Active Male Adolescents Research Articles

Prevalence of metabolic syndrome and its associated factors in overweight and obese adolescents.

Background Metabolic syndrome (MetS) is not only a problem of adulthood but is already present in children and adolescents. The aim of this study was to estimate the prevalence of MetS in adolescents and to identify the associated factors. Methods This was a cross-sectional study with 354 overweight and obese school-aged adolescents (10-19 years). Sociodemographic, anthropometric, clinical, biochemical and lifestyle variables were collected. MetS was identified according to the criteria proposed by the International Diabetes Federation (IDF). Multivariate logistic regression models were used to examine the associations between risk variables and MetS. Results The prevalence of MetS was 9.6%. Among adolescents with MetS, all of them had low high-density lipoprotein cholesterol (HDL-c), while 76.5% had hyperglycemia and 38.2% had hypertriglyceridemia. Only 12.1% did not present any component of MetS, while 40% had at least two components. Multivariate analysis showed that being a girl was a protective factor (odds ratio [OR] = 0.29, confidence interval [CI] = 0.13-0.65) for the presence of MetS, while obesity (OR = 3.63, CI = 1.62-8.17) and being insufficiently active (OR = 4.60, CI = 1.01-20.96) were the risk factors for MetS. Conclusions Obese and insufficiently active male adolescents are more likely to have MetS. Early identification of MetS components, especially among obese adolescents, is an important tool for the prevention of cardiovascular complications in adult life.

Obesity in Adolescents Who Skip Breakfast Is Not Associated with Physical Activity.

It has been hypothesized that breakfast consumption is generally associated with healthy lifestyle behaviors, such as increased physical activity. The aim of this study was to examine the relations between breakfast consumption, adiposity measures and physical activity among adolescents. This investigation is a part of the Croatian physical activity in adolescence longitudinal study (CRO-PALS). This investigation is based on 802 participants (48% girls and 52% boys), aged between 15.2 and 16.0 years. Physical activity level and sedentary behaviors were assessed using the SHAPES questionnaire. Adiposity measures included the sum of four skinfolds, and multi-pass 24-h recall was used as the dietary assessment method. Participants who consumed breakfast had significantly lower body fat % (p = 0.011 for boys; p ≤ 0.001 for girls) compared to breakfast non-consumers. Physical activity has no mediating effect in the association of breakfast consumption on adiposity in boys (Sobel’s t = −0.541; p = 0.588) and girls (Sobel’s t = 1.020; p = 0.307). Breakfast consumption was negatively associated with adiposity only in the boys at the highest tertile of physical activity (p = 0.04). Physical activity has no mediating effect on the associations between breakfast consumption and adiposity, but has a moderation effect only in the most active boys. Breakfast consumption might exert beneficial effects only in the most active male adolescents, but not in the inactive ones.

Should Vo2 Be Normalized By Fat-free Mass In Recreationally Active Adolescent Males And Females?

PURPOSE: This research aims to observe sex difference in oxygen consumption (VO2) expressed in absolute terms and relative to body weight and to fat-free mass in adolescent children while exercising at submaximal and maximal intensity. METHODS: Body composition (Bod Pod, COSMED) and cardiorespiratory fitness (K5, COSMED) were assessed on twenty-two recreationally active, healthy adolescents (age 16-17 years; 9 males, fat mas% 16.8 ± 8.0; 13 females, fat mas% 27.4 ± 5.4). A 15 watts/min incremental test to exhaustion was performed on a cycle ergometer to measure VO2 at the aerobic threshold (AerT) and at peak exercise (VO2peak) using breath-by-breath gas analysis. Values were expressed in both absolute terms and normalized by body mass and fat-free mass. The AerT was identified using the V-slope technique and as the lowest respiratory equivalent for oxygen. RESULTS: The VO2 at the AerT was higher in males than females when expressed in absolute terms (1184 ± 222 vs 942 ± 202 ml/min, p = 0.015) and normalized by body weight (16.9 ± 2.2 vs 16.4 ± 3.1 ml/kg/min) but the trend was inverted when VO2 was normalized by FFM (20.43 ± 2.92 vs 21.57 ± 2.86 ml/kg/min). The same trend was observed at peak exercise. Males reported higher VO2peak than females when expressed in absolute terms (1792 ± 250 ml/min vs 2344 ± 554 ml/min, p < 0.01) and normalized by body weight (33.5 ± 6.1 vs 30.6 ± 5.5 ml/kg/min) but lower when normalized by FFM (40.1 ± 5.7 vs 41.4 ± 8.0 ml/kg/min). Male adolescents exerted higher power than females both at the AerT (63 ± 13 vs 57 ± 20 watts) and peak effort (198 ± 40 vs 160 ± 20 watts, P < 0.01). CONCLUSIONS: This study provides reflection on whether VO2 should be normalized by total mass or FFM in adolescent males and females.

