The Accuracy of Self-Reports of Condom Use and Sexual Behavior

Sexual Activity of Older Adults: A Systematic Review of the Literature

Objective: The goal was to conduct a literature review of studies that examined sexual activity in older adults. Method: A systematic search was conducted to identify studies that had examined sexual activity in adults aged 60 years and older. The main characteristics of each study and results were examined and reported according to PRISMA guidelines. Results: Sixty-three articles were found. These articles were classified into three main groups based on the results they presented: percentage of older adults that were sexually active; frequency of sexual activity; and type of sexual activities. The results show that older adults are sexually active, engage in frequent sexual activity, and participate in a wide variety of activities. Conclusions: Although older adults remain sexually active, differences in the way sexual activity is assessed limit the drawing of firm conclusions and our understanding of the sexual activity of older adults. We propose a series of recommendations to gain a better understanding of this topic.

Sexual Desire in Women: Paradoxical and Nonlinear Associations with Anxiety and Depressed Mood

The aim of the present study was to expand previous findings regarding paradoxical effects of negative mood on sexual desire. This was done by considering the full range of depressed mood and anxiety symptoms and using methods that are unaffected by recall bias and that don't require participants to infer causal associations between their mood and sexual desire. A convenience sample of 213 university students completed daily questionnaires for approximately two months. Multilevel random-effects models were used to estimate average effects for the entire sample and to test for variability across participants in the associations between negative mood and sexual desire, controlling also for potential influences of the menstrual cycle. Previous findings showing that some women report decreased sexual desire and others increased sexual desire when depressed or anxious were confirmed. More importantly, for both depressed mood and anxiety, results demonstrated the presence of within-person paradoxical associations, whereby there were some women for whom both low and high levels of negative mood were associated with the same change (an increase or a decrease) in sexual desire. Related to these diverse response patterns, paradoxical associations between negative mood and sexual desire were also present at low levels of negative mood. The discussion underlines the importance of considering individual variability and multifactorial nonlinear models when studying sexual desire.

Inter-partner Agreement of Condom Use and Sexual Positioning in Male Couples

Accurate, reliable self-reports of sexual behavior are a crucial component of valid HIV risk-estimation and behavioral intervention evaluation, yet this data's reliability remains understudied. The goal of this study was to describe interpartner agreement on recent receptive anal intercourse (AI) and condomless receptive AI frequencies, among a sample of male couples. We quantified interpartner agreement on self-reported receptive AI and condomless receptive AI (absolute and relative to AI frequency), and position and condom use during a couple's most recent AI, using cross-sectional data from male partners (US, 2016-2017; N = 718 individuals). Proportional and statistical agreement (intraclass correlation coefficients (ICC), kappa (k)) were assessed. Observed agreement for receptive AI frequency was 49.44% (ICC (95% CI): 0.82(0.79, 0.84)) and for relative receptive frequency, 59.05% (ICC: 0.96 (0.85, 0.96). Agreement on condomless receptive AI was 90.21% (ICC: 0.78 (0.75, 0.82), and for relative condomless receptive AI, 91.15% (ICC: 0.80 (0.77, 0.83). Most recent AI position agreement was 89.42% (k (95% CI): 0.84 (0.80, 0.88)), and condom use, 98.89% (k: 0.82 (0.87, 0.98)). Observed agreement was higher among those who reported consistent positioning and condom use. Further research on self-reported sexual behavior data is needed to improve research validity and intervention effectiveness.

Self-objectification and sexual satisfaction: A preregistered test of the replicability and robustness of Calogero & Thompson (2009) in a sample of U.S. women

Objectification theory has provided a useful framework for the study of women's sexual outcomes. However, little research has been conducted on the role of self-objectification in predicting sexual satisfaction. We conducted a replication of Calogero and Thompson (2009a), which reported a direct relationship between self-surveillance and sexual satisfaction, and expanded upon their work. We tested four path analysis models: Calogero and Thompson's reported and hypothesized models, and two previously untested models, all containing our variables of interest (media internalization, self-surveillance, body shame, sexual self-esteem, and sexual satisfaction). Each model was tested with the full sample (N = 349) and a restricted sample (N = 127) that met Calogero and Thompson's relationship status and sexual frequency inclusion criteria, and with and without BMI covaried. Both samples consisted of U.S. college women recruited in Fall 2019, with a mean age of M = 19.68 in the restricted sample. Results showed good fit for all tested models but failed to replicate the direct pathway between self-surveillance and sexual satisfaction. Instead, our models supported an indirect effect of self-surveillance on sexual satisfaction through body shame and sexual self-esteem. Findings support the role of sociocultural channels in influencing college women's body image and sexual experiences.

"You Are on the Right Track With the App:" Qualitative Analysis of Mobile Phone Use and User Feedback Regarding Mobile Phone Sexual Risk Assessments for HIV Prevention Research

Background: Accurate self-report of sexual behavior assists in identifying potential HIV exposure in HIV prevention trials. Brief mobile phone assessments, completed daily or after sexual activity, can improve the validity and reliability of self-reported sexual behavior and allow for remote survey completion outside of the clinic setting. We conducted a qualitative study to better understand participants mobile phone use and to explore their perspectives on how to improve an existing mobile application-based sexual risk assessment.

Methods: Sexually active, HIV seronegative men (n = 14) and women (n = 15) aged 18–39 years were recruited through an HIV counseling and testing clinic and community outreach in Soweto, South Africa. We conducted qualitative research through four age-stratified focus group discussions (FGDs) and analyzed a brief socio-demographics and mobile phone access questionnaire. All participants completed a sexual risk assessment before the FGD. Using a framework analytic approach, data were coded with Nvivo software.

Results: All participants had access to mobile phones and internet, and 27 (93.1%) were able to download applications on their personal phones. Participants preferred mobile risk assessments to be offered in a choice of South African languages, using formal language (as opposed to emojis), with straight-forward wording and limited to five to 10 questions. Most participants found it acceptable to complete the assessment once a week, on a weekday, while a few were willing to complete it after each sexual encounter. It was suggested that a message reminder to complete the assessment should be sent at least daily until it is completed. The majority agreed that a password-protected application with a discreet logo was ideal for privacy, ease of use and flexibility for completion in any setting. A concern with this format, however, was the potential data use requirement. Participants expressed privacy concerns with using SMS, WhatsApp and other social media for risk assessments. Most agreed on an airtime incentive between ZAR5-10 (USD 0.29–0.58) per survey. Participants encouraged researchers to provide feedback to them about their sexual risk.

Conclusions: Completion of mobile phone sexual risk assessments can be optimized with minimal incentives by ensuring that questionnaires are simple, brief, infrequent and have trusted privacy measures.

