| 变量 | 人数 | OR | 95% CI | p | p for interaction |
| 性别 | 0.911 | ||||
| 男性 | 1045 | 1.024 | 1.014~1.034 | <0.001 | |
| 女性 | 1065 | 1.025 | 1.015~1.034 | <0.001 | |
| 年龄 | 0.764 | ||||
| ≤51岁 | 1081 | 1.023 | 1.011~1.034 | <0.001 | |
| >51岁 | 1029 | 1.02 | 1.01~1.033 | <0.001 | |
| 基础疾病 | 0.804 | ||||
| 未合并基础疾病 | 1340 | 1.024 | 1.015~1.033 | <0.001 | |
| 合并基础疾病 | 770 | 1.022 | 1.011~1.033 | <0.001 | |
| 呼吸频率 | 0.106 | ||||
| ≤19次/分 | 1159 | 1.03 | 1.02~1.04 | <0.001 | |
| >19次/分 | 951 | 1.019 | 1.01~1.028 | <0.001 | |
| 钾离子 | 0.274 | ||||
| <3.84 mmol/L | 1054 | 1.021 | 1.012~1.03 | <0.001 | |
| ≥3.84 mmol/L | 1056 | 1.029 | 1.019~1.039 | <0.001 | |
| 尿素氮 | 0.009 | ||||
| ≤5.54 mmol/L | 1056 | 1.036 | 1.024~1.049 | <0.001 | |
| >5.54 mmol/L | 1054 | 1.017 | 1.009~1.025 | <0.001 | |
| 肌酐 | 0.459 | ||||
| ≤71.6 umol/L | 1056 | 1.027 | 1.017~1.038 | <0.001 | |
| >71.6 umol/L | 1054 | 1.022 | 1.013~1.031 | <0.001 | |
| 血红蛋白 | 0.68 | ||||
| ≤134 g/L | 1083 | 1.023 | 1.014~1.031 | <0.001 | |
| >134 g/L | 1027 | 1.026 | 1.015~1.037 | <0.001 |