A Systematic Literature Review of HPV Vaccination Barriers Among Adolescent and Young Adult Males.

The human papillomavirus (HPV) causes several cancers and genital warts among sexually active adolescent and young adult (AYA) males. Quadrivalent HPV vaccines were approved for use in the AYA male population in 2010, but vaccination rates have plateaued at around 10%-15%. A better understanding of the barriers AYA male patients, their parents, and their health care providers (HCPs) experience with respect to vaccination uptake is necessary for tailoring interventions for this population. A literature search was conducted through the PubMed and PsycINFO databases in October 2017. Studies were included if they specified at least one barrier to vaccination uptake in AYA males. Studies were excluded if they did not focus on AYA males, their parents, or their HCP; were conducted outside the United States; or were published before 2010. A total of 23 studies were reviewed, and analysis found that these three groups (i.e., AYA males, parents, and HCPs) had significantly different concerns regarding vaccination. The identified themes included the lack of HPV vaccine awareness/information, misinformation about HPV, lack of communication, financial issues relating to uptake, demographic/perceived social norms, and sexual activity. Health care professionals working directly with AYA males and their parents should provide an open route of communication regarding these sensitive issues, and further educate families on the importance of HPV vaccines in reducing the incidence of certain cancers among men in later adulthood.

Risky Sexual Behavior among Arrested Adolescent Males: The Role of Future Expectations and Impulse Control.

The current study evaluates two predictors of adolescent sexual risk-taking, specifically whether impulse control or future expectations predict condom use and casual sex. We examine whether risky sex occurs among youth who tend to act without thinking about the future, or instead, youth who report low future expectations. We consider these relations longitudinally among a sample of sexually active justice-involved adolescent males (N=752, M age=15.58) a group at heightened risk for sexual risk-taking. We found that optimistic expectations for the future predict a higher likelihood of engaging in consistent condom use, whereas high impulse control is related to a lower likelihood of casual sex. Implications for intervention and research on positive sexual health are discussed.

Diagnosis and Treatment of Sexually Transmitted Infections in the Emergency Department

Rates of chlamydia and gonorrhea infection are at an all-time high among adolescents. Because many infections are asymptomatic, the Centers for Disease Control and Prevention recommend at least yearly screening in sexually active female adolescents and all sexually active male adolescents if in high-prevalence clinical settings or in populations with high burden of infection. Adolescents often access the emergency department for care, many of whom are at high risk, making the emergency department a strategic setting to screen for sexually transmitted infections. Nucleic acid amplification testing is the Centers for Disease Control and Prevention–recommended test for chlamydia and gonorrhea. Empiric treatment should be considered carefully and initiated if indicated. Partner treatment is also important, and expedited partner therapy may be an option.

Prevalence and determinants of condom use among male adolescents in Indonesia.

