Objective

The aims of the current study were to investigate the associations between two aspects of well-being - satisfaction with life and vitality - and all-cause mortality, and examine the impact of potential confounding factors on the associations.

Methods

Baseline satisfaction with life was assessed using the Satisfaction With Life Scale (n = 7058) and vitality was assessed using the Short-Form 36 vitality subscale (n = 6987). The study sample consisted of midlife participants from the Copenhagen Aging and Midlife Biobank (CAMB) study conducted from 2009 to 2011. Deaths (n = 312) in the study sample in the follow-up period (mean of 8.6 years) were assessed using Danish register data. The hazard ratios of all-cause mortality according to satisfaction with life and vitality scores adjusted for potential covariates were examined with proportional hazard regression.

Results

A one standard deviation increase on the SWLS and the SF-36 vitality scale was associated with a 39% (HR = 0.61, 95% CI = 0.55–0.67) and 40% (HR = 0.60, 95% CI = 0.54–0.66) decreased risk of mortality respectively, after adjustment for baseline sociodemographic factors. The associations remained significant after separate adjustment for lifestyle (SWLS: HR = 0.67, SF-36 vitality: HR = 0.67), health (SWLS: HR = 0.65, SF-36 vitality: HR = 0.64), depressive symptoms (SWLS: HR = 0.72, SF-36 vitality: HR = 0.71) and social factors (SWLS: HR = 0.76, SF-36 vitality: HR = 0.69).

Conclusions

Satisfaction with life and vitality are of predictive value for mortality, independently of sociodemographics, lifestyle, health, depressive symptoms, and social factors.

中文翻译：

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自我报告的生活满意度和活力与死亡风险的纵向关联

客观的

当前研究的目的是调查幸福感的两个方面——生活满意度和活力——与全因死亡率之间的关联，并检查潜在混杂因素对这些关联的影响。

方法

使用生活满意度量表 ( n  = 7058)评估基线生活满意度，使用 Short-Form 36 活力分量表 ( n  = 6987)评估活力。研究样本包括来自 2009 年至 2011 年进行的哥本哈根老龄化和中年生物库 (CAMB) 研究的中年参与者。 研究样本中随访期间（平均 8.6 年）的死亡人数（n = 312）使用丹麦语进行评估注册数据。根据对潜在协变量调整后的生活满意度和活力评分的全因死亡率风险比通过比例风险回归进行检查。

结果

SWLS 和 SF-36 活力量表上一个标准差的增加与 39% (HR = 0.61, 95% CI = 0.55–0.67) 和 40% (HR = 0.60, 95% CI = 0.54–0.66) 相关在调整基线社会人口因素后，分别降低了死亡风险。在对生活方式（SWLS：HR = 0.67，SF-36 活力：HR = 0.67）、健康（SWLS：HR = 0.65，SF-36 活力：HR = 0.64）、抑郁症状（SWLS：HR = 0.64）进行单独调整后，这些关联仍然显着= 0.72，SF-36 活力：HR = 0.71）和社会因素（SWLS：HR = 0.76，SF-36 活力：HR = 0.69）。

结论

对生活和活力的满意度对死亡率具有预测价值，与社会人口统计学、生活方式、健康、抑郁症状和社会因素无关。