Assessing the Reliability of Self-Reported Sexual Behavior Among Male Couples

Coupled gay, bisexual, and other men who have sex with men (GBMSM) are at particularly high risk for HIV, and a clear understanding of behavioral risk is key to effective interventions. Accurate behavioral self-reports are a crucial component of valid sexual health research, yet reliability of these data remains understudied. This study aimed to quantify and identify predictors of dyadic discordance in reported 3-month anal intercourse (AI) occurrence and frequency. Using cross-sectional data from 407 male couples in the U.S. (2016-2017), we calculated proportional dyadic concordance and used dyad-level logistic and linear regression to identify demographic, behavioral, and relationship traits associated with the odds of discordant frequency reports and the relative difference between discordant partner reports. Couples had high levels of concordant reports of 3-month anal AI occurrence (97%) but low interpartner agreement in reported frequency (37%). After adjustment, the odds of discordance were significantly associated with dyadic employment and differences on the Communal Coping to Reduce HIV Threat Scale (CCS) (p < .05). Among frequency-discordant couples, the mean relative difference between partner reports was 52.80% ± 35.91% (M ± SD). After adjustment, relative differences between partners' reported AI frequencies were positively associated with interpartner differences in CCS (p < .05). These results indicate that among GBMSM couples in committed partnerships, self-reported sexual behavior data may be impacted by granularity, recall, and relationship characteristics. Further research in this area is warranted to better understand measurement error in self-reported sexual activity data.

Predicting implementation: comparing validated measures of intention and assessing the role of motivation when designing behavioral interventions

BACKGROUND

Behavioral intention (which captures one's level of motivation to perform a behavior) is considered a causal and proximal mechanism influencing the use of evidence-based practice (EBP). Implementation studies have measured intention differently, and it is unclear which is most predictive. Some use items referring to "evidence-based practice" in general, whereas others refer to a specific EBP. There are also unresolved debates about whether item stems should be worded "I intend to," "I will," or "How likely are you to" and if a single-item measure can suffice. Using each stem to refer to either a specific EBP or to "evidence-based practice," this study compares the ability of these commonly used measures to predict future EBP implementation. The predictive validity is important for causal model testing and the development of effective implementation strategies.

METHODS

A longitudinal study enrolled 70 teachers to track their use of two EBPs and compare the predictive validity of six different items measuring teachers' intention. The measures differ by whether an item refers to a specific EBP, or to "evidence-based practices" in general, and whether the stem is worded in one of the three ways: "I intend to," "I will," or "How likely are you to." For each item, linear regressions estimated the variance in future behavior explained. We also compared the predictive validity of a single item versus an aggregate of items by inter-correlating the items using different stems and estimating the explained variance in EBP implementation.

RESULTS

Depending on the EBP and how intention was measured, the explained variance in implementation ranged from 3.5 to 29.0%. Measures that referred to a specific EBP, rather than "evidence-based practices" in general, accounted for more variance in implementation (e.g., 29.0% vs. 8.6%, and 11.3% vs. 3.5%). The predictive validity varied depending on whether stems were worded "I intend to," "I will," or "How likely are you to."

CONCLUSIONS

The observed strength of the association between intentions and EBP use will depend on how intention is measured. The association was much stronger if an item referred to a specific EBP, rather than EBP in general. To predict implementation, the results support using an aggregate of two or three intention items that refer to the specific EBP. An even more pragmatic measure of intention consisting of a single item can also predict implementation. As discussed, the relationship will also vary depending on the EBP, which has direct implications for causal model testing and the design of implementation strategies.

Agreement between gay, bisexual and other men who have sex with men's period prevalence and event-level recall of sexual behaviour: an observational respondent-driven sampling study

Background Agreement between sexual behaviour recall measures among gay, bisexual and other men who have sex with men (GBM) in Vancouver, Canada was examined.

METHODS

Study participants were sexually active GBM aged ≥16 years recruited via respondent-driving sampling (RDS). Participants completed a computer-assisted self-interview survey, including individual-level period prevalence (last 6 months) and sexual event-level (last sex with each of the five most recent partners) measures. RDS-weighted kappa statistics assessed the agreement between these types of data across five different sexual risk outcomes, stratified by self-identified HIV status and other demographic factors (age, education, race/ethnicity).

RESULTS

Of 719 participants, 195 (RDS-weighted 23.4%) were HIV-positive. For HIV-negative GBM (n=524, RDS-weighted 76.6%), there were moderate agreements between period prevalence and event-level data for any anal intercourse (AI), any condomless AI and any fisting, but weak agreement for any discordant/unknown AI and any sex toy use. For HIV-positive GBM, there was moderate agreement for any AI, any condomless AI, any discordant/unknown AI and any fisting; there was weak agreement for any sex toy use. Agreement between measurement types was generally higher for GBM who were living with HIV, who were older and who completed secondary school; there was little difference in agreement levels by race/ethnicity.

CONCLUSIONS

We observed moderate agreement between sexual behaviour recall through event-level and period prevalence questions. Each method had differential advantages and ideal circumstances for use, which should be guided by one's research question and outcome measure of interest.

Patterns of Sexual Risk Behaviors among College Women: A Latent Profile Analysis

Sexual risk behavior is common among college women, but little work has identified risk patterns or correlates. The current study utilized latent profile analysis to identify sexual risk patterns among 1,534 college women. Results supported four classes: low sexual risk (68.2%), moderate sexual risk: party hookups (11.0%), moderate sexual risk: risky partners (17.6%), and high sexual risk (3.1%). Membership in the moderate and high-risk classes were associated with coping motives, drinking, and risky peer norms, while membership in the low risk class was associated with sexual satisfaction and low peer approval of risky sex. Implications of the findings are discussed.

Does internalized racism matter in HIV risk? Correlates of biomedical HIV prevention interventions among Black men who have sex with men in the United States

Black men who have sex with men (MSM) account for 26% of all new HIV infections in the United States. Biomedical HIV interventions have proven to reduce HIV infections however the use of these interventions by Black MSM is inconsistent. Research suggests that internalized racism may contribute to inconsistent biomedical HIV interventions (condom use and PrEP use) among Black MSM. Using a national sample of 432 Black MSM, we examined the relationship between condom and PrEP use and internalized racism. The results suggest there is some evidence for an association between internalized racism and PrEP use. In addition, internalized racism was not associated with condom use for both insertive and receptive anal sex among Black MSM. These finding suggest the relationship between internalized racism and HIV prevention strategies is not facile and more attention is needed to understand the true impact of racism, both internal and societal, on HIV prevention strategies among Black MSM. These findings underscore the nature of racism in the daily lives of Black MSM and how it impacts HIV prevention strategies adopted by these men.

