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PubMed2001

A relative risk-based, disease-specific definition of sexual abstinence failure rates.

Sexual abstinence programs have the potential to reduce the incidence of unplanned pregnancies and sexually transmitted diseases (STDs) among adolescents. Effectiveness measures are needed to help researchers assess the impact of sexual abstinence promotion programs on STD and pregnancy rates and to enable comparisons of abstinence effectiveness with other contraception and STD prevention methods. Abstinence "failure rates" have been proposed as one measure of program effectiveness. However, the concept of abstinence failure rates has not been adequately operationalized. The present study examines a novel mathematical framework for estimating abstinence failure rates, both theoretically and empirically. Examples are provided, and the advantages and disadvantages associated with the mathematical model-based approach are discussed.

Adolescent↗
PubMed2006

[Knowledge of contraceptive methods among adolescent students].

OBJECTIVE: To compare the knowledge of contraceptive methods as well as to identify factors associated with adequate knowledge among public and private school adolescents. METHODS: A cross-sectional study comprising 1,594 adolescents aged between 12 and 19 years old from 13 public and five private schools in the city of São Paulo city, Brazil, was carried out from June to December 2003. Schools were randomly selected and students filled out a questionnaire about sociodemographic, reproductive and contraceptive methods. The prevalence ratios were estimated with a 95% confidence interval for each question on their knowledge of contraceptive methods and by school group. Each question correctly answered received a half score, and the cut-off value was 50% of correct answers. Statistical tests utilized were Chi-square and Wilcoxon-Gehan tests and Poisson multiple regression model. RESULTS: Of all respondents, 61% were of females in both school groups. Most students had low socioeconomic condition in public schools while they had mostly high socioeconomic condition in private schools (p<0.001). Nearly 18.6% private and 28.6% public school students were sexually active (p<0.002). In regard to their knowledge, 25.7% of public and 40.8% of private school students had a score equal to or above five. Factors associated with higher knowledge were: being female, at high school of a private school, having high socioeconomic condition, having had sexual intercourse and being older. CONCLUSIONS: Knowledge of contraceptive methods was low in both public and private school students. The study results show that both underprivileged as well as high socioeconomic adolescents need to have adequate information about family planning to improve their knowledge and change their behavior.

Access to Information↗
PubMed1995

A cross-sectional survey of condom use in conjunction with other contraceptive methods.

A cross-sectional survey of 3,136 women attending family planning clinics in Texas was conducted to examine past use of and future plans for use of condoms by partners during sexual intercourse for disease prevention in conjunction with other contraceptive methods. Following the receipt of clinical services, including counseling about family planning and disease prevention, both contraceptive and planned condom use reporting increased for the majority of subjects. However 22% of the sample indicated that they intended to reduce condom use in the future and instead use a contraceptive which protects from pregnancy but not from disease. Condom use was indicated more frequently for those who reported at least one risk factor for HIV, but 17% of those at risk indicated lower future condom use than past use. This suggests that without changes in risk behavior, these women will be at increased risk of HIV or another sexually transmitted disease.

Adolescent↗
PubMed2007

[Teenage pregnancy: Behavioral and socio-demographic profile of an urban Brazilian population].

To identify the socio-demographic behavioral profile of low-income pregnant teenagers, 1,000 adolescents admitted to a Brazilian public maternity hospital from July 24, 2001, to November 27, 2002, were interviewed. Socio-demographic and behavioral variables were assessed through a questionnaire. Over the 492 days of the study, 24.3% of admissions were adolescents (930 for childbirth and 70 for miscarriage). Mean maternal age was 17 years. Most teenagers (72.9%) lived near the hospital. 930 (93%) belonged to socioeconomic classes C, D, and E. School dropout was identified in 67.3% of the total. 80.1% of the subjects were giving birth for the first time. 81.2% had not planned the pregnancy, and 23.8% had been using some contraceptive method. 67.4% had vaginal deliveries. Some 13.3% of the newborns were premature and 15.9% had low birth weight. 17.3% of these adolescent mothers reported smoking during pregnancy, with 2.8% reporting alcohol and 1.7% illicit drugs. Teenage pregnancy is a complex phenomenon associated with various economic, educational, and behavioral factors. The study provides importance references for public policies to prevent teenage pregnancy.

