Core group evolution over time - High-risk sexual Behavior in a birth cohort between sexual debut and age 26
Core group evolution over time - High-risk sexual Behavior in a birth cohort between sexual debut and age 26
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DOI：
10.1097/01.olq.0000097102.42149.11
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发表时间：
2003-11-01
影响因子：
3.1
通讯作者：
Dickson, N
中科院分区：
文献类型：
--
作者：
Humblet, O;Paul, C;Dickson, N
背景与目的：性传播疾病概念的局限性之一是性行为随时间的稳定性的不确定性。目的是通过纵向评估出生队列中的性行为来阐明核心群体的特征和稳定性。目的：目的是描述在18岁、21岁和26岁时每年报告5个或更多异性恋伴侣的人群（替代核心群体）的群体规模和特征。研究设计：我们采用了一项前瞻性队列研究，采用计算机呈现的性行为问卷。结果：在最初的队列成员中，991人（97.3%的人被认为活着）至少在一个年龄有反应。在18岁、21岁或26岁时，共有14.7%的女性和26.0%的男性属于核心群体，但在所有年龄段，分别只有0.5%和0.9%的女性和男性属于核心群体。那些在核心组的人更有可能同时有伴侣，性传播疾病（STD）的发病率也更高。第一次性行为的年龄越早，越有可能成为核心群体，而那些受教育程度较低的人更有可能在18岁时成为核心群体，但在以后的年龄则不然。结论：随着时间的推移，个体性行为的高度可变性增加了识别性传播疾病核心群体的复杂性。
Background and Objective: Among the limitations of the concept of a sexually transmitted disease core is uncertainty about the stability of sexual behavior over time. The objective was to shed light on characteristics and stability of the core group by assessing sexual behavior longitudinally in a birth cohort.Goals: The goals were to describe group size and characteristics of people who report 5 or more heterosexual partners per year (a surrogate for the core group) at ages 18, 21, and 26 years.Study Design: We used a prospective cohort study with a computer-presented questionnaire on sexual behavior.Results: Of the original cohort members, 991 (97.3% of those believed to be alive) responded at at least one age. A total of 14.7% of women and 26.0% of men were in the core group at either age 18 or 21 or 26, but only 0.5% and 0.9% of women and men, respectively, were in the core group at all ages. Those in the core group were significantly more likely to report concurrent partnerships and higher sexually transmitted disease (STD) rates. Early age at first sex was consistently associated with being in the core group, whereas those with less education were more likely to be in the core group at age 18 but not at later ages.Conclusion: The high degree of variability in sexual behavior over time of individuals adds another degree of complexity to the identification of a core group for STD transmission.