Child Sexual Abuse and Negative Affect as Shared Risk Factors for Sexual Aggression and Sexual HIV Risk Behavior in Heterosexual Men

Previous research has suggested that sexually aggressive behavior and sexual HIV risk behavior are associated. Childhood sexual abuse (CSA) is a well-established risk factor for both types of problematic sexual behavior. Negative affect (i.e., anxiety, depression, and anger) is a less well-studied risk factor, but it has been theorized to relate to both sexual aggression and HIV risk behavior. Thus, this study sought to (1) confirm the relationship between sexual aggression and HIV risk behavior, (2) establish CSA and negative affect as shared risk factors for sexual aggression and HIV risk behavior, and (3) evaluate whether negative affect mediates the relationship between CSA and sexual aggression and between CSA and HIV sexual risk in a sample of heterosexual men. We recruited 18- to 30-year-old heterosexual men (N = 377) from urban sexually transmitted infection clinics. Men completed measures of sexual HIV risk history (number of partners and condom use), sexual aggression history, CSA history, and trait negative affect (anger, anxiety, and depression). Structural equation modeling was used to examine hypothesized direct and indirect relationships. In the final SEM model, sexual aggression history and sexual HIV risk behavior were correlated. CSA was associated with both types of problematic sexual behavior. Anxiety significantly mediated the relationship between CSA and sexual aggression and between CSA and sexual HIV risk behavior (χ ²[1300] = 2121.79, p < .001; CFI = 0.905; RMSEA [90% CI] = .044 [.041-.047]). Sexual aggression appears to be part of a constellation of sexual risk behaviors; thus, it may be possible to develop prevention programs that target both sexual HIV risk and sexual aggression. CSA is a shared risk factor for sexual aggression and HIV risk behavior through the pathway of anxiety. Thus, anxiety might be one promising target for intervention.

Validation of the HIV Risk Assessment of Sexual Partnerships (H-RASP): Comparison to a 2-Month Prospective Diary Study

The HIV Risk Assessment of Sexual Partnerships (H-RASP) was developed in order to create a retrospective measure of sexual risk-taking that can account for the differing contexts of sexual partnership(s) within a specified period of time. In order to validate the H-RASP relative to other methods of measuring sexual risk-taking, measurements from the H-RASP were compared to data from a prospective diary study of 95 young men who have sex with men over the same two-month period. We found that the H-RASP was not significantly different at measuring participants' total number of sexual partners and total number of anal sex partners in comparison with the diaries. The two measures were significantly different in measurement of total number of condomless anal sex (CAS) partners and number of CAS acts within partnerships, such that participants on average estimated more CAS partners and acts in the H-RASP. The two measures shared 40.8% of variance on measurement of CAS partners and 44.6% of variance on CAS acts within partnerships. These results suggest that even though the H-RASP is not a perfect replication of prospective diary data, it captures a moderate proportion of the same variance, and, in the case of CAS acts within partnerships, a proportion of the variance that likely would not be measured by retrospective measures that do not ask about behaviors specific to partnerships.

The Impact of Pregnancy and Childbirth on Sexual Behaviors: A Systematic Review

The purpose of this review was to examine and synthesize the available quality evidence to provide researchers, educators, and clinicians an overview of what is known about sexual behaviors during pregnancy and the year after childbirth. Search engines were used to identify peer-reviewed, English-language articles that met the inclusion criteria. A total of 56 prospective, retrospective, and qualitative studies published after 1996 were reviewed. A gradual decline in vaginal intercourse from prepregnancy to first trimester to third trimester was found. Most couples resume vaginal intercourse by eight weeks after childbirth, but this behavior does not occur at prepregnancy frequencies until closer to 12 months postchildbirth. Future studies should consider assessing sexual behaviors beyond vaginal intercourse and increase efforts in recruitment of diverse samples including non-White, nonheterosexual pregnant individuals, and partners of pregnant individuals.

HIV testing and prevention among foreign-born Men Who have Sex with Men: an online survey from Sweden

BACKGROUND

There is an increasing trend toward international migration worldwide. With it comes a challenge for public health and public funded health care systems to meet the migrating population's health needs. Men who have sex with men are a key population for HIV, contributing an estimated 42% of new HIV cases in Europe in 2013. HIV monitoring data suggest that foreign-born MSM are not only exposed to a high risk of HIV before migration but also while living in Sweden. The aim of this study is to examine HIV testing prevalence and uptake of HIV prevention interventions among foreign-born MSM living in Sweden.

METHODS

A web survey available in English and Swedish was conducted from October 1 to October 30, 2013 via a Scandinavian Web community for Lesbian, Gay, Bisexual, Transgender and Intergender people. The web survey included modules on sociodemographics, condom use, sexual risk behaviour and HIV/STI testing experience. 244 eligible MSM participants born abroad and living in Sweden participated in the study. Descriptive and inferential analysis was performed.

RESULTS

Half of the foreign-born MSM participants in this study had been tested for HIV during the last 12 months. Participants who had lived in Sweden less than or equal to 5 years were more likely to have been tested for HIV during the last 12 months. Having talked about HIV/STI with a prevention worker during the past year was associated with having been tested for HIV. Requested services among the majority of participants were HIV rapid test, anonymous HIV testing, HIV/STI testing outside of the health care setting and MSM-friendly clinics.

CONCLUSION

Efforts are needed to promote HIV testing among foreign-born MSM. Peer outreach, individual and group counselling may be preferred interventions to do so. In addition, it is critically important to increase HIV testing among foreign-born MSM who have lived in Sweden for more than five years. Further research should explore if scale up of implementation of requested services may increase frequency of HIV testing and detection of new cases linked to treatment among foreign-born MSM living in Sweden.

The Role of Condom Use Self-Efficacy on Intended and Actual Condom Use Among University Students in Ghana

Little attention has been paid to the dimensions that help to predict and understand condom use among university students within an African context. A cross-sectional study involving 518 university students in Accra, Ghana was conducted to determine how the Condom Use self-Efficacy Scale-Ghana (CUSES-G) can predict both actual condom use and future condom use. Of all the participants, 84% were sexually active but less than half of the sample (48%) reported to have used condom during their last sexual intercourse. A hierarchical regression analysis showed that components of the Condom Use Self-Efficacy Scale (CUESE-G) such as appropriation, assertiveness, pleasure and intoxication, and STDs predicted condom use and condom use intentions. Behavioural change campaigns targeting university students should encourage condom use self-efficacy, as this would strengthen condom use, which is economically cheap and practically effective means of preventing STIs including HIV.

