Table 2.
Demographic characteristics and survival of patients undergoing prolonged mechanical ventilation stratified by different underlying diseases
| Number of cases | Mean age (SD) | Female (%) | Median survival (years) | Life expectancy (SE) (years) | |
|---|---|---|---|---|---|
| Cases with single specific disease | 21,316 | 69 (15) | 38 | 0.35 | 3.40 (0.09) |
| Cancer | 5,367 | 70 (14) | 33 | 0.17 | 1.51 (0.13) |
| Chronic renal failure | 2,032 | 73 (12) | 51 | 0.78 | 1.36 (0.16) |
| Liver cirrhosis | 1,478 | 65 (17) | 35 | 0.19 | 3.59 (0.33) |
| Multiple sclerosis or degenerative nervous system conditions | 378 | 65 (17) | 39 | 0.89 | 4.05 (0.64) |
| Parkinson's disease | 341 | 79 (7) | 36 | 0.85 | 2.06 (0.30) |
| Stroke | 6,765 | 70 (13) | 42 | 0.72 | 3.38 (0.15) |
| Aged <64 years | 1,955 | 53 (9) | 35 | 1.65 | 5.21 (0.39) |
| Aged 65 to 74 years | 1,818 | 70 (3) | 43 | 0.77 | 2.98 (0.17) |
| Aged 75 to 84 years | 2,176 | 79 (3) | 44 | 0.56 | 2.09 (0.13) |
| Aged >85 years | 816 | 88 (3) | 54 | 0.39 | 1.68 (0.13) |
| Intracranial and/or spinal cord injury or poisoning | 4,955 | 65 (19) | 34 | 1.06 | 6.27 (0.24) |
| Aged <64 years | 1,949 | 45 (14) | 26 | 6.20 | 10.20 (0.49) |
| Aged 65 to 74 years | 1,116 | 70 (3) | 39 | 0.82 | 3.77 (0.22) |
| Aged 75 to 84 years | 13,66 | 79 (3) | 35 | 0.47 | 2.67 (0.19) |
| Aged >85 years | 524 | 88 (3) | 48 | 0.33 | 1.82 (0.13) |
| Cases with more than two specific diseases | 4,772 | 68 (15) | 39 | 0.32 | 2.96 (0.13) |
| Cancer and chronic renal failure | 165 | 71 (11) | 44 | 0.14 | 1.21 (0.45) |
| Cancer and others | 1,609 | 70 (14) | 35 | 0.19 | 1.88 (0.22) |
| Chronic renal failure and others | 743 | 70 (13) | 50 | 0.21 | 1.71 (0.28) |
SD, standard deviation; SE, standard error of the mean.