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Sexual behavior and sexually transmitted diseases among male adolescents in detention.

BACKGROUND: Youth in detention represent a medically underserved population at risk for a variety of medical and emotional disorders. GOAL OF THE STUDY: To determine prevalence of STDs and high-risk sexual behaviors for HIV/STD among adolescent males admitted to a juvenile detention facility. STUDY DESIGN: Cross-sectional study of behavioral risk factors and STD prevalence among detained males, 11 to 18 years of age. Study subjects were interviewed for behavioral history and screened for STD. RESULTS: The median number of lifetime partners of the population was 8 (range 1-100), the number of partners in the preceding 4 months was 2 in median (range 0-30), 59% used a condom with their last sex, and consistent condom use in the past 4 months was reported by 37%. A history of sexual intercourse within the last one week was reported by 43%. Chlamydia trachomatis infection rate was 6.9% (66/957), Neisseria gonorrhoeae 4.5% (42/940) and syphilis 0.9% (8/930) including one who seroconverted while in detention. Overall, 12% (109/908) of subjects tested for all three infections were positive for at least one STD. Stepwise logistic regression analysis showed that greater than one partner in the previous 4 months (OR 1.53, 95% confidence interval [95% CI] 1.18-1.98), inconsistent or no condom use in the preceding 4 months (OR 1.77, 95%CI 1.37-2.28), a history of recent STD (OR 1.80, 95%CI 1.33-2.42) and greater than five lifetime partners (OR 2.03, 95% CI 1.41-2.92) were independent predictors of these STDs in this population. CONCLUSION: Detained juvenile males in our study were at a high-risk for STD/HIV infections and probably form a core group of STD transmitters. Vigorous attempt to reduce STD reservoir and change behavior of juveniles in detention, such as our study subjects, is urgently needed for the control of the STD/HIV infections.

Adolescent↗
PubMed2005

Temporal trends in sexual behaviors and sexually transmitted disease history among 18- to 39-year-old Seattle, Washington, residents: results of random digit-dial surveys.

OBJECTIVES: The objectives of this study were to describe sexual behaviors of Seattle residents in 2003-2004 and report changes since 1995. METHODS: We conducted a random digit-dial (RDD) survey among 18- to 39-year-old men and women in 2003-2004. We compared the results with the results of a 1995 RDD survey conducted in the same population. Questionnaire batteries and sampling methods were similar in the 2 surveys. RESULTS: Between 1995 and 2004, the median number of lifetime sex partners increased from 7 to 8. Vaginal douching declined from 70.6% to 25.9% (P = 0.004) among black women; from 8.3% to 5.9% (P <0.05) among Asian American women; and from 15.5% to 2.4% (P <0.05) overall. After adjustment, proportions of women who reported practicing vaginal douching (odds ratio [OR], 0.13; 95% confidence interval [CI], 0.7-0.22), the proportion of respondents who reported a history of any sexually transmitted disease (OR, 0.70; 95% CI, 0.53-0.93) and a history of gonorrhea (OR, 0.48; 95% CI, 0.25-0.89) declined between 1995 and 2004. Conversely, the proportion of respondents who reported only same-sex partners (OR, 3.27; 95% CI, 1.33-9.88), condom use at first sex with their most recent sex partner (OR, 1.38; 95% CI, 1.06-1.78), and reported practice of anal sex (OR, 2.01; 95% CI, 1.21-3.48) increased between 1995 and 2004. Among blacks, proportions reporting an age difference of only 2 years with their partners declined from 64.3% to 25.9% (P <0.05), indicating increased age mixing. CONCLUSIONS: Some risk behaviors declined whereas others increased between 1995 and 2004; several trends were divergent between the general population and minority populations. Our data hint at an increasing divergence in risk behaviors and morbidity between minority populations and the general population. Also, anal sex and number of sex partners have increased. These patterns have serious implications for the design, targeting, and implementation of prevention programs.

Adolescent↗
PubMed1990

A survey of knowledge about AIDS and sexual behavior in sexually active men in Mae Sot, Tak, Thailand.