Attitudes to and Understanding of Risk of Acquisition of HIV Over Time: Design and Methods for an Internet-based Prospective Cohort Study Among UK Men Who Have Sex With Men (the AURAH2 Study)

Background

The annual number of new human immunodeficiency virus (HIV) infections among men who have sex with men (MSM) has risen in the United Kingdom and, of those who are HIV positive, the proportion undiagnosed is high.

Objective

The prospective AURAH2 study aims to assess factors associated with HIV acquisition among MSM in the United Kingdom and to investigate changes over time within individuals in sexual behavior and HIV-testing practices.

Methods

AURAH2 is a prospective study among MSM without diagnosed HIV, aiming to recruit up to 1000 sexually active MSM attending sexual health clinics in London and Brighton in the United Kingdom. Participants complete an initial paper-based questionnaire, followed by online follow-up questionnaires every 4 months collecting sociodemographic, health and behavioral data, including sexual behavior, recreational and other drug use, HIV testing practices, and pre-exposure prophylaxis use, over a planned 3-year period.

Results

The study is ongoing.

Conclusions

The results from AURAH2 study will provide important insight into established and emerging risk behaviors that may be associated with acquisition of HIV in MSM in the United Kingdom, changes over time within individuals in sexual behavior, and information on HIV testing practices. These data will be crucial to inform future HIV prevention strategies.

Alcohol Mixed with Energy Drink Use as an Event-Level Predictor of Physical and Verbal Aggression in Bar Conflicts

BACKGROUND

Young adult use of alcohol mixed with caffeinated energy drinks (AmEDs) has been globally linked with increased odds of interpersonal aggression, compared with the use of alcohol alone. However, no prior research has linked these behaviors at the event level in bar drinking situations. The present study assessed whether AmED use is associated with the perpetration of verbal and physical aggression in bar conflicts at the event level.

METHODS

In Fall 2014, a community sample of 175 young adult AmED users (55% female) completed a web survey describing a recent conflict experienced while drinking in a bar. Use of both AmED and non-AmED alcoholic drinks in the incident were assessed, allowing calculation of our main predictor variable, the proportion of AmEDs consumed (AmED/total drinks consumed). To measure perpetration of aggression, participants reported on the occurrence of 6 verbal and 6 physical acts during the bar conflict incident.

RESULTS

Linear regression analyses showed that the proportion of AmEDs consumed predicted scores for perpetration of both verbal aggression (β = 0.16, p < 0.05) and physical aggression (β = 0.19, p < 0.01) after controlling for gender, age, sensation-seeking and aggressive personality traits, aggressive alcohol expectancies, aggressogenic physical and social bar environments, and total number of drinks.

CONCLUSIONS

Results of this study suggest that in alcohol-related bar conflicts, higher levels of young adult AmED use are associated with higher levels of aggression perpetration than alcohol use alone and that the elevated risk is not attributable to individual differences between AmED users and nonusers or to contextual differences in bar drinking settings. While future research is needed to identify motivations, dosages, and sequencing issues associated with AmED use, these beverages should be considered a potential risk factor in the escalation of aggressive bar conflicts.

A systematic review of evidence to inform HIV prevention interventions among men who have sex with men in Europe

An estimated 42% of all newly diagnosed HIV cases in Europe in 2013 were transmitted during sex between men. This review was performed to identify and describe studies evaluating the efficacy and effectiveness of HIV prevention interventions among men who have sex with men (MSM), in relation to implementation data from European settings. A systematic search was performed individually for 24 interventions.Data were extracted from studies including efficacy or implementation data from European settings,appraised for efficacy, implementation and plausibility, and assigned a grade (1-4) according to the Highest Attainable Standard of Evidence (HASTE)framework. Four interventions (condom use, peer outreach,peer-led groups, and using universal coverage of antiretroviral treatment and treatment as prevention)were assigned the highest HASTE grade, 1. Another four interventions were assigned 2a for probable recommendation, including voluntary counseling and testing for HIV, using condom-compatible lubricant,using post-exposure prophylaxis, and individual counselling for MSM living with HIV. In addition, seven interventions were assigned a grade of 2b, for possible recommendation. Encouragingly, 15 interventions were graded to be strongly, probably or possibly recommended.In the relatively resource-rich European setting, there is an opportunity to provide global leadership with regard to the regional scale-up of comprehensive HIV prevention interventions for MSM.

Everyday exposure to benevolent sexism and condom use among college women

Understanding factors related to condom use is critical in reducing the spread of sexually transmitted infections (STIs), especially for women, who are disproportionately affected by many STIs. Extant work has shown that perceived sexism is one such factor associated with lower levels of condom use among women, but has yet to explore whether benevolent sexism in particular-a subtle form of sexism that often goes unnoticed and increases cognitions and behaviors consistent with traditional female gender roles (e.g., sexual submissiveness)-relates negatively to this safer-sex practice. The present research tested this possibility and, in addition, examined whether relational sex motives, which reflect a desire to engage in sex as a means to foster partners' sexual satisfaction, mediated the relation between benevolent sexism and condom use. During the spring of 2011, female college students (N = 158) reported how often they experienced benevolent sexism in their daily lives and, 2 weeks later, their relational sex motives and condom use. Supporting hypotheses results indicated that greater exposure to benevolent sexism was associated significantly with lower condom use, and that relational sex motives mediated this relationship. We discuss implications for women's well-being, including ways to promote safer sex in the face of sexism.

The accuracy of patient-reported measures for GI symptoms: a comparison of real time and retrospective reports

BACKGROUND

Obtaining accurate information about gastrointestinal (GI) symptoms is critical to achieving the goals of clinical research and practice. The accuracy of patient data is especially important for functional GI disorders (e.g., IBS) whose symptoms lack a biomarker and index illness severity and treatment response. Retrospective patient-reported data are vulnerable to forgetting and various cognitive biases whose impact has not been systematically studied in patients with GI disorders. The aim of this study was to document the accuracy of patient-reported GI symptoms over a reporting period (1 week) most representative of the time frame used in research and clinical care.

METHODS

Subjects were 273 Rome III-diagnosed IBS patients (mean age = 39 years, 89% F) who completed end of day GI symptom ratings for 7 days using an electronic diary. On Day 8, Subjects recalled the frequency and/or intensity of IBS symptoms over the past 7 days. Reports were then compared against a validation criterion based on aggregated end of day ratings.

KEY RESULTS

At the group level, subjects recalled most accurately abdominal pain and urgency intensity at their worst, urgency days, and stool frequency. When data were analyzed at the individual level, a subgroup of subjects had difficulty recalling accurately symptoms that showed convergence between recall and real time reports at the group level.

