Introduction

The Great East Japan Earthquake and the Fukushima Daiichi nuclear power plant accident in March 2011 impacted survivors’ mental health. This study examined whether exercise habits and mental health conditions were associated, and whether the degree of the effect varied depending on time.

Methods

A self-administered questionnaire was sent annually to former residents (born before April 1, 1998) in registered evacuation areas. Exercise habit was evaluated by participants’ exercise frequency, and responses were categorized into “almost never,” “once a week,” and “twice a week and more.” Data were tracked during three periods: fiscal year (FY) 2011–2012, 2012–2013, and 2013–2014. The association between baseline habitual exercise and new onset of psychological distress was assessed using the Japanese version of the Kessler 6-item Psychological Distress Scale and logistic regression analysis.

Results

A total of 1304 (5.7%) of 22,741, 1060 (4.7%) of 22,709, and 759 (3.6%) of 21,220 respondents had psychological distress in FY 2011–2012, 2012–2013, and 2013–2014, respectively. An association between exercise and psychological distress was observed in men in FY 2011–2012 (P for trend: 0.010) and in women in FY 2013–2014 (P for trend: 0.026). “Almost never” was associated with onset of psychological distress in men in FY 2011–2012 [odds ratio (OR): 1.317, 95% confidence interval (CI): 1.054–1.645] and in women in FY 2013–2014 (OR: 1.296, 95% CI: 1.027–1.636).

Conclusions

Exercise habit was associated with psychological distress, and its effect in time varied according to sex.

中文翻译：

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福岛第一核电站事故后习惯性锻炼与成年人心理健康的关系：福岛健康管理调查

介绍

2011年3月的东日本大地震和福岛第一核电站事故影响了幸存者的心理健康。这项研究检查了运动习惯和心理健康状况是否相关，以及影响的程度是否随时间而变化。

方法

每年向注册疏散区的前居民（1998年4月1日前出生）发送一份自我管理的调查表。通过参与者的运动频率来评估运动习惯，并将响应分为“几乎从不”，“每周一次”和“每周两次以上”。在以下三个时期内跟踪数据：2011-2012财年，2012-2013财年和2013-2014财年。使用日本版的Kessler 6项心理困扰量表和逻辑回归分析，评估了基线习惯锻炼与新的心理困扰发作之间的关联。

结果

在2011-2012财年，2012-2013财年和2013-2014财年，分别有22304名受访者中有1304名（5.7％），22,709名有1060名（4.7％），以及21,220名受访者中的759名（3.6％）有心理困扰。在2011-2012财年，男性和女性的运动与心理困扰之间存在关联（趋势P：0.010），在2013-2014财年女性中运动（心理P：0.026）。在2011-2012财年，男性几乎“绝不”与心理困扰的发作有关[比值比（OR）：1.317，95％置信区间（CI）：1.054–1.645]；在2013-2014财年女性中（“ OR： 1.296，95％CI：1.027-1.636）。

结论

运动习惯与心理困扰有关，其时间影响因性别而异。