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Table 1 Demographic and self-reported health data for the two groups of women

From: Women born with very low birth weight have similar menstrual cycle pattern, pregnancy rates and hormone profiles compared with women born at term

  VLBW (n = 24) Control (n = 25)  
n % n % p-value
Marital status      0.682
 Single 7 29.2 6 24.0  
 Partner (married/cohabiting) 17 70.8 19 76.0  
Living arrangements      0.495
 Rental 16 66.7 12 50.0  
 Condo 3 12.5 5 20.8  
 Single family house 5 20.8 7 29.2  
Employed      0.470
 Yes (full & part time) 16 66.7 19 76.0  
 No (unemployed, sick-leave, student) 8 33.3 6 24.0  
Educational level      0.611
 Elementary 1 4.3 2 8.0  
 Secondary 16 69.6 14 56.0  
 University 6 26.1 9 36.0  
Have children      1.000
 No 17 70.8 17 70.8  
 Yes 7 29.2 7 29.2  
Desire to have children      0.975
 No 1 4.3 1 4.2  
 Yes 22 95.7 23 95.8  
Self-reported good health      0.637
 No 2 8.3 3 12.5  
 Yes 22 91.7 21 87.5  
Regular use medication other than contraceptives      0.353
 No 15 65.2 13 52.0  
 Yes 8 34.8 12 48.0  
Tobacco use      0.667
 No 15 65.2 16 64.0  
 Snuff 3 13.0 2 8.0  
 Cigarettes 5 21.7 5 20.0  
 Both 0 0.0 2 8.0  
Alcohol use      0.365
 Never 4 17.4 4 17.4  
 1–4 times a month 11 47.8 9 36.0  
 2–3 times a week 8 34.8 12 48.0  
Exercise      0.459
 Never 1 4.3 0 0.0  
 0–1 times a week 5 21.7 5 20.0  
 2–4 times a week 11 47.8 9 36.0  
 Almost every day 6 26.1 11 44.0  
History of Gynaecological problems      0.979
 No 12 54.5 13 54.2  
 Yes 10 45.5 11 45.8  
History of miscarriage      0.438
 No 9 75.0 13 86.7  
 Yes 3 25.0 2 13.3  
History of induced abortion      0.409
 No 6 46.2 11 61.1  
 Yes 7 53.8 7 38.9  
Regular menstrual periods prior to oral contraceptives      1.000
 No 1 0.12 1 0.12  
 Yes 7 0.78 7 0.78