A survey of 15-34 year old men in Mae Sot, Tak, was conducted in December 1989 to determine their knowledge about AIDS, HIV transmission, and sexual behavior to guide future AIDS prevention programs. A total of 172 men from the municipality (urban) and 311 men from the surrounding villages (rural) were interviewed. More than 90% of both groups possessed knowledge about the existing modes of HIV transmission, however, there were some who had the mistaken belief that AIDS can be spread by mosquito bites, using public toilets, or through various forms of casual contact. These misconceptions in the community underscore the need for more education designed to counteract them. Although nearly all of them knew that condoms can prevent infection, only half of the urban and one-third of the rural sexually active men had ever used a condom during their sexual intercourse with prostitutes. However, condom use increased over time. Since a number of these men first engaged in sexual intercourse at an early age, the promotion of health education about AIDS in the schools is essential.

Acquired Immunodeficiency Syndrome↗
PubMed1994

Sexual behavior and sexual identity in male injection drug users.

Sexual behavioral data from a survey of 396 male drug injectors showed that 301 (76%) were behavioral heterosexuals, 49 (12.45%) were bisexuals, and 46 (11.6%) were homosexuals over the previous 5 years. Among those sexually active during the 6 months before the interview, bisexuals were similar to heterosexuals and homosexuals in reporting two or more female or male partners, respectively. Overall, almost three fourths of the bisexuals had two or more sexual partners. Bisexuals were also similar to heterosexuals in reported heterosexual and intercourse (16 and 15%, respectively), and to homosexuals in reported homosexual insertive anal intercourse (33 and 54%, respectively). They were less likely than heterosexuals to engage in vaginal and insertive oral sex with women and than homosexuals to practice receptive and and oral sex with men. The three groups all practiced high levels of unprotected sex. Almost half the behavioral bisexuals identified themselves as heterosexuals. Self-identified heterosexuals in the sample were less likely than self-identified gays or bisexuals to state they reduced sexual risk; however, reported condom use was low for all three groups. With human immunodeficiency virus infection rates of 54% (21 of 39) for behavioral homosexuals, 24% (11 of 45) for bisexuals, and 9% (24 of 260) for heterosexuals, these findings indicate an urgent need for more effective sexual risk reduction among injection drug users and their partners.

Adult↗
PubMed1993

Impact of environment, stress, occupational, and other hazards on sexuality and sexual behavior.

Sexual health is important for general as well as reproductive health. The effects of the environment on sexual health are complex, however, because of the psychosomatic nature of human sexuality. The effects of any specific environmental agent on sexual function will therefore be modified or amplified by psychosocial factors, and any assessment of the effects of the agent will need to take those factors into account. As a consequence, we have little direct evidence of the adverse effects of the environment on sexuality. This paper therefore considers a) the aspects of sexuality that may by susceptible to environmental effects and the likely mediating mechanisms. These are considered under three headings: psychophysiological, endocrine, and subjective/interpersonal; b) the types of relevant environmental factors, including toxic pollutants, self-administered toxins, diet, situational factors, adversity, stress, and social and cultural factors. As yet research has not controlled adequately for the various confounding factors. It is suggested that a first step is to investigate the effects of work stress (e.g., shift and night work) on sexual relationships, comparing the effects across contrasting cultural settings. Such research would then provide a basis for cross-cultural study of other environmental factors.

Alcohol Drinking↗
PubMed2005

Effects of sequential or group exposure to unrestrained estrual females on expression of sexual behavior in sexually experienced beef bulls.

We tested the hypothesis that expression of sexual behavior in bulls is affected by the manner in which they are exposed to unrestrained, sexually receptive females. Twelve Angus bulls were used in a crossover design involving two treatments, each tested four times for a total of eight tests for each bull. Sexual interactions were quantified for each of four, 30-min periods under the following treatments: 1) exposure to each of four estrual females in sequence (SEQ); or 2) exposure to four estrual females as a group (GRP). Bulls were blocked into three testing groups, the order of which was stratified across eight test days. The order in which bulls were tested on a particular day had no effect on bulls' expression of mount interactions, or flehmen responses, suggesting that each group of bulls had similar sexual motivation at the beginning of each test. However, the bull testing order x treatment x time interaction influenced mounting interval (P = 0.08), copulation frequency (P <0.05), and copulation success ratio (P <0.05). When bulls were in GRP and tested first on test days, more (P <0.05) copulations were distributed to the first three females encountered compared with either the fourth female (P <0.05) or to each of the other females in SEQ (P <0.05). During later tests, other bulls in GRP were not able to copulate as frequently (P <0.05) with each female, displayed lower (P <0.05) copulation success ratios, and were allowed copulations by fewer (P <0.05) females during each 30-min test. When bulls were in SEQ, they displayed similar numbers of copulations regardless of the order in which they were tested, and had stable mounting intervals; however, copulation success ratio decreased (P <0.05) more rapidly during subsequent tests. Flehmen responses were initially displayed more frequently (P <0.05) when bulls were in GRP, but this effect diminished during subsequent 30-min tests. In conclusion, exposure of bulls to GRP induced greater sexual responsiveness than SEQ; however, this effect was due to enhanced sexual activity during the early stages of sexual encounters and with females that were not recently mated. Interestingly, bulls seem to repeatedly copulate with each individual female until, apparently, female sexual receptivity became attenuated. Thereafter, recently mated females allowed fewer episodes of repeated copulations, but they did not completely cease copulating with novel bulls.