Adolescent sexual and reproductive health problems remain a public health concern in Indonesia. An increase of premarital sex as well as early sexual debut among adolescents without any protection leads to a high risk of adverse sexual and reproductive health consequences. This study aimed to assess condom use prevalence and identify its determinants among male adolescents who are sexually active in Indonesia. This was a cross-sectional study using secondary data from the Adolescent Reproductive Health component of the Indonesia Demographic and Health Survey (IDHS) 2012. The sample for this study was 1341 sexually active male adolescents aged 15-24 years old. Data were analyzed descriptively and using binary logistic regression for bivariate and multivariate analysis. This study found that condom use prevalence among male adolescents at first and last sex accounted for 25.0% and 27.4%, respectively. Determinants of condom use varied by time of sexual intercourse. Knowledge of sexual and reproductive health and obtaining information about condoms were consistently related to condom use at first and last sexual encounter. Meanwhile, residential type, age at first sex, and sexual partner were significant determinants of condom use at sexual debut whilst educational level was only associated with condom use at last sex. As the level of protected sex among male adolescents was very low, providing comprehensive sexuality education (CSE) is suggested in order to develop the capacity among adolescents in making informed decisions and preventing unsafe sex.

Protective Role of Vitamin C Intake on Muscle Damage in Male Adolescents Performing Strenuous Physical Activity.

BACKGROUND:Strenuous non-regular exercise increases reactive oxygen species ROS level leading to an impaired balance between the endogenous antioxidant defence system and the free radicals production. Antioxidants intake can detoxify the peroxides produced during exercise, attenuating the inflammatory responses and therefore may prevent exercise-induced muscle damage.AIM:The purpose of this study was to determine the role of vitamin C intake in attenuating markers of muscle damage, oxidative stress and inflammatory responses in male adolescents performing the non-regular strenuous exercise.MATERIAL AND METHODS:Twenty recreationally active male adolescents were assigned to participate in the study. Eligible subjects performed strenuous recreational exercise (2-3 times per week) were randomly divided into two groups: The vitamin C (VC) group that consumed 500 mg of capsulated vitamin C after breakfast for a period of 90 days and the placebo (PL) group that consumed identical capsules in form and aspect that contained 500 mg of maltodextrin for the same period. Aspartate aminotransferase (AST), creatine kinase (CK), lactate dehydrogenase (LDH) were assessed for muscle damage. Malondialdehyde (MDA) was evaluated as a marker of lipid peroxidation. Plasma creatinine, uric acid and urea were determined to monitor kidney function. C-reactive protein, a marker of systemic inflammation was also measured.RESULTS:In comparison between PL and VC groups, the plasma concentrations of muscle damage markers, oxidative stress markers, kidney function and inflammatory markers showed no significant difference in their baseline values (P > 0.05). The plasma concentrations of CK, LDH, MDA, urea, uric acid and CRP were significantly decreased in the VC group (P < 0.05) as compared to their values before the intake of vitamin C.CONCLUSION:The present results support the intake of vitamin C as an antioxidant for attenuating exercise-induced muscle damage, oxidative stress and inflammatory markers in male adolescents performing the strenuous physical activity.

Determinants of Heterosexual Adolescents Having Sex with Female Sex Workers in Singapore.

ObjectivesWe assessed the proportion of and socio-ecological factors associated with ever having had sex with female sex workers (FSWs) among heterosexual adolescents. We also described the characteristics of the adolescents who reported inconsistent condom use with FSWs.MethodsThis is a cross-sectional study (response rate: 73%) of 300 heterosexually active male adolescents of 16 to 19 years attending a national STI clinic in Singapore between 2009 and 2014. We assessed the ecological factors (individual, parental, peer, school and medial influences) and sexual risk behaviors using a self-reported questionnaire. Poisson regression was used to obtain the adjusted prevalence ratios (aPR) and confidence intervals (CI).ResultsThe proportion of heterosexual male adolescents who had ever had sex with FSWs was 39%. Multivariate analysis showed that significant factors associated with ever having had sex with FSWs were sex initiation before 16 years old (aPR 1.79 CI: 1.30–2.46), never had a sexually active girlfriend (aPR 1.75 CI 1.28–2.38), reported lower self-esteem score (aPR 0.96 CI: 0.93–0.98), higher rebelliousness score (aPR 1.03 CI: 1.00–1.07) and more frequent viewing of pornography (aPR 1.47 CI: 1.04–2.09). Lifetime inconsistent condom use with FSWs was 30%.ConclusionsA significant proportion of heterosexual male adolescents attending the public STI clinic had ever had sex with FSWs. A targeted intervention that addresses different levels of influence to this behavior is needed. This is even more so because a considerable proportion of adolescents reported inconsistent condom use with FSWs, who may serve as a bridge of STI transmission to the community. National surveys on adolescent health should include the assessment of frequency of commercial sex visits and condom use with FSWs for long-term monitoring and surveillance.

