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Table 1 Maternal characteristics in the study population, n = 3238

From: Alcohol consumption and binge drinking in early pregnancy. A cross-sectional study with data from the Copenhagen Pregnancy Cohort

Characteristics Total, n (%)
Maternal age (years)  
 <24 97 (3)
 25-29 774 (24)
 30-34 1363 (42)
 35-39 789 (24)
 ≥40 215 (7)
 Mean (SD) 32 (5)
Missing data; 0  
Parity  
 Nulliparous 1960 (61)
 Multiparous 1278 (39)
Missing data. O  
Danish language skills  
 Yes 3068 (96)
 No 132 (4)
Missing data: 38  
Cohabitation  
 Yes 2949 (93)
 No 236 (7)
Missing data; 53  
Education  
 Compulsory school 194 (7)
 Skilled 106 (4)
 Tertitary 210 (7)
 Bachelor or equivalent 897 (31)
 Master or equivalent 1451 (51)
Missing data: 380  
Occupation  
 Working 2066 (71)
 Unemployed 166 (6)
 Student 464 (16)
 Othera 206 (7)
Missing data: 336  
BMI (kg/m2)  
 Underweight (<18.5) 154 (5)
 Normal (18.5-24.9) 2291 (77)
 Overweight (25–29.9) 398 (14)
 Obese (>30) 126 (4)
 Mean (SD) 23 (4)
Missing data: 269  
Chronic illness  
 Yes 272 (9)
 No 2399 (82)
 Other illnessb 255 (9)
Missing data: 312  
  1. a Including stay at home, pensioners, maternity leave
  2. bE.g.: asthma, polycystic ovary syndrome, migraine