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Table 2 Maternal characteristics of all women stratified by ethnicity

From: Antenatal depression and anxiety and early pregnancy BMI among White British and South Asian women: retrospective analysis of data from the Born in Bradford cohort

  Total n = 7824 White British n = 3514 South Asian n = 4310 p-valuep
BMI categories+ (n, %)
 Underweight 336 (4.3) 94 (2.7) 242 (5.6) < 0.0001**
 Recommended 2835 (36.2) 1514 (43.1) 1321 (30.6)  
 Overweight 2438 (31.2) 1003 (28.5) 1435 (33.3)  
 Obese 2215 (28.3) 903 (25.7) 1312 (30.4)  
  Class 1 1361 (17.4) 508 (14.5) 853 (19.8)  
  Class 2 589 (7.5) 264 (7.5) 325 (7.5)  
  Class 3 265 (3.4) 131 (3.7) 134 (3.1)  
 Age (mean, SD) Mean = 27.3 ± 0.1 26.6 ± 0.1 27.8 ± 0.1 < 0.0001**
Education level (n, %)
 None 1685 (21.5) 698 (19.9) 987 (22.9) < 0.0001**
 GCSE 2475 (31.6) 1192 (33.9) 1283 (29.8)  
 A-level 1235 (15.8) 645 (18.3) 590 (13.7)  
 Higher than A-Level 1924 (24.6) 678 (19.3) 1246 (28.9)  
Missing 505 (6.4) 301 (8.6) 204 (4.7)  
IMD level (n, %)
 Low deprivation 2696 (34.5) 1702 (48.4) 994 (23.1) < 0.0001**
 High deprivation 5125 (65.5) 1810 (51.5) 3315 (76.9)  
Missing 3 (0.04) 2 (0.1) 1 (0.02)  
Smoking status (n, %)
 Yes 1375 (17.6) 1217 (34.6) 158 (3.7) < 0.0001**
 No 6446 (82.4) 2295 (65.3) 4151 (96.3)  
Missing 3 (0.04) 2 (0.1) 1 (0.02)  
Depression (n, %)
 Yes 3158 (40.4) 1267 (36.1) 1891 (43.9) < 0.0001**
 No 4666 (59.6) 2247 (63.9) 2419 (56.1)  
Anxiety (n, %)
 Yes 3655 (46.7) 1701 (48.4) 1954 (45.3) 0.004**
 No 4113 (52.6) 1790 (22.9) 2323 (53.9)  
Missing 56 (0.7) 23 (0.3) 33 (0.8)  
  1. SD standard deviation
  2. GCSE The General Certificate of Secondary Education
  3. IMD Index of Multiple deprivation
  4. +White British BMI categories: Underweight, < 18.5 kg/m2; recommended weight, 18.5–24.9 kg/m2; overweight, 25–29.9 kg/m2; obese, ≥30 kg/m2; obese class 1, 30.0–34.9 kg/m2; obese class 2, 35.0–39.9 kg/m2; obese class 3, ≥40.0 kg/m2 South Asian BMI categories: underweight, < 18.5 kg/m2; recommended weight, 18.5–22.9 kg/m2; overweight, 23–27.49 kg/m2; obese, ≥27.5 kg/m2; obese class 1, 27.5–32.49 kg/m2, obese class 2, 32.5–37.49 kg/m2, obese class 3, ≥37.5 kg/m2
  5. **Significant at 0.01 significance level (two-tailed)
  6. pT-test for continuous variable and chi-squared with Fishers exact (where cell count < 5) for categorical variables
  7. Missing data not included in chi-squared analysis