Richard A. Crosby

Social capital, poverty, and income inequality as predictors of gonorrhoea, syphilis, chlamydia and AIDS case rates in the United States

Background: Social capital has been related to a number of important public health variables such as child welfare, mortality, and health status. However, the relation of social capital to infectious diseases has received relatively little attention. The relation of social capital to health measures is often posited to be related to the key societal variables of poverty and income inequality. Therefore, any exploration of the correlation between social capital and infectious diseases should also include examination of the association with poverty and income inequality. Objective: This study examined the state level association between social capital, poverty, income inequality, and four infectious diseases that have important public health implications given their long term sequelae: gonorrhoea, syphilis, chlamydia, and AIDS. Method: A state level, correlational analysis (including bivariate linear correlational analysis, and multivariate linear stepwise regression analysis) was carried out. 1999 state level rates of gonorrhoea, syphilis, chlamydia, and AIDS were the main outcome measures. Results: In bivariate analyses, poverty was significantly correlated with chlamydia; income inequality was significantly correlated with chlamydia and AIDS case rates; and social capital was significantly correlated with all outcome measures. In stepwise multiple regression analyses, social capital was always the strongest predictor variable. Conclusions: These results suggest that social capital is highly predictive of at least some infectious diseases. The results indicate the need for further research into this relation, and suggest the potential need for structural interventions designed to increase social capital in communities.

Psychosocial predictors of HIV-associated sexual behaviors and the efficacy of prevention interventions in adolescents at-risk for HIV infection: what works and what doesn't work?

The HIV epidemic among adolescents in the United States is inherently tied to individual, psychosocial, and cultural phenomena. Expanding intervention development and implementation to incorporate a broader spectrum of determinants of adolescents’ sexual risk for sexually transmitted infections (STIs)/HIV acquisition may provide an opportunity to prevent disease transmission more effectively. To address the STI/HIV prevention needs of adolescents, we highlight research assessing adolescents’ sexual risk behavior and place the findings in the context of the diverse array of psychosocial factors influencing adolescents. This synthesis provides an opportunity to examine why adolescents engage in risky sexual behavior and to review the effectiveness of theory-based prevention programs. Subsequently, we offer recommendations for improving future programs aimed at reducing the incidence of STI/HIV infection among adolescents. STIs = sexually transmitted infections; AIDS = acquired immunodeficiency disease syndrome; SiHLE = Sistas Informing, Healing, Living and Empowering.

Sexual risk behaviors associated with having older sex partners: a study of black adolescent females.

Background Volunteer black adolescent females from neighborhoods characterized by high rates of unemployment, substance abuse, violence, and sexually transmitted disease were studied to determine the frequency of condom use and unprotected vaginal sex with steady, older partners during various time periods over the previous 6 months. Goal To examine associations between having male sex partners who were typically older (by at least 2 years) and adolescent females’ sexually transmitted disease (STD)/HIV–associated sexual risk behaviors. Study Design In this cross-sectional study, 522 sexually active black adolescent females completed a questionnaire and a structured interview, of which a portion assessed the age difference between the adolescents and their typical sex partners. The adolescents’ ages, length of relationship and their use of hormonal contraception were identified as covariates. Adjusted odds ratios (AOR), their 95% confidence intervals, and respective P values were calculated to detect significant associations. Results Sixty-two percent of the adolescents reported their typical sex partners were at least 2 years older. These adolescents were more likely to report never using condoms during the most recent sexual encounter (AOR = 2.0), during the last five sexual encounters (AOR = 2.0), and during the past month (AOR = 2.2). Similarly, having older partners was associated with greater odds of reporting any unprotected vaginal sex in the past 30 days (AOR = 1.7) or the past 6 months (AOR = 1.5). Conclusion Our findings suggest that many adolescent females have sex partners who are at least 2 years older and that their relationship dynamics do not favor the adoption and maintenance of behavior protective against STD or HIV infection. Prevention programs could include training designed to help adolescent females overcome barriers to safer sex with older male partners.

Condom use errors and problems among college men

Background An essential yet understudied aspect of condom use is whether they are used correctly. Goal The goal of the study was to comprehensively evaluate condom use errors and problems reported by heterosexual college men (N = 158). Study Design A cross-sectional survey, involving a 3-month recall period, was conducted. Results Of the 158 participants, 60% did not discuss condom use with their partner before sex; 42% reported they wanted to use condoms but did not have any available; 43% put condoms on after starting sex; 15% removed condoms before ending sex; 40% did not leave space at the tip; 30% placed the condom upside down on the penis and had to flip it over; and 32% reported losing erections in association with condom use. Nearly one-third reported breakage or slippage during sex. Few participants reported errors related to lubrication, storage, and reusing condoms. Higher error scores were associated with breakage/slippage rather than with consistency of condom use. Conclusion Condom use errors were common, and error scores were associated with breakage and slippage. Increasing the focus on correcting potential user failures may be an important public health strategy.

Self-Concept and Adolescents′ Refusal of Unprotected Sex: A Test of Mediating Mechanisms Among African American Girls

During adolescence, girls form self-concepts that facilitate the transition to adulthood. This process may entail engaging in risky sexual behaviors resulting in STD infection and pregnancy. This study assessed the relation between self-concept and unwanted, unprotected sex refusal among 335 African American adolescent girls. The second aim was to determine whether attributes of partner communication about sex would act as a mediating mechanism on this hypothesized relationship. These assessments were made within the context of several theoretical models (social cognitive theory and theory of gender and power). Self-concept was composed of self-esteem, ethnic identity, and body image, whereas attributes of partner communication about sex was conceptualized as frequency of communication, fear of condom use negotiation, and self-efficacy of condom use negotiation. Structural equation modeling was used to analyze data. The results showed that self-concept was associated with partner communication attributes about sex, which in turn, was associated with frequency of unprotected sex refusal. The hypothesized mediating role of partner communication was also supported. STD-HIV preventive interventions for this population may be more effective if they target self-concept as opposed to only self-esteem, incorporate an Afrocentric approach, and focus on enhancing several attributes of partner communication about sex.

