Kana Yoshimi1, Masami Shiina1, Takashi Takeda2. 1. Division of Women's Health, Research Institute of Traditional Asian Medicine, Kindai University, Osaka, Japan. 2. Division of Women's Health, Research Institute of Traditional Asian Medicine, Kindai University, Osaka, Japan. Electronic address: take@med.kindai.ac.jp.
Abstract
STUDY OBJECTIVE: To investigate the relationships between premenstrual syndrome (PMS) and lifestyle, sleep, and dietary habits among Japanese high school students. DESIGN: Cross-sectional study. SETTING: Two public high schools in Sendai, the largest city in northeastern Japan. PARTICIPANTS: A school-based survey was conducted among 1818 female Japanese high school students in 2015, and 1022 students with regular menstrual cycles (25-38 days) completed the questionnaire. INTERVENTIONS AND MAIN OUTCOME MEASURES: Relationships between PMS and lifestyle, sleep, and dietary habits. RESULTS: The rates of moderate to severe PMS and premenstrual dysphoric disorder were 9.7% (99/1022) and 2.2% (22/1022), respectively. A total of 121 students (11.9%) were classified as having PMS-the PMS(+) group. Significant differences were observed between the PMS(+) group and those without PMS-the PMS(-) group-in age at menarche (P = .022), menstrual pain (P < .001), hypnagogic disorder (P < .001), long Internet use time (P < .001), eating breakfast (P = .018), chewing well (P = .037), and belonging to a sports club (P = .046). Multivariate analysis revealed that the risk factors for PMS were menstrual pain (odds ratio [OR], 4.74; 95% confidence interval [CI]: 2.83-7.95), hypnagogic disorder (OR, 2.22; 95% CI, 1.47-3.35), stress fracture (OR, 2.19; 95% CI, 1.21-3.98), and Internet use time (OR, 1.003; 95% CI, 1.001-1.005). Belonging to a sports club decreased the risk of PMS (OR, 0.57; 95% CI, 0.35-0.91). CONCLUSION: Sleep, dietary habits, belonging to a sports club, and screen time affect PMS among high school students.
STUDY OBJECTIVE: To investigate the relationships between premenstrual syndrome (PMS) and lifestyle, sleep, and dietary habits among Japanese high school students. DESIGN: Cross-sectional study. SETTING: Two public high schools in Sendai, the largest city in northeastern Japan. PARTICIPANTS: A school-based survey was conducted among 1818 female Japanese high school students in 2015, and 1022 students with regular menstrual cycles (25-38 days) completed the questionnaire. INTERVENTIONS AND MAIN OUTCOME MEASURES: Relationships between PMS and lifestyle, sleep, and dietary habits. RESULTS: The rates of moderate to severe PMS and premenstrual dysphoric disorder were 9.7% (99/1022) and 2.2% (22/1022), respectively. A total of 121 students (11.9%) were classified as having PMS-the PMS(+) group. Significant differences were observed between the PMS(+) group and those without PMS-the PMS(-) group-in age at menarche (P = .022), menstrual pain (P < .001), hypnagogic disorder (P < .001), long Internet use time (P < .001), eating breakfast (P = .018), chewing well (P = .037), and belonging to a sports club (P = .046). Multivariate analysis revealed that the risk factors for PMS were menstrual pain (odds ratio [OR], 4.74; 95% confidence interval [CI]: 2.83-7.95), hypnagogic disorder (OR, 2.22; 95% CI, 1.47-3.35), stress fracture (OR, 2.19; 95% CI, 1.21-3.98), and Internet use time (OR, 1.003; 95% CI, 1.001-1.005). Belonging to a sports club decreased the risk of PMS (OR, 0.57; 95% CI, 0.35-0.91). CONCLUSION: Sleep, dietary habits, belonging to a sports club, and screen time affect PMS among high school students.