Time to death < 1 h (76) | Time to death ≧ 1 h (64) | Statistics | Time to death < 1 d (105) | Time to death ≧ 1 d (35) | Statistics | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
n | % | n | % | χ2 | pa | n | % | n | % | χ2 | pa | |
Demographics | ||||||||||||
Gender (male) | 44 | 50.6 | 43 | 49.4 | 1.275 | 0.259 | 63 | 72.4 | 24 | 27.6 | 0.820 | 0.365 |
Education (more than high school) | 76 | 54.3 | 64 | 45.7 | 2.417 | 0.120 | 105 | 75.0 | 35 | 25.0 | 0.039 | 0.843 |
Medical service | 46 | 51.7 | 43 | 48.3 | 0.666 | 0.415 | 65 | 73.0 | 24 | 27.0 | 0.504 | 0.478 |
Surgical service | 30 | 58.8 | 21 | 41.2 | 0.666 | 0.415 | 40 | 78.4 | 11 | 21.6 | 0.504 | 0.478 |
DNR signed before family meeting | 76 | 54.3 | 64 | 45.7 | 0.259 | 0.611 | 105 | 75.0 | 35 | 25.0 | 2.143 | 0.143 |
Comorbidities | ||||||||||||
Cerebrovascular disease | 51 | 66.2 | 26 | 33.8 | 9.843 | 0.002 | 58 | 75.3 | 19 | 24.7 | 0.010 | 0.922 |
Chronic respiratory disease | 26 | 44.1 | 33 | 55.9 | 4.290 | 0.038 | 45 | 76.3 | 14 | 23.7 | 0.088 | 0.767 |
Diabetes | 32 | 56.1 | 25 | 43.9 | 0.133 | 0.751 | 40 | 70.2 | 17 | 29.8 | 1.194 | 0.275 |
Congestive heart failure | 40 | 52.6 | 36 | 47.4 | 0.183 | 0.669 | 55 | 72.4 | 21 | 27.6 | 0.614 | 0.433 |
Chronic liver disease | 23 | 53.5 | 20 | 46.5 | 0.016 | 0.900 | 32 | 74.4 | 11 | 25.6 | 0.011 | 0.916 |
Advanced malignancy | 22 | 41.5 | 31 | 58.5 | 5.610 | 0.018 | 39 | 73.6 | 14 | 26.4 | 0.091 | 0.763 |
Renal failure | 37 | 57.8 | 27 | 42.2 | 0.591 | 0.442 | 41 | 73.4 | 17 | 26.6 | 0.154 | 0.695 |
Physiological variables | ||||||||||||
Organ donor consideration | 4 | 50.0 | 4 | 50.0 | 0.063 | 1.000 | 5 | 62.5 | 3 | 37.5 | 0.707 | 0.412 |
Nutrition within 24 h | 57 | 51.8 | 53 | 48.2 | 1.259 | 0.262 | 81 | 73.6 | 29 | 26.4 | 0.509 | 0.476 |
Dialysis within 3 days | 12 | 60.0 | 8 | 40.0 | 0.307 | 0.580 | 15 | 75.0 | 5 | 25.0 | 0.000 | 1.000 |
Presence of IABP | 4 | 66.7 | 2 | 33.3 | 0.387 | 0.668 | 5 | 83.3 | 1 | 16.7 | 0.232 | 1.000 |
SpO2 ≥ 96 (%) | 35 | 46.1 | 41 | 53.9 | 4.541 | 0.033 | 50 | 65.8 | 26 | 34.2 | 7.522 | 0.006 |
SpO2 ≥ 99 (%) | 16 | 59.3 | 11 | 40.7 | 0.333 | 0.567 | 18 | 66.7 | 9 | 33.3 | 1.239 | 0.266 |
Respiratory variables | ||||||||||||
Tracheostomy | 4 | 40.0 | 6 | 60.0 | 0.886 | 0.512 | 7 | 70.0 | 3 | 30.0 | 0.144 | 0.711 |
Minute ventilation ≥ 12 (L/min) | 53 | 46.5 | 61 | 53.5 | 15.028 |  < 0.001 | 81 | 71.7 | 33 | 28.9 | 5.101 | 0.024 |
Spontaneous breathing trail in 24 h | 5 | 8.8 | 52 | 91.2 | 80.255 |  < 0.001 | 24 | 42.1 | 33 | 57.9 | 55.485 |  < 0.001 |
Medications prior to extubation | ||||||||||||
Opioids use in 24 h | 54 | 54.8 | 47 | 46.2 | 0.098 | 0.754 | 76 | 75.2 | 25 | 24.8 | 0.012 | 0.913 |
BZD use in 24 h | 38 | 47.5 | 42 | 52.5 | 3.464 | 0.063 | 60 | 75.0 | 20 | 25.0 | 0.000 | 1.000 |
Propofol use in 24 h | 15 | 53.6 | 13 | 46.4 | 0.007 | 0.932 | 19 | 67.9 | 9 | 32.1 | 0.952 | 0.329 |
Inotropic agents use in 12 h | 21 | 84.0 | 4 | 16.0 | 10.828 | 0.001 | 25 | 100.0 | 0 | 0.0 | 10.145 | 0.001 |
APACHE II score at extubation | ||||||||||||
 ≥ 25 | 74 | 73.3 | 27 | 26.7 | 52.640 |  < 0.001 | 80 | 79.2 | 21 | 20.8 | 3.424 | 0.064 |
 ≥ 30 | 55 | 80.9 | 13 | 19.1 | 37.690 |  < 0.001 | 55 | 80.9 | 13 | 19.1 | 2.440 | 0.118 |