression. Qualitative interviews were used to evaluate the acceptability of EMA surveys. Results Participants completed 4384 of 10,800 (40.59%) EMA surveys. Completion of 70% or more of EMA surveys was attained by 56 of 120 participants (46.7%) at 30 days of follow-up, 40/120 (33.3%) at 60 days of follow-up, and 30/120 (25.0%) by the end of the 90-day study period. Twenty-eight participants (23.3%) were identified as nonstarters, and were more likely to be recently incarcerated (prevalence ratio [PR] 2.3, 95% CI 1.3-4.4), forego basic needs for HIV medications (PR 2.4, 95% CI 1.3-4.5), and be diagnosed with HIV in the last year (PR 2.2, 95% CI 1.1-4.1). Adjusting for nonstarters, young MSM and TW living in temporary/transitional housing (adjusted hazard ratio [aHR] 1.8, 95% CI 1.1-3.0), foregoing HIV medications to afford basic needs (aHR 1.7, 95% CI 1.1-2.7), and having less than a college education (aHR 3.5, 95% CI 1.4-9.0) had greater hazard of weeklong or more EMA survey noncompletion. Overall, there was high acceptability of the EMA surveys. Conclusions Although access to and use of technology is increasingly ubiquitous, this analysis demonstrates persisting gaps in EMA completion by socioeconomic factors such as incarceration, education level, housing, and competing needs for young MSM and TW living with HIV in San Francisco. Moreover, those recently diagnosed with HIV were more likely to experience an immediate drop-off in completing EMA surveys. EMAs are feasible for individuals not experiencing social inequity and structural barriers. HIV prevention technologies addressing these barriers and leveraging similar methodology may prove effective for young MSM and TW living with HIV.
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Affiliation(s)
- Caitlin M Turner
- San Francisco Department of Public Health, San Francisco, CA, United States
| | - Sean Arayasirikul
- San Francisco Department of Public Health, San Francisco, CA, United States
| | - Dillon Trujillo
- San Francisco Department of Public Health, San Francisco, CA, United States
| | - Victory Lê
- San Francisco Department of Public Health, San Francisco, CA, United States
| | - Erin C Wilson
- San Francisco Department of Public Health, San Francisco, CA, United States
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Ventuneac A, John SA, Whitfield THF, Mustanski B, Parsons JT. Preferences for Sexual Health Smartphone App Features Among Gay and Bisexual Men. AIDS Behav 2018; 22:3384-3394. [PMID: 29948335 PMCID: PMC6148366 DOI: 10.1007/s10461-018-2171-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Given the popularity of geosocial networking applications ("apps") among gay, bisexual, and other men who have sex with men (GBMSM), this study sought to examine GBMSM's willingness to use sexual health and behavior tracking features if integrated within apps they are already using to meet sexual partners. Most GBMSM (91%) recruited on a popular app reported interest in one or more sexual health app features, including features to find LGBT-friendly providers (83%), receive lab results (68%), schedule appointment reminders (67%), chat with a healthcare provider (59%), and receive medication reminder alerts (42%). Fewer GBMSM were interested in tracking and receiving feedback on their sexual behavior (35%) and substance use (24%). Our data suggest that integrating sexual health and behavior tracking features for GBMSM who use apps could be promising in engaging them in HIV prevention interventions. Further research is needed on GBMSM's perspectives about potential barriers in using such features.
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Affiliation(s)
- Ana Ventuneac
- Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Steven A John
- The Center for HIV/AIDS Educational Studies & Training (CHEST), New York, NY, USA
| | - Thomas H F Whitfield
- The Center for HIV/AIDS Educational Studies & Training (CHEST), New York, NY, USA
- Health Psychology and Clinical Science Doctoral Program, The Graduate Center of the City University of New York (CUNY), New York, NY, USA
| | - Brian Mustanski
- Department of Medical Social Sciences and Institute for Sexual and Gender Minority Health and Wellbeing, Northwestern University, 625 N Michigan Ave, Suite 1400, Chicago, IL, 60611, USA.
