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Table 4 Adjusted odds ratio for perinatal mortalitya 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 ORb (95 % CI) (n = 66713) N Adjusted ORb (95 % CI) (n = 61,991) N Adjusted ORb (95 % CI) (n = 18,769) N
1 1.40 (0.44, 4.39) 310 2.84 (1.58, 5.10) 601  
2 1.35 (0.77, 2.38) 1297 1.33 (0.59, 3.01) 623 N/A 99
3 1.50 (1.03, 2.18) 2940 0.79 (0.43, 1.45) 1892 0.66 (0.38, 1.14) 1772
4 1.23 (0.92, 1.64) 6750 1.12 (0.73, 1.70) 2976  
5 1.12 (0.91, 1.36) 21362 1.07 (0.79, 1.44) 6814 0.82 (0.38, 1.78) 993
6 0.88 (0.58, 1.32) 3884 1.07 (0.80, 1.42) 7206  
7 1.53 (0.49, 4.83) 264 0.96 (0.61, 1.51) 2778 0.60 (0.23, 1.65) 440
8 1.0 29906 1.0 39101 1.0 15465
  1. aPerinatal mortality = stillbirths + neonatal deaths up to 7 days
  2. bAdjusted for maternal age (<18, >35), parity, previous C-section, prior neonatal death, prior still birth, diabetes (existing & gestational), hypertension (existing & gestational)