Adolescent↗
PubMed1999

Women's use of dual methods of sexual self-protection.

In a sample of college women at two private universities, this study examined dual use of self-protective measures, i.e., simultaneous use of condoms for disease prevention and birth control pills for contraception. Those who were dual users of condoms and birth control pills were in newer relationships, were less committed to their current relationships, and perceived their partners as more likely to have HIV or other STDs, as compared to college women using condoms only, birth control pills only, or no method. Dual use was unrelated to personality or health and risk behavior. Rather, dual use reflected a pattern of sexual self-protection based on risk management associated with concerns about consequences of sexual activity, that is STDs and conception, and not with more distal factors.

Adult↗
PubMed1994

[Abortions on demand in adolescents].

The pregnancy is an integral part in the life of teenagers. When the conception was appeared the adolescents have to choose between interruption of delivery. Psychological status, contraceptive use and sexual behavior, motivation for abortion, operative methods and complications were observed in 463 teenagers, aged 13-17 years, who had an abortion voluntary in the last 6 years (1988-1993). We were found an abortion rate to 2.33% in our Dept. Obstet. Gynaecol. and a trend to increase the number of delivery in teenagers. The medical complications of abortions were: perforatio uteri complicata (0.65%) and endometritis acuta (9.29%), in cases with pregnancies over 16-20 g.a. This investigation was characterized from the teenagers as an stress and will be able to be complicate with a psychological disorders.

Abortion, Legal↗
PubMed1996

[Sexual activity, contraception and abortions among teenagers in Bulgaria].

Sexual activity in adolescence, the pregnancies, abortions and deliveries, STDs and the decisive role of the information about sex and sexuality are questions with great importance nowadays. The aim of present study is to find the changes in the sexual activity among the adolescents, in their motivation in beginning the sexual life, information that they have about sex and sexuality, in unwanted pregnancies, deliveries and about abortions in the last five years, following our former study. We present the data obtained from an inquire of 432 schoolboys and girls (aged 17-18), from 263 girls, aged 13 to 18, admitted for interruption of unwanted pregnancy in the Univ. Ob. & Gyn. Hospital in Sofia, Bulgaria, as well as from 132 girls after delivery in adolescence.

Abortion, Legal↗
PubMed1981

Chlamydia trachomatis in women attending a gynaecological outpatient clinic with lower genital tract infection.

In a study of 3794 consecutive women attending a gynaecological outpatient clinic with symptoms of lower genital tract infection (LGTI) 350 (9.2%) harboured Chlamydia trachomatis and 83 (2.2%) Neisseria gonorrhoeae. One hundred and ninety-five patients who were later found to have acute salpingitis and 109 other women in whom the chlamydial cultures were spoiled were excluded from the series. Of the remaining 3490 women, 281 were infected with C trachomatis, 42 with N gonorrhoeae, and 17 with both. Of the 3150 women who were infected with neither organism, 146 were randomly selected as controls. The chlamydia-positive patients were younger (P less than 0.001), did not complain of pelvic discomfort or pain (P less than 0.01), and used oral contraceptives (P less than 0.001) more frequently than did the controls; intrauterine devices were used more often (P less than 0.01) by the controls. Increased vaginal discharge was reported significantly more often in chlamydia-positive patients than in the controls (P less than 0.05). Of 266 women harbouring C trachomatis the organism was still present in 22 (8.3%) when they were followed up from two to more than eight weeks after finishing treatment with doxycycline. Of 91 male consorts of chlamydia-positive women, 53 (58.2%) were infected with C trachomatis.

Adult↗
PubMed1997

Social consequences of psychiatric disorders, II: Teenage parenthood.