Animals↗
PubMed1997

Childhood sexual abuse, adolescent sexual behaviors and sexual revictimization.

OBJECTIVE: The aims of this study were to examine the extent to which exposure to childhood sexual abuse (CSA) was associated with increased rates of sexual risk taking behaviors and sexual revictimization during adolescence. METHOD: A birth cohort of 520 New Zealand born young women was studied at regular intervals from birth to the age of 18. At age 18 retrospective reports of CSA were obtained from sample members. Over the course of the 18 year study information was gathered on: (a) childhood, family, and related circumstances; and (b) the young women's history of sexual experiences from 14 to 18 years. RESULTS: Young women reporting CSA, and particularly severe CSA involving intercourse, had significantly higher rates of early onset consensual sexual activity, teenage pregnancy, multiple sexual partners, unprotected intercourse, sexually transmitted disease, and sexual assault after the age of 16. Logistic regression analyses suggested that the associations between CSA and sexual outcomes in adolescence arose by two routes. First, exposure to CSA was associated with a series of childhood and family factors including social disadvantage, family instability, impaired parent child relationships, and parental adjustment difficulties that were also associated with increased sexual vulnerability in adolescence. Second, there appeared to be a causal chain relationship between CSA and sexual experiences in which CSA was associated with early onset sexual activity which, in turn, led to heightened risks of other adverse outcomes in adolescence. CONCLUSIONS: The findings of this study suggest that those exposed to CSA have greater sexual vulnerability during adolescence. This appears to arise because: (a) the childhood and family factors that are associated with CSA are also associated with increased sexual risks during adolescence; and (b) exposure to CSA may encourage early onset sexual activity which places those exposed to CSA at greater sexual risk over the period of adolescence.

Adolescent↗
PubMed1991

Zona incerta lesions: effects on copulation, partner-preference and other socio-sexual behaviors.

Sexually active males prefer a sexually receptive female to a non-receptive female, and partner-preference tests provide one way of studying the effect of brain damage on sexual motivation. Male rats with bilateral electrolytic lesions of the caudal zona incerta do not mate, and we studied the effects of zona incerta destruction on copulation and partner-preference. Lesioned males did not mate but were not indifferent to sexually receptive females. They continued to show a strong preference for a sexually receptive female over a non-receptive female. In addition, lesioned males showed many incomplete mounts i.e. mounts not accompanied by the pelvic thrusting necessary for intromission and ejaculation. Anogenital investigation of the receptive female was common. Taken together, these facts suggest that zona incerta destruction eliminates copulation without affecting sexual motivation, and that the failure to mate after lesioning probably reflects an inability to properly engage the locomotor responses of copulation.

Animals↗
PubMed1999

Relationship between sexual behavior and sexually dimorphic structures in the anterior hypothalamus in control and prenatally stressed male rats.

The present study was designed to examine the effects of prenatal stress on the morphological development of sexually dimorphic structures in the anterior hypothalamus in male rats and to determine if there is a relationship between morphologic development of the brain and copulatory behavior in individual animals. Dams in the stress group were subjected to treatments of heat-light restraint during the third trimester of gestation (day 14 to parturition) three times daily for 45-min periods. At 90 days of age, prenatally stressed and control male offspring were tested during the dark cycle for spontaneous male sexual behavior. Volumes of the sexually dimorphic nucleus of the preoptic area (SDN-POA) and the anteroventral periventricular nucleus (AVPV) were measured. Comparisons were made between copulatory behavior and hypothalamic nuclear volumes. SDN-POA volumes were significantly reduced (feminized; males have a larger SDN-POA than females) in prenatally stressed males that did not copulate, whereas, SDN-POA volumes in prenatally stressed males that copulated were not altered. The few control males that did not copulate (sexually non-active) also had significantly reduced SDN-POA volumes compared to the control males that did copulate (sexually active). The volume of the AVPV was significantly increased (feminized; males have a smaller AVPV than females) in prenatally stressed males that were sexually non-active compared to AVPV volumes in sexually active males. The results obtained in this study provide a strong positive relationship between sexual behavior and the morphology of the two sexually dimorphic structures measured.

