Parameters | ISR (n = 56) | Non-ISR (n = 912) | OR(95%CI) | P |
---|---|---|---|---|
POD index tertiles | ||||
 T1 (< 5.18) | 7 (12.50) | 315 (34.54) | 1.00 (reference) |  |
 T2 (≥5.18 & < 5.60) | 17 (30.36) | 306 (33.55) | 2.50 (1.02–6.11) | 0.045* |
 T3 (≥5.60) | 32 (57.14) | 291 (31.91) | 4.95 (2.15–11.39) | 0.000* |