The effect of soy dietary supplement and low dose of hormone therapy on main cardiovascular health biomarkers: a randomized controlled trial.

PURPOSE: To assess the effects of a soy dietary supplement on the main biomarkers of cardiovascular health in postmenopausal women compared with the effects of low-dose hormone therapy (HT) and placebo. METHODS: Double-blind, randomized and controlled intention-to-treat trial. Sixty healthy postmenopausal women, aged 40-60 years, 4.1 years mean time since menopause were recruited and randomly assigned to 3 groups: a soy dietary supplement group (isoflavone 90mg), a low-dose HT group (estradiol 1 mg plus noretisterone 0.5 mg) and a placebo group. Lipid profile, glucose level, body mass index, blood pressure and abdominal/hip ratio were evaluated in all the participants at baseline and after 16 weeks. Statistical analyses were performed using the χ2 test, Fisher's exact test, Kruskal-Wallis non-parametric test, analysis of variance (ANOVA), paired Student's t-test and Wilcoxon test. RESULTS: After a 16-week intervention period, total cholesterol decreased 11.3% and LDL-cholesterol decreased 18.6% in the HT group, but both did not change in the soy dietary supplement and placebo groups. Values for triglycerides, HDL-cholesterol, glucose level, body mass index, blood pressure and abdominal/hip ratio did not change over time in any of the three groups. CONCLUSION: The use of dietary soy supplement did not show any significant favorable effect on cardiovascular health biomarkers compared with HT. CLINICAL TRIAL REGISTRY: The trial is registered at the Brazilian Clinical Trials Registry (Registro Brasileiro de Ensaios Clínicos - ReBEC), number RBR-76mm75.

The prevalence of the components of low sexual function and associated factors in middle-aged women.

INTRODUCTION: Female sexual function depends on biological, psychological, and sociocultural contexts. AIM: The objective of the present study was to evaluate the prevalence of low levels of functioning in each of the sexual function domains (desire, arousal, and orgasm) and the factors associated with these phenomena, as well as to assess the frequency of sexual activity in this same sample population. METHODS: A cross-sectional, population-based study was conducted using an anonymous self-response questionnaire completed by 378 Brazilian-born women of 40-65 years of age with 11 years or more of formal education. The evaluation instrument was based on the Short Personal Experiences Questionnaire. RESULTS: The prevalence of low sexual desire was 60.6%; low arousal, 37%; and low orgasmic function, 31.1%. Multiple regression analysis showed that having a sexual partner (prevalence ratio [PR] = 0.69, confidence interval [CI] = 0.53-0.90) and nervousness (PR = 1.33, CI = 1.01-1.75) were factors associated with low sexual desire. Aging (PR = 1.04, CI = 1.02-1.06), having a sexual partner (PR = 0.57, CI = 0.41-0.81), feeling well/excellent (PR = 0.59, CI = 0.41-0.85), and having hot flashes (PR = 1.47, CI = 1.01 = 2.15) were factors found to be associated with low sexual arousal. Having a sexual partner (PR = 0.55, CI = 0.42-0.71), feeling well/excellent (PR = 0.68, CI = 0.49-0.94), and having hot flashes (PR = 2.08, CI = 1.43 = 3.04) were factors found to be associated with low sexual orgasmic function. Having a sexual partner (PR = 0.47, CI = 0.38-0.58), feeling well/excellent (PR = 0.78, CI = 0.69-0.89), and having hot flashes (PR = 1.15, CI = 1.05-1.26) were factors found to be associated with a frequency of sexual activity of once a week or less. CONCLUSIONS: In this sample of middle-aged women, low sexual desire was the most prevalent sexual problem. These results highlight the importance of identifying and treating factors associated with each individual component of low female sexual function.

[Physical activity and quality of life in women aged 60 or older: associated factors]. / Atividade física e qualidade de vida em mulheres com 60 anos ou mais: fatores associados.

PURPOSE: to evaluate the level of physical activity, quality of life and associated factors in women aged 60 or older. METHODS: a cross-sectional study was conducted on 271 women who go to a Leisure Center and women attended at a menopause ambulatory in Campinas (SP). The women were invited to take part in the research, carried out through interviews. The instruments used were the version 8 of the International Physical Activity Questionnaire (IPAQ) modified for the elderly population in order to evaluate their physical activity, and the World Health Organization Questionnaire of Quality of Life specific for this group (WHOQOL-OLD) to evaluate their quality of life. IPAQ results were assessed using tertiles. The association between the WHOQOL-OLD and the IPAQ results and subject characteristics was assessed by the Student's t test, Mann-Whitney test and multiple analyses. RESULTS: the average age of women was 67.4 ± 5.3 years. Among these women, 33% were classified as being less active. Analysis of each physical activity domain showed that 60.8% of the time was spent in sitting activities (1,701.6 ± 986.1 minutes/week). Multiple analyses indicated that attending a leisure center in Campinas (SP) and being 70 years old or older increased the chances of engaging in moderate-intensity or vigorous-intensity physical activity by 11.4 and 2.8 times, respectively. The average quality of life score was 66.9 ± 11.7. The highest value was observed in the domain related to sensory abilities (72.0 ± 18.8) and the lowest value was related to autonomy (60.3 ± 16.2). Linear regression showed that a good self-perception of health increased the quality of life score by 7.3 points, the use of a bigger amount of medication decreased it by 4.4 points and the performance of moderate or vigorous physical exercise increased the score by 4.8 points. CONCLUSION: women spend prolonged periods of time in sitting activities. The importance of engaging in moderate/vigorous-intensity physical activity is evident for obtaining a good quality of life.

[Factors associated with condom use and knowledge about STD/AIDS among teenagers in public and private schools in São Paulo, Brazil]. / Fatores associados ao uso de preservativo masculino e ao conhecimento sobre DST/AIDS em adolescentes de escolas públicas e privadas do Município de São Paulo, Brasil.

This study aimed to compare knowledge about STD/AIDS and identify the factors associated with adequate knowledge and consistent use of male condoms in teenagers from public and private schools in the city of São Paulo, Brazil. We selected 1,594 adolescents ranging 12 to 19 years of age in 13 public schools and 5 private schools to complete a questionnaire on knowledge of STD/AIDS and use of male condoms. Prevalence ratios were computed with a 95% confidence interval. The score on STD knowledge used a cutoff point corresponding to 50% of correct answers. Statistical tests were chi-square and Poisson multiple regression. Consistent use of male condoms was 60% in private and 57.1% in public schools (p > 0.05) and was associated with male gender and lower socioeconomic status. Female gender, higher schooling, enrollment in private school, Caucasian race, and being single were associated with higher knowledge of STDs. Teenagers from public and private schools have adequate knowledge of STD prevention, however this does not include the adoption of effective prevention. Educational programs and STD/AIDS awareness-raising should be expanded in order to minimize vulnerability.