OBJECTIVE: The subject of this study was the relation between retrospectively reported early-onset psychiatric disorders and subsequent teenage parenthood in the general population. METHOD: The data were from 5,877 respondents aged 15-54 years in the National Comorbidity Survey, a nationally representative household survey. Information on respondents' DSM-III-R anxiety disorders, mood disorders, substance abuse disorders, and conduct disorder, age at the birth of the first child, and teenage sexual activity was collected in face-to-face interviews. RESULTS: Early-onset psychiatric disorders were associated with subsequent teenage parenthood among both females and males, with significant odds ratios of 2.0-12.0 and population attributable risk proportions of 6.2%-33.7%. Disaggregation analyses showed that disorders were associated with increased probability of sexual activity but not with decreased probability of using contraception. CONCLUSIONS: These results add to a growing body of evidence that psychiatric disorders are associated with a variety of adverse life consequences. The current policy debate concerning universal insurance coverage needs to take this into consideration. Planners of interventions aimed at preventing teenage pregnancy should consider including a mental health treatment component in their intervention packages. Mental health professionals treating adolescents need to be sensitized to their higher risk of pregnancy, while family doctors and specialists treating teenage mothers or their children need to be sensitized to the mothers' higher risk of psychiatric disorder.

Adolescent↗
PubMedDate not supplied

Association between the menstrual cycle and anterior cruciate ligament injuries in female athletes.

Anterior cruciate ligament injury rates are four to eight times higher in women than in men. Because of estrogen's direct effect on collagen metabolism and behavior and because neuromuscular performance varies during the menstrual cycle, it is logical to question the menstrual cycle's effect on knee injury rates. Of 40 consecutive female athletes with acute anterior cruciate ligament injuries (less than 3 months), 28 (average age, 23 +/- 11 years) met the study criteria of regular menstrual periods and noncontact injury. Details concerning mechanism of injury, menstrual cycle, contraceptive use, and previous injury history were collected. A chi-square test was used to compute observed and expected frequencies of anterior cruciate ligament injury based on three different phases of the menstrual cycle: follicular (days 1 to 9), ovulatory (days 10 to 14), and luteal (day 15 to end of cycle). A significant statistical association was found between the stage of the menstrual cycle and the likelihood for an anterior cruciate ligament injury (P = 0.03). In particular, there were more injuries than expected in the ovulatory phase of the cycle. In contrast, significantly fewer injuries occurred in the follicular phase. These hormones may be a factor in the knee ligament injury dilemma in women.

Acute Disease↗
PubMed1997

[The use and effects of postcoital contraception].

OBJECTIVES: To find those people seeking post-coital contraception (PCC), its efficacy and effects. DESIGN: A crossover study using a structured questionnaire, filled in both at the moment of demand and after using PCC. SETTING: The "Nóvoa Santos" Family Planning Centre in Ourense. PARTICIPANTS: All those requesting PCC between January 1995 and June 1996 (220 in all). INTERVENTIONS: The PCC norm was 8 pills, two taken every 12 hours, of 0.05 mg of Ethinyloestradiol (EE) plus 0.5 mg of Norgestrel. MEASURES AND MAIN RESULTS: We analysed social and demographic variables, sexual behaviour and PCC use with the SPSS programme for Windows. 96.4% attending were women, average age 21.98. They began coitus at 18.58 years old. 191 (86.8%) had a stable partner and 0 to 3 coitus per week. The condom was the commonest method (90.6%). CONCLUSIONS: Young women requesting PCC immediately after the risk coitus are students and residents in the city. It is a method used when there are problems with the condom and the frequency of failure is low. Sexually active people should be informed of the existence and use of PCC, as should the health professionals who could be asked for it.

Adult↗
PubMed2005

Length of the menstrual cycle after discontinuation of oral contraceptives.