Animals↗
PubMed1996

Control of male sexual behavior and sexual orientation in Drosophila by the fruitless gene.

Sexual orientation and courtship behavior in Drosophila are regulated by fruitless (fru), the first gene in a branch of the sex-determination hierarchy functioning specifically in the central nervous system (CNS). The phenotypes of new fru mutants encompass nearly all aspects of male sexual behavior. Alternative splicing of fru transcripts produces sex-specific proteins belonging to the BTB-ZF family of transcriptional regulators. The sex-specific fru products are produced in only about 500 of the 10(5) neurons that comprise the CNS. The properties of neurons expressing these fru products suggest that fru specifies the fates or activities of neurons that carry out higher order control functions to elicit and coordinate the activities comprising male courtship behavior.

Age Factors↗
PubMed2006

Sensation seeking, alcohol use, and sexual behaviors among sexually transmitted infection clinic patients in Cape Town, South Africa.

Alcohol use is associated with risks for HIV/AIDS. The association between alcohol and sexual risk may be accounted for by sensation seeking personality. However, sensation seeking in relation to substance use and HIV risk has not been examined in Africa. In this study, 292 men and 219 women receiving sexually transmitted infection (STI) diagnostic and treatment services in Cape Town, South Africa, completed anonymous behavioral surveys. Structural modeling was used to test a model of alcohol use and sensation seeking in relation to sexual risk behaviors. Results showed that sensation seeking and alcohol use in sexual contexts were related to HIV risks, controlling for gender and marital status. The association between sensation seeking and HIV risk was partly accounted for by alcohol use in proximity to sex. In contrast to studies conducted in the United States, sensation seeking was not related to alcohol-sex outcome expectancies. These findings suggest that alcohol use is an important HIV transmission risk factor for many STI clinic patients and that interventions for individuals who are characterized as sensation seekers are urgently needed in South Africa.

Adolescent↗
PubMed1993

Gender differences in masturbation and the relation of masturbation experience in preadolescence and/or early adolescence to sexual behavior and sexual adjustment in young adulthood.

A comparison of male and female masturbation practices was undertaken in a sample of university students to determine if the long-standing finding that young adult men in this country masturbate more than young adult women was still evident in the 1980s. Despite the efforts in the past quarter century to encourage women in our society to take greater responsibility for their own bodies and their own sexuality and to engage in more sexual self-exploration and self-stimulation, results show that women continue to masturbate much less than men. Twice as many men as women had ever masturbated and the men who masturbated did so three times more frequently during early adolescence and young adulthood than the women who masturbated during these same age periods. A second purpose of this study was to determine whether having masturbation experience during preadolescence and/or early adolescence was related to intercourse experience, sexual satisfaction, sexual arousal, or sexual difficulties in relationships during young adulthood. No such linkage was observed, suggesting that early masturbation experience is neither beneficial nor harmful to sexual adjustment in young adulthood.

Adolescent↗
PubMed2002

Sexual behavior problems in sexually abused children: a preliminary typology.

OBJECTIVE: The goal was to develop an empirically derived typology for sexually abused children exhibiting sexual behavior problems to assist practitioners in differential assessment, treatment, and case planning. METHOD: Data were systematically gathered from the clinical records of 100 sexually abused children, aged 3 years to 7 years, enrolled in two treatment programs. Twelve indexes were created corresponding to major areas of child and family history, functioning, and treatment response. After initial sorting into subgroups based on the presence or absence of interpersonal sexual behavior problems, further subdivision was based on hierarchical cluster analysis. RESULTS: Five distinctive sexual behavior profiles emerged: (1) developmentally expected; and developmentally problematic (2) interpersonal, unplanned, (3) self-focused, (4) interpersonal, planned (noncoercive), and (5) interpersonal, planned (coercive). Elements of the child's sexual abuse experience, opportunities to learn/practice problematic sexual behavior, and familial variables best differentiated between the types. CONCLUSIONS: The five types differed not only in child sexual behavior but in most areas of child and family functioning, including treatment outcome. The findings offer support for the development of an empirically-based typology for children with sexual behavior problems utilizing a range of variables which go beyond typical classification systems based on offender and victim characteristics.

Canada↗