Condom use errors and problems: a global view

BACKGROUND Significantly more research attention has been devoted to the consistency of condom use, with far fewer studies investigating condom use errors and problems. The purpose of this review was to present the frequency of various condom use errors and problems reported worldwide. METHODS A systematic literature search was conducted for peer-reviewed articles, published in English-language journals between 1995 and 2011. RESULTS Fifty articles representing 14 countries met criteria for inclusion. The most common errors included not using condoms throughout sex, not leaving space at the tip, not squeezing air from the tip, putting the condom on upside down, not using water-based lubricants and incorrect withdrawal. Frequent problems included breakage, slippage, leakage, condom-associated erection problems, and difficulties with fit and feel. Prevalence estimates showed great variation across studies. Prevalence varied as a function of the population studied and the period assessed. CONCLUSION Condom use errors and problems are common worldwide, occurring across a wide spectrum of populations. Although breakage and slippage were most commonly investigated, the prevalence of other condom use errors and problems found in this review were substantially higher. As a framework for understanding the role of condom errors and problems in inadequate protection, we put forward a new model: the Condom Use Experience model. This model can be used to generate testable hypotheses for future research. Addressing condom use errors and problems in research and interventions is crucial to closing the gap between the perfect use and typical use of condoms.

Condom Use and Correlates of African American Adolescent Females’ Infrequent Communication with Sex Partners about Preventing Sexually Transmitted Diseases and Pregnancy

This study of 522 African American female adolescents, ages 14 to 18, investigated associations between condom use and infrequently communicating with sex partners about sexually transmitted diseases (STDs) and pregnancy prevention. Correlates of infrequent communication were identified. Sexually active adolescents were recruited from schools and adolescent medicine clinics in low-income neighborhoods of Birmingham, Alabama. Adolescents completed a self-administered survey and face-to-face interview. Communication frequency was assessed using a five-item scale. Infrequent communication was significantly associated with lower odds of condom use. Multivariate correlates of infrequent communication were less frequent communication with parents about STD/pregnancy prevention, recent sex with a nonsteady partner, low perceived ability to negotiate condom use and fear of this negotiation, and low motivation to use condoms. Given the importance of partner communication in promoting safer sex behaviors, STD and pregnancy prevention programs may benefit adolescents by addressing the identified psychosocial correlates of infrequent communication with their partners.

Self-Esteem and Theoretical Mediators of Safer Sex Among African American Female Adolescents: Implications for Sexual Risk Reduction Interventions:

Theories of health behavior posit that change is accomplished by modifying factors deemed as mediators. A set of mediators from several theoretical models used in sexual risk reduction programs was assessed among a sample of 522 African American female adolescents. The goal was to determine whether self-esteem was associated with sexually transmitted disease (STD), pregnancy, and the set of theoretical mediators controlling for covariates. Bivariate analyses showed no relationship between self-esteem and STD or pregnancy; multivariate regression analysis revealed a significant relation between self-esteem and the set of mediators. Girls higher in self-esteem were more likely to hold positive condom attitudes, felt more efficacious in negotiating condom use, had more frequent communication with sex partners and parents, perceived fewer barriers to using condoms, and were less fearful of negotiating condom use. Self-esteem should be considered when designing and evaluating sexual risk reduction programs for this population.

Reducing STD and HIV risk behavior of substance-dependent adolescents: a randomized controlled trial.

A randomized controlled trial assessed 3 interventions designed to increase safer sex behaviors of substance-dependent adolescents. Participants (N = 161) received 12 sessions of either a health information intervention (I only), information plus skills-based safer sex training (I + B), or the same experimental condition plus a risk-sensitization manipulation (I + M + B). The I + B and I + M + B conditions, as compared with the I only condition, (a) produced more favorable attitudes toward condoms; (b) reduced the frequency of unprotected vaginal sex; and (c) increased behavioral skill performance, frequency of condom-protected sex, percentage of intercourse occasions that were condom protected, and number of adolescents who abstained from sex. The intervention that included the risk-sensitization procedure was more resistant to decay. An unexpected finding was that the I + B and I + M + B conditions produced substantial increases in sexual abstinence.

Condom discomfort and associated problems with their use among university students.

In addition to consistent use, condoms must be used correctly. The purpose of this study was to identify prevalence and types of condom-associated discomfort among university students, the outcomes of this discomfort, and the role of discomfort in condom breakage. We conducted a cross-sectional study of 206 students attending a private university in the southern United States. We assessed 3 potential outcomes: breakage, not using condoms throughout sex, and low condom-use motivation. Nearly one third reported discomfort, including tightly fitting condoms, vaginal irritation, and loss of sensation. Discomfort was associated with breakage (p = .0001), incomplete use (p = .0001), and less motivation to use condoms (p = .018). Gender moderated the latter 2 findings. Adjusted findings indicate that students reporting discomfort were 3.6 times more likely to also report breakage (p = .0009). Continued investigation of this topic is warranted. Prevention education may benefit university students by promoting several key practices, such as adding lubricant to condoms before they dry out and acquiring condoms that fit properly.