Table 2. Summary statistics of clinical and demographic variables for eligible patients, broken down by 30-day mortality group with p-values from hypothesis tests for comparing variable values between groups.
| Survived | Expired | p-value | |
|---|---|---|---|
| Number of patients | 24448 | 3029 | - |
| Mean sentiment polarity (mean [standard deviation]) | 0.072 | 0.041 | < 0.001 |
| Mean sentiment subjectivity (mean [standard deviation]) | 0.367 | 0.370 | 0.017 |
| ICU type | < 0.001 | ||
| CCU (%) | 15.69 | 15.55 | |
| CSRU (%) | 22.95 | 6.80 | |
| MICU (%) | 32.34 | 48.93 | |
| SICU (%) | 15.07 | 17.33 | |
| TSICU (%) | 13.96 | 11.39 | |
| SAPS-II (mean [standard deviation]) | 32.02 [12.82] | 46.94 [14.37] | < 0.001 |
| Age (mean [standard deviation]) | 62.47 [17.80] | 71.85 [15.75] | < 0.001 |
| Gender (Female) (%) | 42.48 | 46.72 | < 0.001 |
| Number of nursing notes during first admission (mean [standard deviation]) | 16.68 [28.91] | 20.85 [23.71] | < 0.001 |