CONCLUSIONS & INFERENCES

Although many patients' recollection for specific GI symptoms (e.g., worst pain, stool frequency) is reasonably accurate, a non-trivial number of other symptoms (e.g., typical pain) are vulnerable to distortion from recall biases that can reduce sensitivity of detecting treatment effects in clinical and research settings.

Efficacy of a group-based multimedia HIV prevention intervention for drug-involved women under community supervision: project WORTH

IMPORTANCE

This study is designed to address the need for evidence-based HIV/STI prevention approaches for drug-involved women under criminal justice community supervision.

OBJECTIVE

We tested the efficacy of a group-based traditional and multimedia HIV/STI prevention intervention (Project WORTH: Women on the Road to Health) among drug-involved women under community supervision.

DESIGN, SETTING, PARTICIPANTS, AND INTERVENTION

We randomized 306 women recruited from community supervision settings to receive either: (1) a four-session traditional group-based HIV/STI prevention intervention (traditional WORTH); (2) a four-session multimedia group-based HIV/STI prevention intervention that covered the same content as traditional WORTH but was delivered in a computerized format; or (3) a four-session group-based Wellness Promotion intervention that served as an attention control condition. The study examined whether the traditional or multimedia WORTH intervention was more efficacious in reducing risks when compared to Wellness Promotion; and whether multimedia WORTH was more efficacious in reducing risks when compared to traditional WORTH.

MAIN OUTCOMES AND MEASURES

Primary outcomes were assessed over the 12-month post-intervention period and included the number of unprotected sex acts, the proportion of protected sex acts, and consistent condom use. At baseline, 77% of participants reported unprotected vaginal or anal sex (n = 237) and 63% (n = 194) had multiple sex partners.

RESULTS

Women assigned to traditional or multimedia WORTH were significantly more likely than women assigned to the control condition to report an increase in the proportion of protected sex acts (β = 0.10; 95% CI = 0.02-0.18) and a decrease in the number of unprotected sex acts (IRR = 0.72; 95% CI = 0.57-0.90).

CONCLUSION AND RELEVANCE

The promising effects of traditional and multimedia WORTH on increasing condom use and high participation rates suggest that WORTH may be scaled up to redress the concentrated epidemics of HIV/STIs among drug-involved women in the criminal justice system.

TRIAL REGISTRATION

ClinicalTrials.gov NCT01784809.

Correlates of human papillomavirus vaccination among female university students

Human papillomavirus (HPV) is the most frequently occurring sexually transmitted infection in the United States, but only one third of adolescent girls have received the HPV vaccine (Centers for Disease Control and Prevention [CDC], 2012; Committee on Infectious Diseases, 2012). Understanding correlates of vaccination behavior among young women has important implications for health care delivery and public service messages targeting HPV vaccination. Female college students (N = 313) completed web-based surveys during their sophomore (second) year of college, fall 2008. Surveys included questions about HPV vaccination, demographic factors (ethnicity/race, socioeconomic status [SES]), individual characteristics (romantic relationship status, grade point average, religiosity), and sexual behavior. Lifetime HPV vaccination was reported by 46.5% of participants. Being African American/Black was associated with a lower likelihood of vaccination. Having a mother with more education, adhering to religious teachings about sex-related principles, and having engaged in recent penetrative sex were associated with a higher likelihood of vaccination. Health care providers should consider young women to be an important group for HPV vaccine education and catch-up, particularly for African American/Black young women and young women from lower SES backgrounds. Providing vaccine education and access to young women before they become sexually active is critical.

Validity of behavioral measures as proxies for HIV-related outcomes

Over the last 30 years, expectations for the quality, validity, and objectivity of the outcome measures used to assess the impact of behavior change interventions related to HIV have steadily increased. At this point (mid-2014 at this writing), biologic evidence or biomarkers of the incidence of HIV and other sexually transmitted infections in a target population is clearly preferable to self-reports of behavior. This kind of evidence is, however, much more expensive to collect than participants' reports of behavior change (eg, increased condom use, reduced substance use or abstinence from substance use, and high levels of medication adherence). In addition, although potentially less subject to reporting bias, biomarkers and biologic outcomes have their own flaws. In this article, we review the literature on the validity of self-reports of outcomes most relevant to HIV behavior change interventions, sexual behavior (ever having had sex and condom use), substance use, and medication adherence. We note the extent to which they may be adequate outcome measures without biologic data, and the conditions under which they may be most likely to be sufficient. We also argue, like many others, that where possible, both self-report and biologic measures should be collected.

Parental support and adolescent motivation for dieting: the Self-Determination Theory perspective

This article focuses on parents' role in overweight adolescents' motivation to diet and successful weight loss. The study employed Self-Determination Theory (SDT) as the theoretical framework (Deci & Ryan, 2000, 2011). Ninety-nine participants (ages 20-30) who had been overweight during adolescence according to their Body Mass Index (BMI mean = 25, SD = 1.6), completed retrospective questionnaires about their motivation to diet and their parents' behavior in the context of dieting. Findings from a structural equation modeling analysis suggested that participants who viewed their parents' as more need-supportive demonstrated more autonomous motivation to diet, which, in turn, contributed to their successful weight loss. The findings highlight the importance of parental support of adolescents' psychological needs in the quality of their motivation to diet. This is an important insight for parents and professionals who aim to encourage more constructive parent involvement in adolescents' dieting and well-being.

Religiosity and sexual risk behaviors among African American cocaine users in the rural South

PURPOSE

Racial and geographic disparities in human immunodeficency virus (HIV) are dramatic and drug use is a significant contributor to HIV risk. Within the rural South, African Americans who use drugs are at extremely high risk. Due to the importance of religion within African American and rural Southern communities, it can be a key element of culturally-targeted health promotion with these populations. Studies have examined religion's relationship with sexual risk in adolescent populations, but few have examined specific religious behaviors and sexual risk behaviors among drug-using African American adults. This study examined the relationship between well-defined dimensions of religion and specific sexual behaviors among African Americans who use cocaine living in the rural southern United States.

METHODS

Baseline data from a sexual risk reduction intervention for African Americans who use cocaine living in rural Arkansas (N = 205) were used to conduct bivariate and multivariate analyses examining the association between multiple sexual risk behaviors and key dimensions of religion including religious preference, private and public religious participation, religious coping, and God-based, congregation-based, and church leader-based religious support.

FINDINGS

After adjusting individualized network estimator weights based on the recruitment strategy, different dimensions of religion had inverse relationships with sexual risk behavior, including church leadership support with number of unprotected vaginal/anal sexual encounter and positive religious coping with number of sexual partners and with total number of vaginal/anal sexual encounters.

CONCLUSION

Results suggest that specific dimensions of religion may have protective effects on certain types of sexual behavior, which may have important research implications.

