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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)