Adaptaçao portuguesa e validaçao da versao reduzida da Condom Use Self-efficacy Scale / Portuguese adaptation and validation of the brief version of Condom Use Self-efficacy Scale

Introdução. O preservativo é o método mais eficaz na prevenção de infeções sexualmente transmissíveis. É reconhecido o papel da autoeficácia na predição de comportamentos de saúde e a autoeficácia para usar preservativo tem‐se mostrado um constructo‐chave relacionado com o uso efetivo do preservativo. Objetivos. Proceder à adaptação e validação da versão reduzida da Condom Use Self‐efficacy Scale (CUSES) para estudantes do ensino superior português. Material e métodos. Foi realizado um estudo quantitativo, descritivo‐correlacional numa amostra de conveniência de 1.946 estudantes do ensino superior, 64% raparigas e 36% rapazes, com idade média de 21 anos (20,74±2,32). Resultados. A análise das características psicométricas da escala foi avaliada com recurso à análise fatorial exploratória (AFE) e confirmatória (AFC), realizada em 2 subgrupos aleatorizados da amostra inicial. Os resultados da AFE revelaram uma estrutura com 4 fatores, semelhante à escala original, que explicam 70,6% da variância e uma boa consistência interna (alpha=0,86). A AFC revelou a necessidade de ajustamento do modelo aos dados, apresentando o modelo modificado índices aceitáveis de ajustamento. A versão modificada revelou valores adequados de fiabilidade, validade fatorial e validade concorrente e discriminante. Conclusões. As propriedades psicométricas avaliadas permitem considerar a utilização deste instrumento no desenvolvimento de programas de saúde sexual e reprodutiva para estudantes do ensino superior português, pois permite determinar os domínios relevantes da perceção da autoeficácia para usar o preservativo (AU)

Introduction. Condoms are the most effective method to prevent sexually transmitted infections. The role of self‐efficacy in predicting health behaviors and self‐efficacy to use condoms has been shown to be a key related construct to the effective use of condoms. Objectives. Adaptation and validation of the reduced version of Condom Use Self‐efficacy Scale (CUSES) for Portuguese college students. Material and methods. We conducted a quantitative, descriptive and correlational in a convenience sample of 1946 university students study, 64% girls and 36% boys, mean age 21 years (20.74±2.32). Results. The analysis of the psychometric characteristics of the scale was carried using exploratory (EFA) and confirmatory factor analysis (EFC), held in 2 randomized subgroups of the original sample. The results of EFA revealed a structure with four factors, which explains 70.6% of variance and have a good values of internal consistency (alpha=0.86). The AFC revealed the need to adjust the model to the data, presenting acceptable levels of adjustment. The modified version had good reliability, factorial validity and concurrent and discriminant validity. Conclusions. The psychometric properties assessed allow considering the use of this instrument in the development of sexual and reproductive health programs for students of Portuguese higher education as it allows determining the relevant fields of self‐efficacy perception to use condom (AU)

Contraceptive use in random samples of Greenlandic and Danish women--changes from 1986 to 1988.

As part of a study of risk factors for cervical cancer, the possible change was assessed in the use of condoms after AIDS campaigns. In 1986, samples of 800 women aged 20-39 years were drawn at random from Nuuk/Godthåb (Greenland) and Nykøbing Falster (Denmark). A total of 586 and 661 women were interviewed in Greenland and Denmark, respectively. In 1988, new random samples of 150 women were drawn from the same areas. Totally, 129 Greenlandic and 126 Danish women were included in the study. From 1986 to 1988 the prevalence of ever having used condoms increased significantly among Greenlandic women aged 20-29, whereas no statistically significant changes were observed in Denmark. This pattern was independent of the lifetime number of sexual partners. Neither in Greenland nor in Denmark did the mean lifetime number of sexual partners change from 1986 to 1988.