Table 2.
Difference of the utilization of healthcare resources between pulmonary and non-pulmonary disorder groups
| Variable | Non-pulmonary disorder (n = 9,063) | Pulmonary disorder (n = 3,875) | Difference (95% CI) |
|---|---|---|---|
| Course of admission to hospital | |||
| Through outpatient clinic | 3,067 (33.8) | 1,283 (33.1) | –0.7 (–2.5 to 1.0) |
| Through emergency room | 5,864 (64.7) | 2,570 (66.3) | 1.6 (–0.2 to 3.4) |
| All others | 132 (1.5) | 22 (0.6) | –0.9 (–1.2 to –0.5) |
| ICU volume per healthcare unit | |||
| High | 8,810 (97.2) | 3,760 (97.0) | –0.2 (–0.8 to 0.5) |
| Middle | 219 (2.4) | 105 (2.7) | 0.3 (–0.3 to 0.9) |
| Low | 34 (0.4) | 10 (0.3) | –0.1 (–0.3 to 0.1) |
| No. of days spent in the hospital | 21.2 ± 23.4 | 27.4 ± 28.6 | 6.2 (5.2 to 7.3) |
| No. of days spent in the ICU | 8.6 ± 15.7 | 13.2 ± 19.4 | 4.5 (3.8 to 5.2) |
| Use of endotracheal tube and mechanical ventilator | 1,856 (20.5) | 2,124 (54.8) | 34.3 (32.5 to 36.1) |
| No. of days using mechanical ventilator | 7.3 ± 18.3 | 9.9 ± 16.5 | 2.6 (1.5 to 3.7) |
| Total cost during ICU stay, 1,000 KRW | 6,167 ± 9,391 | 9,905 ± 12,165 | 3,738 (3,309 to 4,168) |
| ICU cost, tertile | |||
| 1st | 4,201 (46.4) | 909 (23.5) | –22.9 (–24.6 to –21.2) |
| 2nd | 3,027 (33.4) | 1,328 (34.3) | 0.9 (–0.9 to 2.7) |
| 3rd | 1,835 (20.2) | 1,638 (42.3) | 22.0 (20.3 to 23.8) |
Values are presented as mean ± SD or number (%).
CI, confidence interval; ICU, intensive care unit; KRW, Korean won.