OBJECTIVE: To investigate whether the first cycle after stopping oral contraceptive (OC) intake had a normal duration. METHODS: A retrospective study was performed in 680 women, 300 non-OC users and 380 women discontinuing OC intake. The length of one or two menstrual cycles was recorded. RESULTS: In the non-user group, the median duration of both the first and second cycle was 29 days (range 18-97 and 20-56 days, respectively). In the OC user group the median duration from withdrawal bleeding until next menstruation was 30 (15-82) days. The second cycle lasted 29 (17-122) days. The duration of the first post-treatment cycle was not significantly different from the next cycle or the cycle length in non-users. When the subjects were divided into different age categories, a significantly longer first post-treatment cycle was observed in the group aged 18-24 years, but a shorter first post-treatment cycle in the group aged 25-29 years. No differences were seen in the higher age groups. The ethinyl estradiol dose of the OC preparation did not influence the results. CONCLUSIONS: The first cycle after OC discontinuation had a normal duration.

Adolescent↗
PubMed2004

Review of epidemiological evidence for reproductive and hormonal factors in relation to the risk of epithelial ovarian malignancies.

Ovarian cancer is the leading cause of mortality related to gynecologic malignancies in Sweden but there is no current screening program. Based upon epidemiological research there is evidence that certain reproductive factors are associated with ovarian cancer risk. Most studies generally indicate that each childbirth incurs a 15-20% risk reduction. Women who have used oral contraceptives for 5 years or longer experience about half the risk of ovarian cancer compared with never users. Breastfeeding seems to be protective while age at menarche and at menopause are less consistent risk predictors. Tubal ligation and hysterectomy seem to reduce ovarian cancer risk by up to 80%. Although some studies found endometriosis, polycystic ovarian syndrome (PCOS) and pelvic inflammatory disease (PID) to be positively related to ovarian cancer, the role of these factors is not yet established. Most recent studies observed an approximately 50% ovarian cancer risk increase among ever users of hormone replacement therapy (HRT) compared with never users, and the risk increased further with long-term use. There is less information concerning separate estrogen and progestin effects of HRT and ovarian cancer risk. Although the cause of ovarian cancer remains obscure, hypotheses relating to "incessant" ovulation, excessive gonadotropin secretion, retrograde carcinogen transportation, apoptosis and estrogen/progestin imbalance have been invoked as etiological explanations. All these hypotheses find various epidemiological support. The aim of this review is to summarize the epidemiological findings on reproductive factors and ovarian cancer risk. These findings are considered in the context of etiologic hypotheses and some new research areas are suggested.

Adult↗
PubMedDate not supplied

Parents' beliefs about condoms and oral contraceptives: are they medically accurate?

CONTEXT: Parents are encouraged to be the primary sex educators for their children; however, little is known about the accuracy of parents' views about condoms and oral contraceptives. METHODS: Telephone surveys using validated measures provided data on beliefs about the effectiveness, safety and usability of condoms and the pill among 1,069 parents of 13-17-year-olds in Minnesota and Wisconsin in 2002. Pearson chi-square tests and multivariate logistic regression models were used to compare beliefs according to sex, age, race, religion, education, income and political orientation. RESULTS: Substantial proportions of parents underestimated the effectiveness of condoms for preventing pregnancy and sexually transmitted diseases (STDs). Only 47% believed that condoms are very effective for STD prevention, and 40% for pregnancy prevention. Fifty-two percent thought that pill use prevents pregnancy almost all the time; 39% thought that the pill is very safe. Approximately one-quarter of parents thought that most teenagers are capable of using condoms correctly; almost four in 10 thought that most teenagers can use the pill correctly. Fathers tended to have more accurate views about condoms than mothers did; mothers' views of the pill were generally more accurate than fathers'. Whites were more likely than nonwhites to hold accurate beliefs about the pill's safety and effectiveness; conservatives were less likely than liberals to hold accurate views about the effectiveness of condoms. CONCLUSION: Campaigns encouraging parents to talk with their teenagers about sexuality should provide parents with medically accurate information on the effectiveness, safety and usability of condoms and the pill.

