Are lifestyle pattern changes associated to poor subjective sleep quality?: a cross-sectional study by gender among the general Japanese population underwent specified medical checkups in 2014 and 2015.

Objectives: Subjective sleep quality (SSQ) is defined by the satisfaction of one’s overall sleep experience, and is composed of sleep depth and restfulness. It has not been clarified how poor SSQ is associated to changes in lifestyles. The purpose is to reveal the association of lifestyle pattern changes and poor SSQ.

Design: A cross-sectional study.

Setting: The data on basic attributes, SSQ, and lifestyle such as presence/absence of smoking, exercise, physical activity, supper time close to bedtime, drinking habits, and alcohol intake amount per day were obtained from database and questionnaire of specified medical checkups in FY 2014 and 2015 in Japan. The analysis was conducted in 2019.

Participants: The subjects comprised 49,483 residents (26,087 males and 23,396 females), aged 40 to 74 years who had undergone an annual specified medical checkup from 2014 to 2015 in Fukushima Prefecture, Japan.

Outcome measure: Status of SSQ in 2015 was assessed using a question asking ...