| routine MH group (N = 46) | control group (N = 47) | P-value |
---|---|---|---|
No atelectasis | 8 (17) | 0 (0) | P = 0.002 |
Plate/subsegmental atelectasis | 20 (44) | 22 (47) | P = 0.10 |
Segmental atelectasis (one of two segments) | 18 (39) | 23 (49) | P = 0.55 |
Lobar atelectasis | 0 (0) | 2 (4) | P = 0.16 |