Table 5.
Balances between men and women after one-to-one matching by the propensity score*
| ARF patients | ARF patients with COPD | ARF patients with CHF | Other ARF patients | |||||
|---|---|---|---|---|---|---|---|---|
|
Women (n = 2390) |
Men (n = 2390) |
Women (n = 126) |
Men (n = 126) |
Women (n = 217) |
Men (n = 217) |
Women (n = 2037) |
Men (n = 2037) |
|
| Age, years | 70 (55-80) | 71 (56-79) | 78 (72-85) | 77 (70-83) | 76 (70-82) | 77 (68-82) | 69 (53-79) | 69 (53-78) |
| Surgical condition | 52.9 | 53.6 | 22.2 | 21.4 | 28.6 | 33.2 | 57.2 | 57.8 |
| Comorbidity | ||||||||
| Charlson Comorbid Index | 1 (0-2) | 1 (0-2) | 2 (1-2) | 1 (1-2) | 2 (1-3) | 2 (1-3) | 1 (0-2) | 1 (0-2) |
| COPD | 5.4 | 5.2 | - | - | 11.5 | 12.9 | - | - |
| Congestive heart failure | 10.5 | 10.0 | 19.0 | 20.6 | - | - | - | - |
| Cerebrovascular disease | 18.2 | 18.9 | 13.5 | 11.9 | 7.8 | 5.5 | 19.6 | 21.1 |
| Cancer | 12.9 | 12.9 | 4.0 | 4.8 | 4.1 | 5.1 | 14.5 | 14.5 |
| Principal diagnoses | ||||||||
| Respiratory | 20.9 | 20.3 | 65.1 | 65.9 | 32.3 | 30.9 | 17.4 | 18.0 |
| Neurological | 1.7 | 1.6 | 8.7 | 10.3 | 0 | 0 | 1.8 | 1.9 |
| Cardiovascular | 24.7 | 24.5 | 12.7 | 10.3 | 48.8 | 49.3 | 22.4 | 22.4 |
| Digestive | 8.5 | 8.6 | 4.8 | 5.6 | 4.1 | 3.2 | 9.1 | 9.3 |
| Genitourinary | 2.8 | 2.5 | 4.0 | 3.2 | 2.3 | 3.2 | 2.8 | 2.2 |
| Metabolic/endocrine | 1.9 | 1.7 | 0 | 0 | 0 | 0 | 2.2. | 1.7 |
| Injury/poisoning | 15.2 | 15.6 | 4.0 | 4.0 | 2.3 | 3.2 | 17.4 | 17.4 |
| Others | 24.4 | 25.3 | 8.7 | 10.3 | 10.1 | 10.1 | 26.8 | 27.0 |
| No. of organ dysfunction | 1(1-1) | 1(1-1) | 1(1-1) | 1(1-1) | 1(1-1) | 1(1-1) | 1(0-1) | 1(0-1) |
| Intensive care unit admission | 88.7 | 88.7 | 74.6 | 73.8 | 90.8 | 89.4 | 89.4 | 89.7 |
| Hospital level | ||||||||
| Medical center | 43.4 | 43.5 | 32.5 | 29.4 | 31.3 | 35.5 | 45.4 | 45.4 |
| Regional hospital | 41.2 | 41.1 | 42.9 | 47.6 | 47.0 | 47.0 | 40.4 | 40.9 |
| District hospital | 15.4 | 15.4 | 24.6 | 23.0 | 21.7 | 17.5 | 14.3 | 13.7 |
* Categorical variables are tested by the McNemar's test; continuous variables by the Wilcoxon Signed-rank test. All P values > 0.05.
Values are expressed as median (interquartile range) or percentages.
ARF, acute respiratory failure; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; Other ARF, diseases other than COPD or CHF.