Table 3 Summary statistics of OASIS variables in train and test sets
Variable | Train (n = 22,318) | Test (n = 9566) | ||||
|---|---|---|---|---|---|---|
Survivals (n = 19,953) | Non-survivals (n = 2365) | p value | Survivals (n = 8560) | Non-survivals (n = 1006) | p value | |
Age | 64 (51–75) | 71 (58–80) | < 0.001 | 63 (51–75) | 71.5 (60–80) | < 0.001 |
GCS | 15 (14–15) | 15 (13–15) | < 0.001 | 15 (14–15) | 15 (12–15) | < 0.001 |
Heart rate | 101 (90–115) | 111 (95–128) | < 0.001 | 101 (90–115) | 110 (94–126) | < 0.001 |
Mean blood pressure | 59.67 (52.67–86) | 55 (47–82) | < 0.001 | 59 (53–86) | 55 (47–81.21) | < 0.001 |
Respiratory rate | 26 (18.5–30) | 28 (24–33) | < 0.001 | 26 (18–30) | 28 (24–33) | < 0.001 |
Temperature | 36.17 (35.7–37.5) | 36 (35.44–37.5) | < 0.001 | 36.17 (35.72–37.5) | 36.06 (35.5–37.71) | < 0.001 |
Urine output | 1895 (1245–2770) | 1189 (645–2050) | < 0.001 | 1900 (1235–2785) | 1167 (640.5–1972.5) | < 0.001 |
Pre-ICU-LoS | 0 (0–18) | 0 (0–23) | < 0.001 | 0 (0–17) | 0 (0–27) | 0.12 |
ventilated?: Yes | 9723 (48.73%) | 1570 (66.38%) | < 0.001 | 4186 (48.9%) | 676 (67.2%) | < 0.001 |
Elective surgery?: Yes | 3357 (16.82%) | 76 (3.21%) | < 0.001 | 1367 (15.97%) | 38 (3.78%) | < 0.001 |