Adolescent↗
PubMed2004

Attitudinal and contextual factors associated with discussion of sexual issues during adolescent health visits.

PURPOSE: To examine attitudinal and contextual factors associated with the occurrence of sexual health assessments during adolescent primary care visits. METHODS: A total of 313 primarily African-American youth aged 11-21 years from 16 community-based organizations in suburban Maryland and in New York City completed questionnaires focusing on sexually transmitted diseases (STD) and health care. The analysis examined the relationship of sexual activity, attitudes, and presence of the parent at the health care visit with discussion of three sexual health topics and testing for STD at the most recent health care visit. Data were analyzed using Chi-square tests and logistic regression. RESULTS: Overall, 74% of respondents reported that they had talked about at least one sexual health topic at their last health care visit but only 32% had discussed all three topics of sexual behavior, birth control, and STD. Females were more likely than males to discuss birth control although there were no gender differences in the overall likelihood of talking about a sexual health topic. Few adolescents initiated discussion of sexual issues. Positive attitudes toward discussing sexual issues with a provider and absence of a parent at the visit were independently associated with higher odds of discussing at least one sexuality topic and STD testing. CONCLUSIONS: Although relatively large numbers of adolescents in the sample received sexual health assessments, the proportion was below recommended guidelines. The opportunity to speak privately with a clinician and having positive attitudes about discussing sex with a doctor appear to be important influences on the receipt of sexual health assessments. Improving the quality of adolescent preventive care will require creating a health care environment that facilitates discussion of sexual health issues.

Adolescent↗
PubMed1985

Marketing of birth control in LDCs: with special references to India.

The authors outline a marketing approach for family planning programs in developing countries, with references to experiences in India. Following an overview of types of population programs, suggestions for strengthening program efforts are offered, and a framework for marketing birth control is described. "This approach was based on the recognition that acceptance of a small family norm is interwoven with the freedom to make that choice.... This framework suggests that marketing plans should be aimed at the three-dimensional goal of increasing the population's desire, ability, and capability toward acceptance of the small family norm and the practice of birth control [and] that in consideration of the wide geographical variations in population growth, per capita income, and the level of development in general, programs should be designed in a segmented manner to suit the socio-economic nature of each group."

Asia↗
PubMed1990

The effect of number of exposures on the risk of heterosexual HIV transmission.

Several studies of the heterosexual transmission of human immunodeficiency virus have reported no association between transmission and number of exposures. In contrast, this study showed that for a susceptible sex partner, the number of exposures to an infected index case is indeed associated with transmission, but in a nonlinear fashion. Factors that can dilute an association between transmission and number of exposures include measurement error in calculating number of exposures, use of inappropriate statistical models, and failure to account for variations in transmission rates. For example, the practice of anal intercourse and the experience of bleeding during intercourse increase the likelihood of transmission. We also observed that transmission occurred with fewer exposures among couples who did not use condoms compared with couples who did. The number of exposures also affects the independent association between other risk factors and transmission and thus should be considered when analyzing other sources of risk.

Adolescent↗
PubMed1995

Correlates of HIV risk among young adolescents in a large metropolitan midwestern epicenter.

This paper examines levels of participation in and correlates of AIDS-related risk behavior for young adolescents in high-risk communities as determined by proxy indicators such as rates of reported STDs and adolescent pregnancies. Seventh and eighth grade students from two middle schools and ninth grade students from the receiving high school were surveyed. Descriptive and inferential techniques examined grade, racial, behavioral, and gender differences in participation in risk (substance use and sexual activity) and protective (use of condoms and use of condoms and foam) behaviors. Grade, race, and sexual activity were significant correlates of both licit and illicit drug use. Gender, grade, race, and licit and illicit drug use were significant correlates of sexual activity. Results demonstrate that not only are adults and older teens at risk in these communities, but younger adolescents also are at risk. Findings indicate a need for comprehensive HIV prevention programs at younger ages.

Adolescent↗