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Table 3 Maternal reproductive history and interaction with midwifery services 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
Gravida 1 261 (25.5) 9237 (43.3) < 0.001
2 206 (20.1) 5665 (26.5)  
3 172 (16.8) 3147 (14.7)  
> = 4 385 (37.6) 3307 (15.5)  
Parity 1 309 (30.8) 10,747 (51.1) < 0.001
2 232 (23.1) 6035 (28.7)  
> = 3 463 (46.1) 4257 (20.2)  
Gestational age at initial assessment 1st trimester 659 (63.5) 18,506 (84.4) < 0.001
2nd trimester 311 (30.0) 2757 (12.6)  
3rd trimester 68 (6.6) 654 (3.0)  
Gestational age at initial assessment (mean (SD))   13.3 (7.5) 10.5 (5.5) < 0.001
  1. Missing data (n): Gravida (cohort: 87; comparison 2058); Parity (cohort: 107; comparison: 2357); Gestational age at initial assessment (cohort: 73; comparison: 1497)
  2. Chi-squared analyses were used to compare differences between the cohort and matched comparison groups for all variables in this table