Data from: Do singles or couples live healthier lifestyles? trends in Queensland between 2005-2014

Objectives: To compare the frequency of and trends in healthy lifestyle factors between singles and couples. Methods: Cross-sectional data from annual surveys conducted from 2005-2014 were used. The pooled sample included 15,001 Australian adults (mean age: 52.9 years, 50% male, 74% couples) who participated in the annual Queensland Social Survey via computer-assisted telephone interviews. Relationship status was dichotomised into single and couple. Binary logistic regression was used to assess associations between relationship status, and the frequency of and trends in healthy lifestyle factors. Results: Compared to singles, couples were significantly more likely to be a non-smoker (OR = 1.82), and meet recommendations for limited fast food (OR = 1.12), alcohol consumption (OR = 1.27) and fruit and vegetable intake (OR = 1.24). Fruit and vegetable intake was not significantly associated with relationship status after adjusting for the other healthy lifestyle factors. Conversly, couples were significantly less likely to be within a normal weight range (OR = 0.81). In both singles and couples, the trend data revealed significant declines in the rates of normal weight (singles: OR = 0.97, couples: OR = 0.97) and viewing TV for less than 14 hours per week (singles: OR = 0.85, couples: OR = 0.84), whilst non-smoking rates significantly increased (singles: OR = 1.12, couples: OR = 1.03). The BMI trend was no longer significant when adjusting for health behaviours. Further, in couples, rates of meeting recommendations for physical activity and fruit/vegetable consumption significantly decreased (OR = 0.97 and OR = 0.95, respectively), as did rates of eating no fast food (OR = 0.96). These trends were not significant when adjusting for the other healthy lifestyle factors. In singles, rates of meeting alcohol recommendations significantly increased (OR = 1.08). Conclusions: Health behaviour interventions are needed in both singles and couples, but relationship status needs to be considered in interventions targeting alcohol, fast food, smoking and BMI. Further research is needed to understand why health behaviours differ by relationship status in order to further improve interventions.

研究目的：对比单身群体与伴侣群体健康生活方式因素的发生频率及变化趋势。
研究方法：采用2005-2014年年度横断面调查数据。合并样本共纳入15001名澳大利亚成年人（平均年龄52.9岁，男性占比50%，74%为伴侣关系群体），所有受试者均通过计算机辅助电话访谈（computer-assisted telephone interviews）参与年度昆士兰州社会调查。将婚恋状况二分为单身与伴侣两类，采用二元逻辑回归（binary logistic regression）分析婚恋状况与健康生活方式因素的发生频率及变化趋势之间的关联。
研究结果：与单身群体相比，伴侣群体成为非吸烟者的比值比（Odds Ratio, OR）为1.82，显著更高；同时更符合限制快餐摄入、酒精摄入及蔬果摄入的健康推荐标准，对应OR值分别为1.12、1.27与1.24。在校正其他健康生活方式因素后，蔬果摄入与婚恋状况无显著关联。反之，伴侣群体处于正常体重范围的概率显著更低（OR=0.81）。无论单身群体还是伴侣群体，趋势分析均显示正常体重比例与每周看电视时长低于14小时的比例均呈显著下降趋势：正常体重的OR值分别为0.97（单身）与0.97（伴侣），每周看电视时长达标者的OR值分别为0.85（单身）与0.84（伴侣）；而非吸烟比例则显著上升，对应OR值分别为1.12（单身）与1.03（伴侣）。在校正健康行为因素后，体重指数（Body Mass Index, BMI）的变化趋势不再具有统计学显著性。此外，伴侣群体中符合体力活动与蔬果摄入推荐标准的比例显著下降（OR值分别为0.97与0.95），完全不摄入快餐的比例同样呈下降趋势（OR=0.96）。在校正其他健康生活方式因素后，上述趋势不再具有统计学显著性。单身群体中符合酒精摄入推荐标准的比例则显著上升（OR=1.08）。
研究结论：单身群体与伴侣群体均需开展健康行为干预，但针对酒精摄入、快餐摄入、吸烟与体重指数的干预措施需考虑婚恋状况的影响。未来需进一步探究婚恋状况影响健康行为的内在机制，以优化相关健康干预方案。