Barbosa Regina Maria, Koyama Mitti Ayako Hara
Núcleo de Estudos de População, Universidade Estadual de Campinas, Campinas, SP, Brasil.
Rev Saude Publica. 2008 Jun;42 Suppl 1:21-33. doi: 10.1590/s0034-89102008000800005.
To compare basic findings from two studies on sexual behavior and practices among women and men and their associations with sociodemographic characteristics of this population.
Data analyzed were obtained by a questionnaire applied to a probabilistic sample comprised of 3,423 people in 1998, and 5,040 people in 2005, all aged between 16 and 65 years, and living in urban areas of Brazil. Comparative analyses were performed by sex and year of research, and according to sociodemographic variables, using Pearson's chi-square test.
The number of sexual partners in the year that preceded the interview decreased from 29.5% to 23.1% among men. Variability in sexual behavior and practices according to age, level of education, marital status, religion and place of residence, in addition to specific characteristics based on sex, was observed. There was also an increase in the proportion of women who began their sexual life in the 16-to-19-year age group and had completed up to elementary school, or lived in Southern Brazil. Moreover, it was observed an increase of sexual activity reported by women in the last year, and a decrease among men over 55 years of age, Protestant/Pentecostal, or separated/widowed. The proportion of men with more than one sexual partner in the last year decreased among those aged between 25 and 44 years or who have completed up to high-school. There was an increase in oral sex practice reported by women who are over 35 years of age or live in Northern/Northeastern Brazil.
Comparative analysis from 1998 to 2005 suggested a tendency towards differences between women and men decreasing. This probably results from a pattern of change characterized by an increase in the frequency of female behavior investigated and a decrease in the frequency of male behavior.
比较两项关于男性和女性性行为及习惯的研究的基本结果，以及这些结果与该人群社会人口学特征的关联。
分析的数据来自于1998年对3423人以及2005年对5040人进行问卷调查所得，所有受访者年龄在16至65岁之间，居住在巴西城市地区。采用Pearson卡方检验，按性别、研究年份以及社会人口学变量进行比较分析。
在接受访谈前一年，男性的性伴侣数量从29.5%降至23.1%。观察到性行为和习惯根据年龄、教育程度、婚姻状况、宗教信仰和居住地存在差异，此外还存在基于性别的特定特征差异。在16至19岁开始性生活、小学及以下学历或居住在巴西南部的女性比例也有所增加。此外，观察到去年报告有性活动的女性比例上升，而55岁以上、新教/五旬节派或分居/丧偶的男性比例下降。在25至44岁或高中及以下学历的男性中，去年有多个性伴侣的比例下降。35岁以上或居住在巴西北部/东北部的女性报告的口交行为有所增加。
1998年至2005年的比较分析表明，男性和女性之间的差异有减小趋势。这可能是由于一种变化模式导致的，即所调查的女性行为频率增加，而男性行为频率下降。
