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Table 2 Measures of mother health and wellbeing for the cohort (n = 1111) and comparison group (n = 23,414)

From: Maternal health, pregnancy and birth outcomes for women involved in care proceedings in Wales: a linked data study

Variable Level Cohort n (%) Comparison n (%) p-value
Self-reported mental health No 479 (46.8) 17,584 (81.1) < 0.001
Yes 544 (53.2) 4087 (18.9)  
Mental health-related contacts or admissions during pregnancy (within 9 months of birth)
 GP records No 913 (82.2) 22,156 (94.6) < 0.001
Yes 198 (17.8) 1258 (5.4)  
 PEDW records No 950 (85.5) 22,574 (96.4) < 0.001
Yes 161 (14.5) 840 (3.6)  
 GP or PEDW records No 793 (71.4) 21,498 (91.8) < 0.001
Yes 318 (28.6) 1916 (8.2)  
Mental health-related contacts or admissions within 2 years prior to birth
 GP records No 633 (57.0) 19,575 (83.6) < 0.001
Yes 478 (43.0) 3839 (16.4)  
 PEDW records No 882 (79.4) 22,265 (95.1) < 0.001
Yes 229 (20.6) 1149 (4.9)  
 GP or PEDW records No 536 (48.2) 18,989 (81.1) < 0.001
Yes 575 (51.8) 4425 (18.9)  
Substance use-related contacts or admissions during pregnancy (within 9 months of birth)
 GP records No 1,026 (92.3) 23,331 (99.6) < 0.001
Yes 85 (7.7) 83 (0.4)  
 PEDW records No 1,050 (94.5) 23,358 (99.8) < 0.001
Yes 61 (5.5) 56 (0.2)  
 GP or PEDW records No 995 (89.6) 23,285 (99.4) < 0.001
Yes 116 (10.4) 129 (0.6)  
Substance use-related contacts or admissions within 2 years prior to birth
 GP records No 959 (86.3) 23,190 (99.0) < 0.001
Yes 152 (13.7) 224 (1.0)  
 PEDW records No 999 (89.9) 23,195 (99.1) < 0.001
Yes 112 (10.1) 219 (0.9)  
 GP or PEDW records No 905 (81.5) 23,013 (98.3) < 0.001
Yes 206 (18.5) 401 (1.7)  
 Body mass index (BMI) Underweight 68 (6.9) 632 (3.0) < 0.001
Healthy weight 393 (39.9) 8844 (42.0)  
Overweight 245 (24.9) 5773 (27.4)  
Obese 221 (22.4) 4,847 (23.0)  
Morbidly obese 58 (5.9) 961 (4.6)  
 Smoker at initial assessment No 396 (37.3) 17,028 (75.2)  
Yes 667 (62.7) 5618 (24.8) < 0.001
 Smoker at birth No 423 (40.4) 17,759 (78.4)  
Yes 624 (59.6) 4879 (21.6) < 0.001
 Intention to breastfeed No 685 (64.3) 10,584 (46.8)  
Yes 380 (35.7) 12,037 (53.2) < 0.001
  1. Missing data (n): Self-reported mental health (cohort: 88; comparison 1743); BMI (cohort: 126; comparison: 2357); Smoking status at initial assessment (cohort: 48; comparison 768); Smoking status at birth (cohort: 64; comparison 776); Intention to breastfeed (cohort: 46; comparison 793)
  2. Chi-squared analyses were used to compare differences between the cohort and matched comparison groups for all variables in this table