| 项目 | 非肺出血组 (%) (n = 131例) | 肺出血组 (%) (n = 131例) | χ2/t/z值 | P值 |
| 女性 | 60/131 (45.8) | 48/131 (36.6) | 2.268 | 0.132 |
| 胎龄 | 33.0 ± 2.2 | 30.8 ± 2.4 | 7.399 | 0.000 |
| 出生体重 | 1934.3 ± 454.5 | 1463.2 ± 452.8 | 8.405 | 0.000 |
| 1 min Apgar评分 | 9 (8, 9) | 7 (5, 8) | 0.448 | 0.000 |
| 5 min Apgar评分 | 10 (9, 10) | 9 (8, 9) | 1.724 | 0.087 |
| 宫内窘迫 | 26/131 (19.8) | 37/131 (28.2) | 2.529 | 0.112 |
| 羊水粪染 | 8/131 (6.1) | 8/131 (6.1) | 0.000 | 1.000 |
| 剖宫产 | 104/131 (79.4) | 103/131 (78.6) | 0.023 | 0.879 |
| 孕母资料 |
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| 高龄(≥35岁) | 19/131 (14.5) | 23/131 (17.6) | 0.454 | 0.501 |
| 胎膜早破时长(小时) | 22.0 ± 57.4 | 18.5 ± 70.2 | 0.448 | 0.654 |
| 妊娠期高血压疾病 | 17/131 (13.0) | 39/131 (29.8) | 10.992 | 0.001 |
| 妊娠期糖尿病 | 31/131 (23.7) | 38/131 (29.0) | 0.964 | 0.326 |
| 产前使用抗生素 | 40/131 (30.5) | 23/131 (17.6) | 6.040 | 0.014 |
| 产前感染 | 39/131 (29.8) | 37/131 (28.2) | 0.074 | 0.785 |
| 产前使用激素 | 91/131 (69.5) | 95/131 (72.5) | 0.297 | 0.586 |
| RDS | 53/131 (40.5) | 116/131 (88.5) | 66.163 | 0.000 |
| BPD | 13/131 (9.9) | 50/131 (38.2) | 28.610 | 0.000 |
| 新生儿窒息 | 13/131 (9.9) | 52/131 (39.7) | 31.121 | 0.000 |
| PDA | 26/131 (19.8) | 93/131 (71.0) | 69.114 | 0.000 |
| 新生儿败血症 | 34/131 (26.0) | 89/131 (67.9) | 46.356 | 0.000 |
| 凝血功能障碍 | 11/131 (8.4) | 54/131 (41.2) | 37.832 | 0.000 |
| 新生儿休克 | 1/131 (0.8) | 29/131 (22.1) | 29.513 | 0.000 |
| NEC | 13/131 (9.9) | 15/131 (11.5) | 0.160 | 0.689 |
| 重度肺动脉高压 | 5/131 (3.8) | 56/131 (42.7) | 55.580 | 0.000 |
| 重症肺炎合并呼吸衰竭 | 61/131 (46.6) | 114/131 (87.0) | 48.339 | 0.000 |
| 有创呼吸机使用时长 | 0 (0, 0) | 10 (6, 21) | −9.368 | 0.000 |
| 应用PS | 50/131 (38.2) | 104/131 (79.4) | 45.935 | 0.000 |