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Table 2 Interventions during labour and delivery and infant outcome1).

From: Special features of health services and register based trials – experiences from a randomized trial of childbirth classes

   

Crude

Marital status adjusted1)

 

Intervention

Control

OR (95% CI)

OR1 (95% CI)

 

(n = 845)

(n = 723)

  

Mode of delivery

%

%

  

   C-section (any)

19

16

1.29 (0.99–1.67)

1.29 (0.99–1.68)

Planned

7

6

1.18 (0.78–1.79)

1.20 (0.79–1.82)

Other

13

10

1.31 (0.95–1.79)

1.30 (0.95–1.78)

   Instrumental

7

6

1.05 (0.70–1.56)

1.01 (0.68–1.52)

   Vaginal

74

78

0.81 (0.64–1.02)

0.81 (0.64–1.03)

  1. 1) Crude odds ratios (95% confidence intervals, CI) and odds ratios adjusted for marital status and birthweight. In adjustment for marital status classes used were: married, common law, other.