| | - Jeffrey T Parsons
- The Center for HIV/AIDS Educational Studies & Training (CHEST), New York, NY, USA
- Health Psychology and Clinical Science Doctoral Program, The Graduate Center of the City University of New York (CUNY), New York, NY, USA
- Department of Psychology, Hunter College of the City University of New York (CUNY), New York, NY, USA
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8
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Rowe C, Vittinghoff E, Colfax G, Coffin PO, Santos GM. Correlates of Validity of Self-Reported Methamphetamine Use among a Sample of Dependent Adults. Subst Use Misuse 2018; 53:1742-1755. [PMID: 29461134 PMCID: PMC6530983 DOI: 10.1080/10826084.2018.1432649] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Self-reported data are widely used in substance-use research, yet few studies have assessed the validity of self-reported methamphetamine use compared to biological assays. OBJECTIVES We sought to assess the validity and correlates of validity of self-reported methamphetamine use compared to urine toxicology (UTOX). METHODS Using a sample of methamphetamine-dependent individuals enrolled in a randomized controlled pharmacotherapy trial in the United States (n = 327 visits among 90 participants), we calculated sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and the kappa coefficient of self-reported methamphetamine use in the past 3 days compared to UTOX, as well as the NPV of self-reported methamphetamine use over an extended recall period of 1 month. We used multivariable logistic regression models to assess correlates of concordance between self-reported methamphetamine use and UTOX. RESULTS The sensitivity of self-reported methamphetamine use in the past 3 days was 86.7% (95% confidence intervals (95%CI): 81.4%-91.4%), the specificity was 85.3% (77.7-91.3), the PPV was 91.5% (86.9-94.8), and the NPV was 78.0% (69.4-86.1), compared to UTOX (kappa = 0.71). The NPV over the extended recall period was 70.6% (48.0-85.7). In multivariable analyses, validity of self-reported methamphetamine use was higher for older participants but lower during follow-up compared to baseline and when polysubstance use or depressive symptoms were reported. Conclusions/Importance: Our sample of methamphetamine-dependent adults reported recent methamphetamine use with high validity compared to UTOX. Validity increased with age but decreased when participants reported depressive symptoms or polysubstance use as well as later in the study timeline and during longer recall periods.
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Affiliation(s)
- Christopher Rowe
- a Substance Use Research Unit, San Francisco Department of Public Health , San Francisco , California , USA
| | - Eric Vittinghoff
- b Department of Epidemiology and Biostatistics , University of California , San Francisco , California , USA
| | - Grant Colfax
- c Department of Health and Human Services , County of Marin , San Rafael , California , USA
| | - Phillip O Coffin
- a Substance Use Research Unit, San Francisco Department of Public Health , San Francisco , California , USA.,d Division of HIV, Infectious Disease and Global Medicine , University of California , San Francisco , California , USA
| | - Glenn-Milo Santos
- a Substance Use Research Unit, San Francisco Department of Public Health , San Francisco , California , USA.,e Department of Community Health Systems , University of California , San Francisco , California , USA
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Newcomb ME, Swann G, Estabrook R, Corden M, Begale M, Ashbeck A, Mohr D, Mustanski B. Patterns and Predictors of Compliance in a Prospective Diary Study of Substance Use and Sexual Behavior in a Sample of Young Men Who Have Sex With Men. Assessment 2016; 25:403-414. [PMID: 27586686 DOI: 10.1177/1073191116667584] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Behavioral diaries are used for observing health-related behaviors prospectively. Little is known about patterns and predictors of diary compliance to better understand differential attrition. An analytic sample of 241 young men who have sex with men (YMSM) from a 2-month diary study of substance use and sexual behavior were randomized to complete daily or weekly timeline followback diaries. Latent class growth analyses were used to analyze data. Weekly and daily diary groups produced similar compliance patterns: high, low, and declining compliance groups. Black YMSM were more likely to be in the declining compared with the high compliance group. YMSM who were randomly assigned to receive automated feedback about risk behaviors did not differ in compliance rate compared with those who did not. Risk behavior engagement did not predict compliance in the daily condition, but some substances predicted compliance in the weekly condition. Implications for observational and behavior change methods are discussed.
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Affiliation(s)
| | | | | | | | | | | | - David Mohr
- 1 Northwestern University, Chicago, IL, USA
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