组别 | 5级 | 4级 | 3级 | 2级 | 1级 | 0级 | x²/P |
肺部感染 | 2 (15.38%) | 3 (16.66%) | 2 (10%) | 4 (30.77%) | 5 (33.33%) | 7 (63.63%) | 13.05/0.02 |
呼吸衰竭 | 0 (0%) | 1 (12.5%) | 0 (0%) | 1 (7.69%) | 2 (13.33%) | 3 (27.27%) | 9.38/0.09 |