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Table 1 Comparing the sociodemographic and clinical variables between women who breastfed previous children and women who did not breastfeed previous children

From: Association between breastfeeding and preeclampsia in parous women: a case –control study

Variables Women who breastfed (N = 314) Women who did not breastfeed (N = 34) Odds Ratio (95% Confidence Interval)
Age, years 30.0 (25.0–35.0) 31.0 (25.0–34.0) 1.02 (0.96,1.09)
Parity 4.0 (3.0–5.0) 3.0 (2.0–5.0) 1.09 (0.91,1.31)
Education level Numbers (proportion) Numbers (proportion)  
 ≥ secondary 182 (58.0) 17 (50.0) Reference
 < secondary 132 (42.0) 17 (50.0) 1.37 (0.67,2.80)
Occupation
 Housewife 266 (84.7) 28 (82.4) Reference
 Employee 48 (15.3) 6 (17.6) 1.18 (0.46,3.02)
History of preeclampsia
 No 46 (14.6) 8 (23.5) Reference
 Yes 268 (85.4) 26 (76.5) 0.73 (0.38,1.39)
History of miscarriage
 No 235 (73.3) 20 (58.8) Reference
 Yes 79 (25.2) 14 (41.2) 1.08 (0.98,1.19)
Body mass index groups
 Underweight and normal weight 123 (39.1) 11 (32.3) Reference
 Overweight 126 (40.1) 13 (38.2) 0.92 (0.44,1.91)
 Obese 65 (20.7) 10 (29.4) 1.59 (0.69,3.46)