Department of Global Health Promotion, Tokyo Medical and Dental University (TMDU), Japan.
Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan.
J Gerontol B Psychol Sci Soc Sci. 2018 Sep 20;73(7):1330-1334. doi: 10.1093/geronb/gbw211.
Eating by oneself may be a risk factor for poor nutritional and mental statuses among older adults. However, their longitudinal association with mortality in relation to coresidential status is unknown.
We conducted a 3-year follow-up of participants in the Japan Gerontological Evaluation Study, a population-based cohort of 65 years or older Japanese adults. We analyzed mortality for 33,083 men and 38,698 women from 2010 to 2013 and used. Cox regression models were used to estimate hazard ratios (HR) for mortality.
A total of 3,217 deaths occurred during the follow-up. Compared with men who ate and lived with others, the HRs after adjusting for age and health status were 1.48 (95% confidence intervals [CI]: 1.26-1.74) for men who ate alone yet lived with others and 1.19 (95% CI: 1.01-1.41) for men who ate and lived alone. Among women, the adjusted HR was 1.18 (95% CI: 0.97-1.43) for women who ate alone yet lived with others and 1.10 (95% CI: 0.93-1.29) for women who ate and lived alone.
A setting in which older adults eat together may be protective for them. Promotion of this intervention should focus on men who eat alone yet live with others.
独自进食可能是老年人营养和精神状况不佳的一个风险因素。然而，关于与共同居住状态有关的与死亡率的纵向关联尚不清楚。
我们对日本老年评估研究的参与者进行了为期 3 年的随访，这是一项针对 65 岁及以上日本成年人的基于人群的队列研究。我们分析了 2010 年至 2013 年 33083 名男性和 38698 名女性的死亡率，并使用 Cox 回归模型估计死亡率的风险比（HR）。
在随访期间共发生 3217 例死亡。与与他人共同进食和生活的男性相比，调整年龄和健康状况后，独自进食但与他人共同生活的男性的 HR 为 1.48（95%置信区间[CI]：1.26-1.74），独自进食和生活的男性的 HR 为 1.19（95% CI：1.01-1.41）。对于女性，与独自进食但与他人共同生活的女性相比，调整后的 HR 为 1.18（95% CI：0.97-1.43），与独自进食和生活的女性相比，调整后的 HR 为 1.10（95% CI：0.93-1.29）。
老年人一起进食的环境可能对他们有保护作用。应将这种干预措施的推广重点放在独自进食但与他人共同生活的男性身上。
