Department of Epidemiology and Public Health, University College London, UK.
Br J Health Psychol. 2011 Nov;16(4):828-45. doi: 10.1111/j.2044-8287.2011.02019.x. Epub 2011 Mar 31.
Alcohol impairs judgement and could be causally implicated in sexual risk taking. However, meta-analytic studies do not find an association between alcohol use and unprotected sexual intercourse at the event level, where both behaviours refer to the same point in time. Associations between personality traits and sexual risk taking have been replicated across several studies. Traits may be better conceptualized as independent risk factors, where alcohol use mediates the association between personality and condom use. The objective of our study was to determine the direct and indirect effects connecting big five personality traits with condom use, potentially mediated through alcohol use during the most recent sexual encounter.
A sample of community-dwelling adults (N= 190) completed measures of big five personality traits and a detailed assessment of event-level sexual behaviour and alcohol use.
In regression model adjusting for known confounding factors, including oral contraceptive use, partner type, and hazardous drinking patterns, one standard deviation increase in conscientiousness was associated with a 1.14-fold increase in the odds of using a condom with most recent sexual partner (p= .04). Repeating the analysis using zero-inflated regression for estimated blood alcohol concentration (eBAC) values revealed an association between conscientiousness and eBAC (p= .002). There was no association between alcohol and condom use in either analysis.
The results illustrate that personality traits are strong independent risk factors for sexual risk taking and eBAC values during sexual events, and both should be incorporated into research designs. Future research should evaluate specific facets of conscientiousness, and whether eBAC mediates the association between personality and condom use in other samples. The possibility of tailoring interventions to personality traits is discussed.
酒精会损害判断力，可能与性冒险行为有因果关系。然而，元分析研究并未发现饮酒与性行为时不使用安全套之间存在关联，因为这两种行为都指的是同一时间点的行为。个性特征与性冒险行为之间的关联已在多项研究中得到复制。特质可以更好地被概念化为独立的风险因素，其中酒精使用在个性与使用安全套之间的关联中起中介作用。我们的研究目的是确定连接大五人格特质与使用安全套的直接和间接效应，这些效应可能通过最近一次性行为期间的酒精使用来介导。
一组社区居住的成年人（N=190）完成了大五人格特质的测量，以及对最近一次性行为和酒精使用的详细评估。
在调整已知混杂因素（包括口服避孕药使用、伴侣类型和危险饮酒模式）的回归模型中，尽责性每增加一个标准差，与最近一次性伴侣使用安全套的几率增加 1.14 倍相关（p=0.04）。使用估计血液酒精浓度（eBAC）值的零膨胀回归重复分析显示，尽责性与 eBAC 之间存在关联（p=0.002）。在这两种分析中，酒精与使用安全套之间均无关联。
结果表明，个性特征是性冒险行为和性行为时 eBAC 值的强有力独立风险因素，两者都应纳入研究设计。未来的研究应该评估尽责性的具体方面，以及 eBAC 是否在其他样本中中介了个性与使用安全套之间的关联。讨论了针对个性特征定制干预措施的可能性。