The Moderating Effect of Marijuana Use on the Relationship between Delinquent Behavior and HIV Risk among Adolescents in Foster Care

Adolescents in foster care experience mental health and substance use problems that place them at risk for HIV, yet the exact nature of the relationship remains unclear. This study examined the co-occurring influences of mental health problems and substance use on HIV risk and determined whether substance use moderated the effect of mental health problems on HIV risk behaviors among adolescents in foster care. Regression analyses of cross-sectional data collected through structured interviews with 334 adolescents, aged 15-18 years, determined which mental health problems and substances increased HIV risk behaviors. Adolescents with delinquency and anxiety/depression engaged in significantly more HIV risk behaviors than their counterparts, controlling for race, gender, and type of childhood abuse. Further, any marijuana use significantly moderated the effects of delinquent behaviors on HIV risk, differentially increasing HIV risk among those who engaged in delinquent behaviors.

Comparisons of reported sexual behaviors from a retrospective survey versus a prospective diary in the Botswana Defence Force

This study compares self-reported sexual behaviors from a retrospective survey and a prospective diary among Botswana Defence Force (BDF) personnel. One hundred sixty-one male participants, aged 18-30, completed two weekly prospective diaries and a retrospective survey querying them about behaviors reported during the same time frame as the diaries. Most reported behaviors were similar between the two data collection methods. However, there was low agreement for reporting sex with a spouse and exchanging material goods for sex with a casual partner; frequency of sex and condom use rates (CURs) among married participants also differed. When comparing survey condom use frequencies to diary CURs, the level of agreement diminished from the always to occasionally condom use categories. Inconsistencies in reporting may be due to the frequency of the sexual behavior, question sensitivity, the data collection setting, and the interpretation of response categories. Further research is needed to improve accurate reporting of sexual behaviors.

Behavioral risk assessment in HIV Vaccine Trials Network (HVTN) clinical trials: a qualitative study exploring HVTN staff perspectives

In HIV vaccine trials, the collection and analysis of participant behavior data associated with risk of acquiring HIV-infection is important for a number of reasons. Although the rationale for behavioral risk assessment in HIV vaccine clinical trials is clear, consistent collection of behavioral data over time and across protocols has been challenging for the HIV Vaccine Trials Network (HVTN). Integrating biomedical and behavioral research within the same preventive vaccine clinical trial has proven difficult. The HVTN conducted an internal landscape analysis to: (1) evaluate the challenges of behavioral risk assessment in HIV vaccine trials and observational studies; (2) explore the impact of the Step Study on behavioral risk assessment measures; and (3) identify strategies to overcome existing challenges and improve the quality of data resulting from behavioral risk analysis. These analyses of behavioral risk within the HVTN revealed several challenges and recommendations for improved behavioral risk data collection in future protocols. The recommendations for improvement include: (1) establishment of protocol-specific behavioral risk working groups that include social and behavioral experts; (2) provision of behavioral rationale and objectives to the development team; (3) creation of a template for geographic- and population-specific assessment of low and high risk behaviors; and (4) pilot testing of behavioral risk assessments. Results also underscored the need for routinely conducted analyses of behavioral data.

Condom use with serious and casual heterosexual partners: findings from a community venue-based survey of young adults

Given the racial/ethnic disparities that characterize STI trends and recent increases in heterosexually transmitted HIV infection in the US, an understanding of factors underlying condom use among young adults in minority communities is vitally important. To this end, this paper presents findings from a community venue-based survey examining the influence of motivations, heuristics, and relationship factors on condom behaviors with serious and casual heterosexual partners in a sample of urban African American and Puerto Rican males and females ages 18-25 (n = 380). Condom use rates at time of last sex were considerably higher with casual partners (n = 87) than with serious (n = 313) partners, 77.9% vs. 38.7%. While dual pregnancy/STI prevention was the most frequently cited reason for use at last sex with casual partners, pregnancy prevention was the most frequently cited reason for use with serious partners. Bivariate conditional logistic regression analyses found two factors to be associated with condom use at last sex with casual partners: use at first sex with the partner and belief that neighborhood peers worried some/a lot about HIV. In contrast, such factors as condom heuristics (e.g., nonuse symbolizes trust), contraceptive status, and markers of emotional intimacy were associated with condom use with serious partners in both bivariate and multivariable analyses.

The effect of interview method on self-reported sexual behavior and perceptions of community norms in Botswana

Since self-reports of sensitive behaviors play an important role in HIV/AIDS research, the accuracy of these measures has often been examined. In this paper we (1) examine the effect of three survey interview methods on self-reported sexual behavior and perceptions of community sexual norms in Botswana, and (2) introduce an interview method to research on self-reported sexual behavior in sub-Saharan Africa. Comparing across these three survey methods (face-to-face, ballot box, and randomized response), we find that ballot box and randomized response surveys both provide higher reports of sensitive behaviors; the results for randomized response are particularly strong. Within these overall patterns, however, there is variation by question type; additionally the effect of interview method differs by sex. We also examine interviewer effects to gain insight into the effectiveness of these interview methods, and our results suggest that caution be used when interpreting the differences between survey methods.

Accuracy of self-reported sun exposure and sun protection behavior

The objective of this study was to compare the accuracy of self-reported skin cancer risk outcome measures proposed as standards by prevention experts to aggregated estimates of behavior from weekly diaries. Weekly electronic diaries of ultraviolet radiation (UVR) behaviors, initially validated by comparison with daily electronic diaries, were used to assess the accuracy of commonly used end-of-summer self-reported measures among 250 adults. Results revealed low biases, and good correspondence between simple open-ended self-reported estimates of days outside, hours outside, sunbathing days and hours, and days outside when not protected by either sunscreen, long-sleeved shirts, hats, or shade. Rating scale measures commonly used in the current literature and those recently recommended as standards by a workshop of experts showed evidence of being non-interval and lacking precision for more frequent behavior (e.g., >1 h sun exposure daily). These data indicated that open-ended frequency self-reports of skin cancer risk behaviors that follow procedures designed to increase accuracy were reliable over a summer-long period.

Young women's adolescent experiences of oral sex: relation of age of initiation to sexual motivation, sexual coercion, and psychological functioning

Research examining oral sex during adolescence tends to investigate only potential negative consequences without considering its place in sexual development or distinctions between cunnilingus and fellatio. Using retrospective reports from 418 undergraduate women, we examined the relations among young women's ages of initiation of both cunnilingus and fellatio and sexual motives, experiences of sexual coercion, and indicators of psychological functioning. Age at cunnilingus initiation was unrelated to sexual coercion or psychological functioning; however it was related to engaging in sex for personal stimulation and gratification (personal drive motive) and to feel agentic, assertive, and skillful (power motive). Age at fellatio initiation was related to feelings of inferiority compared to others and a devaluing of the self (interpersonal sensitivity). Findings challenge the unilateral assumption that all adolescent sexual activity is negative and indicate the need for future research distinguishing between cunnilingus and fellatio.

