Group | I (n = 63) | II (n = 60) | III (n = 62) | IV (n = 68) | x2 | P |
---|---|---|---|---|---|---|
WBC > 106 (n = 53) | 10/63 (15.8%) | 20/60 (33.3%)* | 17/62 (27.3%) | 6/68 (8.8%) | 12.6 | 0.005* |
WBC < 106 (n = 200) | 53/63 (84.2%) | 40/60 (66.7%) | 45/62 (72.7%) | 62/68 (91.2%) |  |  |