Table 4.
Type of duct dependent circulation | West Götaland | Other referring regions | Comparison |
---|---|---|---|
Systemic circulation | 5/30 (17) | 16/48 (33) | P=0.12 |
Lung and mixing circulation | 0/30 (0) | 12/52 (23) | P=0.0030 |
Total | 5/60 (8) | 28/100 (28) | P=0.0025; relative risk 3.36 (95% CI 1.37 to 8.24) |