The effect of body weight on adolescent sexual activity

Recent research suggests that overweight females suffer penalties in the labor and marriage markets, while overweight males do not. This study explores whether similar gender differences in the effect of body weight exist in what Cawley et al. (2006) labeled 'the adolescent sex market'. Drawing on data from the National Longitudinal Study of Adolescent Health, we use fixed effects and instrumental variables identification strategies to estimate the relationship between body weight and sexual activity. We find evidence that increased body weight lowers the probability that female adolescents become sexually active. In contrast, there is little evidence of a causal relationship between body weight and sexual activity for male adolescents.

Religion versus ethnicity as predictors of unprotected vaginal intercourse among young adults

BACKGROUND

Young adults in North America are at increasing risk for contracting HIV and sexually transmissible infections (STI). Racial differences in HIV or STI risk are well documented, but other cultural and demographic factors contributing to HIV or STI risk are poorly understood. Although religion may play an important role in sexual behaviour, little research has explored its association with sexual attitudes, beliefs and practices. The present study examined how ethnicity, religion, HIV knowledge and attitudes, and other demographic factors are associated with engaging in unprotected vaginal intercourse (UVI) in a diverse sample of unmarried young adults.

METHODS

A cross-sectional study of 666 unmarried university students was conducted from 2005 to 2007, with participants completing an anonymous questionnaire on sexual attitudes and health for course credit.

RESULTS

Approximately 50% of the respondents had engaged in any vaginal intercourse and 32.2% had engaged in UVI in the past 6 months. Multivariable analyses showed that increasing age, being in a relationship for more than 6 months, greater HIV knowledge, stronger attitudes supporting the use of condoms, and religion (but not ethnicity) were associated with engaging in UVI. Among the sexually active subset of the sample (n=332), religion was the only predictor of engaging in UVI.

CONCLUSION

Ethnicity, which is often considered an important variable in sexual health research, does not appear to be associated with UVI when taking into account other demographic variables, particularly religion. Consideration of religion may be important in devising HIV prevention interventions, in order to implement them in accordance with particular religious beliefs.

A behavioral decision model testing the association of marijuana use and sexual risk in young adult women

We created a model conceptualizing sexual risk as a series of discrete event-specific behavioral decisions and tested the hypothesis that marijuana use was associated with increased sexual risk-taking. Three hundred eight marijuana-using women aged 18-24 completed a 90-day time-line-follow-back to assess sexual behaviors and marijuana use. A sequential logit model estimated the effect of marijuana use on the likelihood of being sexually active, partner type when sexually active, and condom nonuse conditional on partner type. Participants had a mean age of 20.4 years, with 67% Caucasian. Marijuana use was associated with an increased likelihood of being sexually active (OR 1.6; 95% CI 1.33, 1.93) and with condom nonuse when sexually active with casual partners (OR 2.58; 95% CI 1.1, 6.09). This behavioral decision model identified where marijuana use affected sexual risk, and suggests where interventions designed to reduce risk may have an impact.

Alcohol, conscientiousness and event-level condom use

OBJECTIVES

Alcohol impairs judgement and could be causally implicated in sexual risk taking. However, meta-analytic studies do not find an association between alcohol use and unprotected sexual intercourse at the event level, where both behaviours refer to the same point in time. Associations between personality traits and sexual risk taking have been replicated across several studies. Traits may be better conceptualized as independent risk factors, where alcohol use mediates the association between personality and condom use. The objective of our study was to determine the direct and indirect effects connecting big five personality traits with condom use, potentially mediated through alcohol use during the most recent sexual encounter.

DESIGN

A sample of community-dwelling adults (N= 190) completed measures of big five personality traits and a detailed assessment of event-level sexual behaviour and alcohol use.

RESULTS

In regression model adjusting for known confounding factors, including oral contraceptive use, partner type, and hazardous drinking patterns, one standard deviation increase in conscientiousness was associated with a 1.14-fold increase in the odds of using a condom with most recent sexual partner (p= .04). Repeating the analysis using zero-inflated regression for estimated blood alcohol concentration (eBAC) values revealed an association between conscientiousness and eBAC (p= .002). There was no association between alcohol and condom use in either analysis.

CONCLUSIONS

The results illustrate that personality traits are strong independent risk factors for sexual risk taking and eBAC values during sexual events, and both should be incorporated into research designs. Future research should evaluate specific facets of conscientiousness, and whether eBAC mediates the association between personality and condom use in other samples. The possibility of tailoring interventions to personality traits is discussed.

Concordant and discordant reports on shared sexual behaviors and condom use among African American serodiscordant couples in four cities

This paper examines the concordance of reported shared sexual behaviors, including condom use, among 535 heterosexual, African American, serodiscordant couples and identifies factors that might predict discordant reports. Percentages of agreement, Kappa and McNemar's statistics and conditional probability indices are used to measure concordance. Logistic regression models identify predictors of couples' discordant sexual reports. Analyses revealed Kappa statistics for reporting anal sex, fellatio and cunnilingus indicated moderate to substantial agreement. The effects of demographics and the couples' relationship contexts on concordance of reported sexual behaviors were found to vary somewhat by gender and type of sexual behavior. Findings showed that concordance of reporting between the couples was consistent for the past 90 and 30 days. Findings from this paper provide new scientific insights into the knowledge base of self-reported couples' data and suggest that these data can be used to evaluate their accuracy and serve as a proxy for validity.

Comparison of daily and retrospective reports of vaginal sex in heterosexual men and women

This study examined the agreement between daily and retrospective reports of vaginal sex over a two-month period in a sample of 376 heterosexually active men and women. We also examined whether gender, age, or method of daily data collection (self-administered vs. interviewer administered) were related to agreement between daily and retrospective reports. Both counts and categorical measures of frequency of the behaviors were examined. There were no gender, age, or data collection method effects. When measured as a count, participants reported more instances of vaginal intercourse in the retrospective reports than on the daily reports. In contrast, comparison of retrospective categorical measures of frequency to daily reports showed considerable variability. Possible reasons for the over-reporting of counts of vaginal sex in retrospective reports are explored.

HIV risk behavior self-report reliability at different recall periods

Few studies have investigated the optimal length of recall period for self-report of sex and drug-use behaviors. This meta-analysis of 28 studies examined the test-retest reliability of three commonly used recall periods: 1, 3, and 6 months. All three recall periods demonstrated acceptable test-retest reliability, with the exception of recall of needle sharing behaviors and 6-months recall of some sex behaviors. For most sex behaviors, a recall period of 3 months was found to produce the most reliable data; however, 6 months was best for recalling number of sex partners. Overall, shorter periods were found to be more reliable for recall of drug-use behaviors, though the most reliable length of recall period varied for different types of drugs. Implications of the findings and future directions for research are discussed.

