Association between Irregular Lifestyle and Weight Gain in Non-Obese Japanese Adults

Abstract

  This study aimed to investigate the relationship between irregular lifestyle and weight gain in non-obese Japanese adults. The participants were 9,123 people aged 20-64 who had medical checkups in 2013 and 2017, and had BMI of 18.5-24.9 kg/m². Participants who has stroke, heart disease and chronic kidney disease were excluded. Irregular lifestyle habits pertaining to sleep duration, meal timing and skipping breakfast, late dinners and bedtime snacks were used. Multiple logistic regression analysis was performed to assess the relationship between weight gain and irregular lifestyle. A linear trend was conducted to verify the effects of weight change on the number of irregular lifestyle patterns. Skipping breakfast was associated with weight change ≥ 4%. The trend between weight change and the number of irregular lifestyle habits was significantly positive. Skipping breakfast was associated with weight change ≥ 4% four years later in non-obese Japanese adults. An increase in irregular lifestyle habits may, therefore, affect weight gain.