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Table 1 Socio-demographic, lifestyle, and gynecological characteristics of the participating young women

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

CharacteristicsN = 4122 (%)
Age; mean ± Sd (range) years20.0 ± 3.3 (12–25)
ResidenceUrban1846 (44.8)
Rural2276 (55.2)
Occupational statusSchool student1130 (27.4)
University student1908 (46.3)
Employee634 (15.4)
None450 (10.9)
Married405 (9.8)
Father’s educationIlliterate646 (15.7)
Literate3476 (84.3)
Mother’s educationIlliterate1049 (25.4)
Literate3073 (74.5)
Passive smoking1901 (46.1)
Preference for salty-fatty diets2786 (67.6)
Physical activity799 (19.4)
Circumcision2420 (58.7)
Sleeping hours/day; mean ± Sd (range)8.3 ± 1.7 (4–16)
Insomnia477 (11.6)
Menarche age; mean ± Sd (range) years13.1 ± 1.4 (9–18)
Gynecological age; mean ± Sd (range) years6.9 ± 3.5 (0–16)
Menstrual cycle duration; mean ± Sd (range) days28.2 ± 6.8 (14–90)
Menstrual flow duration; mean ± Sd (range) days5.2 ± 1.4 (1–15)