Behavioral and relational contexts of adolescent desire, wanting, and pleasure: Undergraduate women's retrospective accounts

Studies of adolescent female sexuality often focus on coitus to the exclusion of noncoital behaviors, the relational context of sexual interactions, and adolescent women's subjective perceptions of their experiences. In this study, 38 undergraduate women's retrospective accounts of their adolescent heterosexual experiences were examined. Generalized estimating equation models were used to test the relation of diverse heterosexual behaviors and relationship types to participants' subjective perceptions of desire, wanting, and pleasure. Of the sexual behaviors, coitus was the strongest predictor of participants' subjective perceptions. Compared to coitus, erotic touching, manual stimulation, and fellatio were significantly less predictive; there were no differences between coitus and cunnilingus or coitus and kissing. Of the relationships (serious, dating, "friends with benefits" [FWBs], and "hookups"), FWBs was the strongest predictor of participants' desire, wanting, and pleasure; in comparison, hookups were significantly less predictive. These findings offer insight into the sexual behaviors and preferences of young women, as well as distinctions between types of non-romantic sexual relationships.

Test-retest reliability of a sexual behavior interview for men residing in Brazil, Mexico, and the United States: the HPV in Men (HIM) Study

Understanding the natural history of sexually transmitted infections requires the collection of data on sexual behavior. However, there is concern that self-reported information on sexual behavior may not be valid, especially if study participants are culturally and linguistically distinct. The authors completed a test-retest reliability study of 1,069 men recruited in Brazil, Mexico, and the United States in 2005 and 2006. All of the men completed the same computer-assisted self-interview approximately 3 weeks apart. Refusal rates, kappa coefficients, and intraclass correlation coefficients were calculated for the full sample and by country, age, and lifetime number of female sex partners. Reliability coefficients for each study site and the combined population were high for almost all questions. With few exceptions, the authors found high test-retest reliability with a computer-assisted self-interview on sexual behavior used in 3 culturally and linguistically distinct countries.

Sexual behaviors and attitudes and ethnic identity during college

This study examined ethnic differences in sexual behaviors and attitudes, and associations between ethnic identity commitment and sexual behaviors and attitudes. African American (32%), Latino American (29%), and European American (39%) first-year college students (N = 434; 52% female) completed surveys about their sexual behaviors (number of partners, condom use, and alcohol use before intercourse) and attitudes (conservative attitudes, condom-related beliefs, and fear of AIDS) and ethnic identity commitment. Analyses of covariance and hierarchical linear regressions were performed. Among the three groups, Latino Americans reported riskier condom-related behaviors and attitudes, whereas European Americans were less fearful of AIDS. Ethnic identity commitment was a protective factor against risky attitudes regardless of ethnicity. For sexual behaviors, however, ethnic identity served as a protective factor only for European Americans. This study contributes to the understanding of adolescents' sexuality during college and the role of ethnic identity in their sexual experiences.

Patterns and correlates of sexual activity and condom use behavior in persons 50-plus years of age living with HIV/AIDS

This study characterized rates of sexual activity and identified psychosocial and behavioral correlates of sexual activity and condom use in a metropolitan sample of 290 HIV-infected adults 50-plus years of age. Thirty-eight percent of participants were sexually active in the past three months, 33% of whom had at least one occasion of anal or vaginal intercourse that was not condom protected. Rates and correlates of sexual activity and condom use differed between gay/bisexual men, heterosexual men, and heterosexual women. In the past three months, 72% of heterosexual men were sexually active compared to only 36% of gay/bisexual men and 21% of heterosexual women. However, among sexually active persons, only 27% of heterosexual men reported inconsistent condom use compared to 37% of gay/bisexual men and 35% of heterosexual women. As the number of older adults living with HIV/AIDS in the U.S. continues to increase, age-appropriate secondary risk-reduction interventions are urgently needed.

Comparing Multiple Sensitivities and Specificities with Different Diagnostic Criteria: Applications to Sexual Abuse and Sexual Health Research

When comparing sensitivities and specificities from multiple diagnostic tests, particularly in biomedical research, the different test kits under study are applied to groups of subjects with the same disease status for a disease or medical condition under consideration. Although this process gives rise to clustered or correlated test outcomes, the associated inference issues are well recognized and have been widely discussed in the literature. In mental health and psychosocial research, sensitivity and specificity have also been widely used to study the reliability of instrument for diagnosing mental health and psychiatric conditions and assessing certain behavioral patterns. However, unlike biomedical applications, outcomes are often obtained under varying reference standards or different diagnostic criteria, precluding the application of existing methods for comparing multiple diagnostic tests to such a research setting. In this paper, we develop a new approach to address these problems (including that of missing data) by extending recent work on inference using inverse probability weighted estimates. The approach is illustrated with data from two studies in sexual abuse and health research as well as a limited simulation study, with the latter used to study the performance of the proposed procedure.

Personal and partner measures in stages of consistent condom use among African-American heterosexual crack cocaine smokers

Participants' personal condom use measures and those of their last sex partner's were examined in five stages of change for consistent condom use among 449 urban sexually active, heterosexual, African-American crack smokers. The measures included participants' personal and their last sex partner's perceived responsibility, personal and perceived negative attitudes, and participants' self-efficacy to use condoms. The relationships between the measures and the stages were examined using analyses of variance and multivariate logistic regression. Over 90% of participants did not use condoms, consistently. Two-thirds of the inconsistent users were in the precontemplation stage. The rest were equally divided between the contemplation and preparation stages. Personal responsibility outperformed other measures in initial intention to become a regular condom user; partner's perceived responsibility dominated continued intention and actual consistent condom use. Negative attitudes and self-efficacies had strong relationships to the stages of consistent condom use in univariate analyses but these relationships became substantially weaker when the responsibility, attitude, and self-efficacy concepts were entered simultaneously into multivariate analyses.

Agreement of daily diary and retrospective measures of condom use

This study compares condom use reported two ways. 251 heterosexual participants (63% female) reported condom use on a prospective daily diary and on a retrospective questionnaire. Proportion of condom use with vaginal sex was calculated from the diary data and contrasted with retrospective categories. Responses were consistent for some participants, especially those who used condoms never or always, but responses from others showed considerable variability. Participants with few sexual encounters were more likely than those with more encounters to use "never" and "every time" endpoints. The results call into question the way participants interpret the meaning of retrospective categories.