2.
MPP组和非MPP组入院次日肺功能参数的比较 [M（P25，P75）或x±s]
| 肺功能参数 | 非MPP组 (n=93) |
MPP组 (n=187) |
t/Z值 | P值 |
| 注：[VPTEF/VE]达峰容积比；[TPTEF/TE]达峰时间比；[PF/TEF25]潮气峰流量与呼出75%潮气量时呼气流量比；[TI/TE]吸呼比；[RR]呼吸频率；[PEF]潮气峰流量；[TEF75/TEF50/TEF25]呼出25%/50%/75%潮气量时呼气流量；[VT/kg]公斤潮气量；[Reff]有效气道阻力；[FRCp/kg]公斤功能残气量。#非MPP组和MPP组检测例数分别为71例和81例。 | ||||
| VPTEF/VE (%) | 24.6(20.5, 34.6) | 19.9(16.9, 24.4) | 3.76 | < 0.001 |
| TPTEF/TE (%) | 23.5(16.6, 33.7) | 17.2(13.6, 21.7) | 4.12 | < 0.001 |
| PF/TEF25 (%) | 135.1(125.3, 156.7) | 175.9(154.5, 224.8) | 5.13 | < 0.001 |
| TI/TE (%) | 72±9 | 63±12 | 4.76 | < 0.001 |
| RR (次/min) | 37.6(32.6, 41.2) | 45.4(40.5, 54.7) | 5.43 | < 0.001 |
| PEF (mL/s) | 85.3(76.8, 100.2) | 96.5(80.4, 116.2) | 3.52 | < 0.001 |
| TEF75 (mL/s) | 82.7(70.6, 95, 4) | 92.9(79.2, 112.6) | 4.27 | < 0.001 |
| TEF50 (mL/s) | 79.2(67.4, 90.1) | 77.5(67.3, 89.6) | 0.20 | 0.58 |
| TEF25 (mL/s) | 64 ± 12 | 54±12 | 5.45 | < 0.001 |
| VT/kg (mL) | 7.9(6.9, 8.8) | 7.2(6.4, 8.0) | 2.75 | 0.003 |
| Reff [kPa/(s · mL)]# | 1.1(0.6, 1.6) | 2.6(1.6, 3.9) | 3.71 | < 0.001 |
| FRCp/kg (mL)# | 21.7(17.6, 24.4) | 29.2(23.4, 36.7) | 4.34 | < 0.001 |