Ethanol intake under social circumstances or alone in sprague-dawley rats: impact of age, sex, social activity, and social anxiety-like behavior.

In human adolescents, heavy drinking is often predicted by high sociability in males and high social anxiety in females. This study assessed the impact of baseline levels of social activity and social anxiety-like behavior in group-housed adolescent and adult male and female Sprague-Dawley rats on ethanol (EtOH) intake when drinking alone or in a social group. Social activity and anxiety-like behavior initially were assessed in a modified social interaction test, followed by 6 drinking sessions that occurred every other day in animals given ad libitum food and water. Sessions consisted of 30-minute access to 10% EtOH in a "supersac" (3% sucrose+0.1% saccharin) solution given alone as well as in groups of 5 same-sex littermates, with order of the alternating session types counterbalanced across animals. Adolescent males and adults of both sexes overall consumed more EtOH under social than alone circumstances, whereas adolescent females ingested more EtOH when alone. Highly socially active adolescent males demonstrated elevated levels of EtOH intake relative to their low and medium socially active counterparts when drinking in groups, but not when tested alone. Adolescent females with high levels of social anxiety-like behavior demonstrated the highest EtOH intake under social, but not alone circumstances. Among adults, baseline levels of social anxiety-like behavior did not contribute to individual differences in EtOH intake in either sex. The results clearly demonstrate that in adolescent rats, but not their adult counterparts, responsiveness to a social peer predicts EtOH intake in a social setting-circumstances under which drinking typically occurs in human adolescents. High levels of social activity in males and high levels of social anxiety-like behavior in females were associated with elevated social drinking, suggesting that males ingest EtOH for its socially enhancing properties, whereas females ingest EtOH for its socially anxiolytic effects.

Sexual orientation disparities in sexually transmitted infection risk behaviors and risk determinants among sexually active adolescent males: results from a school-based sample.

We examined disparities in risk determinants and risk behaviors for sexually transmitted infections (STIs) between gay-identified, bisexual-identified, and heterosexual-identified young men who have sex with men (YMSM) and heterosexual-identified young men who have sex with women (YMSW) using a school-based sample of US sexually active adolescent males. We analyzed a pooled data set of Youth Risk Behavior Surveys from 2005 and 2007 that included information on sexual orientation identity, sexual behaviors, and multiple STI risk factors. Bisexual-identified adolescents were more likely to report multiple STI risk behaviors (number of sex partners, concurrent sex partners, and age of sexual debut) compared with heterosexual YMSW as well as heterosexual YMSM and gay-identified respondents. Gay, bisexual, and heterosexual YMSM were significantly more likely to report forced sex compared with heterosexual YMSW. Our results provide evidence that sexual health disparities emerge early in the life course and vary by both sexual orientation identity and sexual behaviors. In particular, they show that bisexual-identified adolescent males exhibit a unique risk profile that warrants targeted sexual health interventions.

Disordered Eating and Forced Sex Among Adolescent Males

Abstract Background: Eating disorders among adolescent males are an understudied public health problem. Although a number of factors may contribute to disordered eating within this population, experiences of forced sexual intercourse among adolescent males may be a significant risk factor. This study sought to examine the independent association between experiences of forced sexual intercourse and disordered eating among adolescent males. Methods: Using data from a nationally representative sample (n=3,161), three logistic regression models were fit to the data to examine the association between forced sexual intercourse and disordered eating among sexually active adolescent males. Race/ethnicity and grade in school were included as control variables. Number of sexual partners, sports team participation, depressive symptoms, weight perceptions, and body mass index (BMI) were included as potentially confounding covariates. Results: Overall, 12.6% of adolescent males in the sample reported at least one diso...

