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Table 7 Adjusted odds ratio of caesarean section by level of service, by jurisdiction

From: The safety of Canadian rural maternity services: a multi-jurisdictional cohort analysis

  Alberta British Columbia Nova Scotia
Service level Adjusted ORa (95 % CI) (n = 66713) N Adjusted ORa (95 % CI) (n = 63,277) N Adjusted ORa (95 % CI) (n = 18,766) N
1 0.64 (0.48, 0.87) 310 0.70 (0.57, 0.85) 601  
2 0.67 (0.58, 0.77) 1297 0.74 (0.61, 0.90) 623 0.67 (0.40, 1.10) 99
3 0.86 (0.78, 0.94) 2940 0.92 (0.83, 1.03) 1892 0.87 (0.77, 0.98) 1772
4 0.81 (0.76, 0.86) 6750 0.84 (0.78, 0.92) 2976  
5 1.07 (1.03, 1.12) 21362 0.91 (0.86, 0.96) 6814 1.08 (0.93, 1.24) 993
6 0.91 (0.84, 0.99) 3884 0.95 (0.89, 1.00) 7206  
7 1.29 (0.99, 1.69) 264 1.19 (1.09, 1.29) 2778 0.91 (0.73, 1.14) 440
8 1.0 29906 1.0 39101 1.0 15462
  1. aAdjusted for maternal age (<18, >35), parity, previous C-section, prior neonatal death, prior still birth, diabetes (existing & gestational), hypertension (existing & gestational)