Table 2 Prediction accuracy of variables at 24th hour and 48th hour in development datasets (MIMIC-III)
Variable name | 24th hour | 48th hour | ||||||
|---|---|---|---|---|---|---|---|---|
True value | Predicted value | Difference (95% CI) | Difference ratio (95% CI)a | True value | Predicted value | Difference (95% CI) | Difference ratio (95% CI)a | |
Temperature, ℃ | 37.23 ± 0.72 | 37.31 ± 0.24 | − 0.09 (− 0.12, − 0.06) | − 0.3 (− 0.4, − 0.2) | 37.22 ± 0.80 | 37.36 ± 0.21 | − 0.14 (− 0.18, − 0.10) | − 0.4 (− 0.5, − 0.3) |
Respiratory rate, beat Per Minute | 19.32 ± 4.77 | 18.93 ± 2.00 | 0.38 (0.21, 0.55) | − 2.6 (− 3.5, − 1.6) | 19.92 ± 5.35 | 19.40 ± 1.42 | 0.52 (0.27, 0.77) | − 3.6 (− 4.9, − 2.2) |
Heart Rate, beat Per Minute | 88.73 ± 15.36 | 87.39 ± 9.71 | 1.34 (0.84, 1.84) | − 0.3 (− 0.9, 0.3) | 89.25 ± 16.58 | 87.16 ± 7.36 | 2.08 (1.38, 2.79) | − 0.3 (− 1.1, 0.6) |
Systolic pressure, mmHg | 127.49 ± 16.46 | 127.70 ± 5.61 | − 0.21 (− 0.84, 0.42) | − 1.6 (− 2.2, − 1.1) | 128.22 ± 17.70 | 127.55 ± 4.01 | 0.68 (− 0.21, 1.56) | − 1.3 (− 2.0, − 0.6) |
Diastolic pressure, mmHg | 63.48 ± 10.84 | 63.22 ± 5.47 | 0.26 (− 0.13, 0.65) | − 1.8 (− 2.5, − 1.2) | 63.66 ± 11.88 | 62.62 ± 4.84 | 1.03 (0.47, 1.59) | − 1.3 (− 2.2, − 0.4) |
GCS | 11.63 ± 2.98 | 12.10 ± 2.29 | − 0.48 (− 0.58, − 0.38) | − 9.9 (− 11.3, − 8.5) | 10.98 ± 3.16 | 11.55 ± 2.02 | − 0.57 (− 0.71, − 0.43) | − 14.3 (− 16.5, − 12.2) |
Leukocyte count, K/uL | 12.04 ± 4.91 | 10.97 ± 4.03 | 1.07 (0.94, 1.21) | 4.2 (3.2, 5.3) | 12.32 ± 5.01 | 11.18 ± 3.77 | 1.13 (0.93, 1.33) | 2.3 (0.8, 3.9) |
Platelet count, K/uL | 263.17 ± 160.94 | 266.39 ± 171.15 | − 3.22 (− 5.69, − 0.75) | − 2.9 (− 3.9, − 1.9) | 278.86 ± 179.24 | 312.20 ± 194.47 | − 33.34 (− 38.12, − 28.57) | − 17.8 (− 19.7, − 15.8) |
Hematocrit, % | 31.26 ± 5.51 | 30.06 ± 4.16 | 1.20 (1.06, 1.34) | 2.8 (2.4, 3.2) | 30.22 ± 4.90 | 29.21 ± 3.43 | 1.01 (0.82, 1.20) | 2.0 (1.4, 2.7) |
Bilirubin, mg/dL | 0.95 ± 1.80 | 0.96 ± 1.65 | − 0.01 (− 0.03, 0.01) | − 7.1 (− 9.0, − 5.1) | 1.03 ± 1.95 | 1.01 ± 1.84 | 0.02 (− 0.01, 0.05) | − 6.1 (− 9.4, − 2.8) |
Blood glucose, mg/dL | 130.98 ± 37.38 | 124.59 ± 20.34 | 6.39 (4.97, 7.81) | 1.5 (0.7, 2.3) | 133.98 ± 37.85 | 125.43 ± 15.97 | 8.55 (6.68, 10.41) | 2.6 (1.6, 3.6) |
Sodium, mEq/L | 139.76 ± 4.20 | 139.20 ± 3.83 | 0.56 (0.44, 0.69) | 0.4 (0.3, 0.5) | 139.82 ± 4.34 | 139.38 ± 3.73 | 0.44 (0.25, 0.63) | 0.3 (0.1, 0.4) |
Potassium, mEq/L | 4.00 ± 0.44 | 3.93 ± 0.28 | 0.06 (0.04, 0.08) | 0.7 (0.3, 1.1) | 4.01 ± 0.44 | 3.94 ± 0.22 | 0.07 (0.05, 0.09) | 0.8 (0.2, 1.3) |
PH value | 7.40 ± 0.05 | 7.41 ± 0.03 | − 0.01 (− 0.01, − 0.01) | − 0.1 (− 0.1, − 0.1) | 7.41 ± 0.06 | 7.42 ± 0.02 | − 0.01 (− 0.01, − 0.01) | − 0.2 (− 0.2, − 0.1) |
Creatinine, mg/dL | 0.89 ± 1.17 | 0.81 ± 0.96 | 0.08 (0.02, 0.13) | 2.1 (− 3.9, 8.1) | 0.90 ± 1.46 | 0.79 ± 0.93 | 0.10 (0.02, 0.19) | 2.6 (− 4.7, 9.9) |
Urea nitrogen, mg/dL | 17.98 ± 12.72 | 17.03 ± 12.64 | 0.95 (0.76, 1.13) | 3.8 (2.7, 4.9) | 19.76 ± 14.42 | 18.94 ± 13.65 | 0.82 (0.45, 1.20) | − 1.2 (− 3.2, 0.8) |
Central venous pressure, mmHg | 8.70 ± 2.11 | 8.84 ± 1.29 | − 0.13 (− 0.20, − 0.06) | − 5.5 (− 7.1, − 3.9) | 8.95 ± 2.31 | 9.10 ± 1.17 | − 0.15 (− 0.26, − 0.05) | − 7.5 (− 9.5, − 5.6) |
PO2/FIO2 Ratio, mmHg | 283.22 ± 78.87 | 266.62 ± 43.22 | 16.61 (13.55, 19.66) | 1.3 (0.2, 2.4) | 281.52 ± 98.74 | 257.19 ± 29.49 | 24.32 (19.62, 29.03) | 0.1 (− 1.5, 1.7) |