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Table 2 Multivariable-adjusted odds ratios and confidence intervals of the premenstrual and menstrual symptoms according to sleep duration

From: Association of sleep duration and insomnia with menstrual symptoms among young women in Upper Egypt

Symptoms≥ 8 h (Ref)< 8 hoursOR (95% CI)< 7 hOR (95% CI)< 6 hOR (95% CI)
Irregular cycle695 (23.9)353 (29.2)1.1 (1.0–1.3)142 (27.2)1.1 (0.9–1.3)35 (26.7)1.0 (0.7–1.5)
Premenstrual
 Spasm1790 (61.4)821 (67.9)1.3 (1.1–1.5)361 (69.2)1.3 (1.1–1.6)88 (67.2)1.2 (0.8–1.7)
 Nervousness1135 (39.0)469 (38.8)1.0 (0.8–1.1)201 (38.5)0.9 (0.7–1.1)53 (40.5)0.9 (0.6–1.3)
 Fatigue1060 (36.4)433 (35.8)1.0 (0.9–1.2)201 (38.5)1.1 (0.9–1.4)59 (45.0)1.4 (1.1–2.1)
 Headache630 (21.6)286 (23.7)1.1 (0.9–1.3)134 (25.7)1.2 (1.0–1.5)36 (27.5)1.4 (0.9–2.0)
 Breast pain639 (21.9)234 (19.4)0.8 (0.7–1.0)119 (22.8)1.0 (0.8–1.2)40 (30.5)1.4 (0.9–2.1)
 Weight gain417 (14.3)166 (13.7)0.9 (0.7–1.1)88 (16.9)1.1 (0.9–1.4)29 (22.1)1.5 (0.9–2.3)
 GIT symptoms396 (13.6)149 (12.3)0.9 (0.7–1.1)68 (13.0)0.9 (0.7–1.2)23 (17.6)1.3 (0.8–2.1)
Menstrual
 Menses > 4 days2000 (68.7)815 (67.4)0.9 (0.8–1.0)363 (69.5)1.0 (0.8–1.2)79 (60.3)0.7 (0.4–1.0)
 Dysmenorrhea2677 (91.9)1116 (92.3)1.0 (0.8–1.3)475 (91.0)0.9 (0.6–1.2)121 (92.4)1.1 (0.5–2.0)
  1. Adjusted for gynecological age, residence, educational and occupational status, marriage, parental education, passive smoking, diet, and circumcision
  2. Reference: ≥ 8 h