Trichomonas vaginalis infection in male adolescents in parts of south eastern Nigeria

Background: T. vaginalis infection is present in the males where they may produce signs and symptoms. From two popular laboratories, one in Enugu and the other in Onitsha (Enugu and Anambra States), 361 consecutive young men was voluntarily enrolled into a study. Some were symptomatic and others were not. Urine, urethral smears and semen were collected and first directly examined under the light microscope, then cultured. Ethical clearance was obtained. Statistical analysis used were Simple Proportion tested by Chi Square Results: By Direct examination and by Culture, T. vaginalis was isolated in 25.2% of the population. This was mainly in traders and bus drivers / bus conductors. Only a few were secondary school students. Adolescents aged 15 to 18 years formed 11.3%. Conclusion: Males also harbor T. vaginalis infection in Nigeria. Therefore identification of the infection in females where it is relatively simpler to do so, calls for contact tracing in male partners for the relatively easy treatment in the couple(s). This may possibly assist in the prevention of the negative reproductive health I. Background: In this country, Nigeria, as in some other developing countries of the world, T. vaginalis infection has only been identified in females only. Over 175million cases of T. vaginalis STI (1) described world-wide left the impression that it is a female problem having been described in females only. Its infection is said to facilitate HIV transmission (2) in both sexes. Symptoms of PID, cervical neoplasia and vaginitis, of itchy yellowish-green vaginal discharge and signs of vaginal alkaline environment (from 3.8-4.2 to 5-6) are more clearly defined in females. In the males, it can lead to epidimytis, infertility and aggressive prostatic cancer (3). Sensitive laboratory tests for diagnosis required for males make it more difficult especially in developing countries like Nigeria. An editorial reported T. vaginalis as being the most prevalent non-STI in the USA and the world today (4). Before now, studies were done on females in the south east Nigeria and showed incidence rates of 4.5-45% (5). The present study was carried out among sexually active adolescent males to make the point of male infection and possibly assist in the prevention of the serious negative reproductive health consequences of T. vaginalis in this vulnerable group in the area. II. Results and Discussion:

Imaging Review of Adolescent Tibial Tuberosity Fractures

Adolescent tibial tuberosity injuries are infrequent fractures usually seen in physically active adolescent males. Powerful contraction of the knee extensors by sudden acceleration or deceleration of the quadriceps muscle can result in avulsion fractures of the tibial tuberosity apophysis. In late puberty, as the growth plate closes, it is transiently replaced by fibrocartilaginous elements. This transition causes a period of weakened tensile strength, which predisposes the tibial tuberosity to traction injury. Classification of tibial tuberosity fractures includes types I-V with added A and B subsets to types I, II and III. Multidetector computed tomography (MDCT) is a useful tool to more accurately classify complex, higher grade adolescent tibial tuberosity avulsion fractures when compared to plain film. This aids in preoperative planning and, therefore, results in improved treatment and management.

Annual Physical Examination Reports Vary by Gender Once Teenagers Become Sexually Active

Few sexually active male adolescents receive sexual and reproductive health (SRH) services. To understand this, we examined the association between sexual behavior status and physical examination of the adolescents over time. We conducted longitudinal cohort analysis of the National Longitudinal Study of Adolescent Health with 9,239 adolescents who completed the baseline school (1994/1995) and wave 2 (1996) follow-up surveys approximately 1.5 years later (retention rate = 71%). The logistic regression models were fitted with random effects to estimate individual odds of reporting a physical examination in the past 12 months at follow-up, compared with baseline, stratified by sexual behavior status and gender, and adjusting for sociodemographic and healthcare access factors. In all, 34.5% of male and 38.2% of female adolescents reported experiencing vaginal intercourse by follow-up, and 22.4% of male and 24.7% of female adolescents reported first experiencing intercourse during the study period. Among sexually active adolescents, about half reported having annual physical examinations and one-fifth reported not having any physical examinations. Among female adolescents, baseline to follow-up examination reports significantly increased in the following: sex initiators (adjusted odds ratio [OR] = 2.09, 95% confidence interval [CI] = 1.66-2.64); those reporting sex at both times (OR = 2.16, CI = 1.51-3.09); and those reporting no sex either time (OR = 2.47, CI = 2.00-3.04). Among male adolescents, baseline to follow-up examination reports significantly increased in those reporting no sex either time (OR = 1.57, CI = 1.26-1.96) and showed increasing trends in sex initiators (OR = 1.27, CI = .92-1.76). A majority of sexually active adolescents report annual physical examinations over time. Providers should not miss opportunities to deliver evidence-based SRH to sexually active adolescents. Future efforts are needed to increase access of all adolescents to SRH services. MESH TERMS: Health Services Accessibility, Male, Female.

