Table 4 The demographic and perioperative data before and after PSM
Variables | Before PSM | After PSM | ||||
|---|---|---|---|---|---|---|
Hb * SpO2 < aaHb (n = 263) | Hb * SpO2 ≥ aaHb (n = 333) | P | Hb * SpO2 < aaHb (n = 86) | Hb * SpO2 ≥ aaHb (n = 86) | P | |
Age (m) | 9.1(6.9,12.9) | 9.9(7,17.4) | 0.038 | 9.6(7.2,17.4) | 9.9(6.2,13.6) | 0.337 |
PDA | 32(12.2%) | 30(9%) | 0.21 | 8(9.3%) | 10(11.6%) | 0.618 |
SpO2 < 90% | 174(66.2%) | 151(45.3%) | < 0.001 | 43(50%) | 51(59.3%) | 0.22 |
Hb(g/L) | 112(102,125) | 140(130,157) | < 0.001 | 124(111,145) | 135(122,141) | 0.176 |
CPB time (min) | 96(80,118) | 100(85,124) | 0.113 | 92(76,116) | 106(80,132) | 0.063 |
ACC time (min) | 65(55,84) | 70(56,88) | 0.222 | 64(53,82) | 70(54,94) | 0.276 |
T min (℃) | 30 (29, 30) | 30 (28, 30) | 0.057 | 30(29,31) | 29(27,30) | 0.126 |
TAP | 46/217 | 68/265 | 0.402 | 12/74 | 15/71 | 0.529 |