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Table 6 Adjusted odds ratio of low birth weight < 1500 g 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 = 66192) N Adjusted ORa (95 % CI) (n = 62,894) N Adjusted ORa (95 % CI) (n = 18,679) N
1 0.98 (0.24, 3.99) 308 0.37 (0.52, 2.65) 592  
2 1.73 (1.01, 2.94) 1286 0.69 (0.17, 2.80) 617 0.60 (0.08, 4.39) 99
3 1.15 (0.75, 1.76) 2908 0.91 (0.45, 1.85) 1882 1.37 (0.69, 2.72) 1772
4 1.10 (0.81, 1.48) 6681 0.72 (0.38, 1.36) 2953  
5 0.98 (0.80, 1.21) 21162 0.89 (0.59, 1.32) 6772 0.72 (0.37, 1.39) 993
6 0.93 (0.62, 1.38) 3856 0.83 (0.56, 1.24) 7162  
7 1.63 (0.51, 5.14) 262 0.91 (0.51, 1.64) 2763 0.56 (0.24, 1.30) 440
8 1.0 29729 1.0 38867 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)