Prediction of Peak Oxygen Uptake From a Maximal Treadmill Test in 12- to 18-Year-Old Active Male Adolescents

The aims were to develop and validate a VO(2peak) prediction equation from a treadmill running test in active male adolescents. Eighty-eight athletes (12-18 yrs.) performed a maximal exercise test on a treadmill to assess the actual VO2peak and a 20m Shuttle-Run-Test (20mST). A step-wise linear regression analysis was used and the following equation for estimation of VO(2peak) (mL·kg⁻¹·min⁻¹) = 35.477 + 1.832 × duration in min - 0.010 × duration × body mass in kg was developed. The cross-validation statistics were: R = .54, CE = 0.1 mL·kg⁻¹min⁻¹, SEE = 2.5 mL·kg⁻¹·min⁻¹ (4.6%), and TE = 2.6 mL·kg⁻¹·min⁻¹ (4.9%). The cross-validation values (CE, SEE, and TE) were lower compared with those of previously published equations in adolescents that estimated VO(2peak) using anthropometric data, performance in 20mST, and energy cost at submaximal speeds.

A longitudinal study of the relationship of physical activity to bone mineral accrual from adolescence to young adulthood

Physical activity in adolescence is beneficial for increasing bone mineral accrual; however, it's unclear whether these benefits persist into adulthood. This prospective study investigated whether physically active adolescents maintained their higher bone mineral content (BMC) into the third decade of life when compared to their less active peers. Data were from 154 subjects (82 females and 72 males) who participated in the University of Saskatchewan's Pediatric Bone Mineral Accrual Study (1991–1997), entry age 8 to 15 years. Participants returned for follow-up as young adults (2002–2006), follow-up age 23 to 30 years. Dual energy X-ray absorptiometry was used to measure BMC of total body (TB), lumbar spine (LS), total hip (TH) and femoral neck (FN) annually from 1991 to 1997 and from 2002 to 2006. Peak height velocity (PHV) was determined for each child as a measure of maturity. Age and gender-specific activity Z-scores were calculated for each participant based on the mean physical activity scores obtained from bi-annual questionnaire data during childhood and adolescence. Subjects were ranked into three adolescent activity groups: active, average and inactive (top, middle two, and bottom quartiles, respectively). Analysis of covariance (ANCOVA) was used to compare adjusted TB, LS, TH and FN BMC across the three adolescent activity groups at 1 year post PHV and in young adulthood. When compared to the inactive group, active males had 8% greater adjusted BMC at the TB, 13% at the LS and 11% at the TH ( p < 0.05) in adolescence. Active females also had 8% and 15% more adjusted BMC ( p < 0.05) at the TB and LS, respectively, during adolescence. In young adulthood the male and female adolescent active groups were still significantly more active than their peers ( p > 0.05). It was found that active adolescent males had 8–10% more adjusted BMC at the TB, TH and FN ( p < 0.05) in young adulthood and that active adolescent females had 9% and 10% more adjusted BMC at the TH and FN. These results suggest that the skeletal benefits of physically activity in adolescents are maintained into young adulthood.

Factors Associated With Disordered Eating Among Sexually Active Adolescent Males: Gender and Number of Sexual Partners

To examine the prevalence of disordered eating behaviors among sexually active adolescent males by gender and number of sex partners, and examine psychosocial well-being by sex partner factors among boys reporting disordered eating. Data were collected from 10,095 9(th) and 12(th) grade Minnesota Student Survey participants who reported sexual intercourse in the past year. The use of any disordered eating behaviors was reported by 39.4% of the sexually active males reporting only female sex partners, 53.4% reporting only male sex partners, and 56.4% reporting both female and male sex partners. Rates of specific disordered eating behaviors were associated with higher numbers of sex partners (male and/or female) and same gender of sex partner, and were highest among those males who reported 3 or more of both genders of sex partners. Among sexually active males reporting disordered eating, poorer emotional well-being and less family connectedness were associated with greater number of partners and with same-sex partners. Sexually active males, especially those with multiple and/or same-sex partners, may benefit from interventions targeted at reducing disordered eating behaviors. Among sexually active males engaging in disordered eating behaviors, enhancing emotional health and improving family connectedness may be beneficial, especially among those with sex partners of the same gender and/or with multiple sex partners. The identification of specific psychosocial characteristics that are commonly associated with sexually active adolescent males and who exhibit disordered eating behaviors may provide direction toward the development of appropriate early identification, prevention, and treatment efforts.

AIDS-related risk among adolescent males who have sex with males, females, or both: evidence from a statewide survey.

This study examined the prevalence of AIDS-related risk behaviors among adolescent males with female, male, and both-sex sexual partners and explored factors related to these behaviors. Three waves of a population-based survey provided data on male high school students: 3065 with only female sexual partners, 94 with only male partners, and 108 with both. Logistic regression analyses were used to examine AIDS-related outcomes. Youths with any same-sex experience reported less school AIDS education. Bisexual experience predicted multiple sexual partners, unprotected intercourse, sexually transmitted disease, and injection drug use. School AIDS education and condom instruction predicted less AIDS-related risk. Bisexually active adolescent males report especially high levels of AIDS risk behavior. School-based AIDS prevention should address the needs of all sexually active youths.

Adolescent males involved in pregnancy:: Associations of forced sexual contact and risk behaviors

Purpose: To determine whether sexually active adolescent males who report being the victim of forced sexual contact and engaging in health risk and problem behaviors are more likely to report getting someone pregnant. Methods: In 1995, 4159 students in Grades 9–12 in 59 randomly selected public high schools in Massachusetts were anonymously surveyed using the Youth Risk Behavior Survey (YRBS). Data were analyzed for 824 sexually active males. Demographic variables and indicators of sexual behavior, pregnancy, violence, and suicide were assessed. Data were analyzed with multiple logistic regression. Results: A total of 12.0% of sexually active males reported having been involved in a pregnancy. The proportion of males who reported getting a partner pregnant increased with age. Of the sample, 8.1% gave a history of having had sexual contact against their will. Of those who reported forced sexual contact, 36.4% reported having been involved in a pregnancy; of the males who did not report a history of forced sexual contact, 9.4% were involved in a pregnancy (CV = 0.23; p < 0.00001). Based on multiple logistic regression, forced sexual contact [odds ratio (OR) 3.56; 95% confidence interval (CI) 1.79–7.09], frequency of weapon carrying on school property (OR 1.39; 95% CI 1.18–1.64), number of cigarettes smoked per day (OR 1.22; 95% CI 1.08–1.38), number of sexual partners in the previous 3 months (OR 1.43; 95% CI 1.25–1.65), and condom nonuse at last intercourse (OR 1.80; 95% CI 1.06–3.02) correctly classified 89.9% of the males who were involved in a pregnancy. Conclusion: This study highlights the association between health-risk and problem behaviors, forced sexual contact, and involvement in pregnancy among sexually active male high school students. In our analysis, a history of forced sexual contact was associated with a higher risk of high school males’ involvement in pregnancy. These results strongly suggest the importance of screening sexually active males for a history of forced sexual intercourse and health risk and problem behaviors in the effort to prevent teenage pregnancy and childbearing.