Table 2.
Mean Resource Use per Year for Intensive Care Unit Cohort and Hospital Control Cohort
| No. Alive at Start of Interval | Mean Hospital Resource Use during Interval |
Mean Hospital Cost Accrued during Interval ($) |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Emergency | Elective | Day Case | Total (95% CI) | Emergency | Elective | Day Case | Total (95% CI) | ||
| ICU cohort | |||||||||
| 0–1 yr | 5,215 | 6,317 | 1,880 | 666 | 8,863 (8,332–9,393) | ||||
| No. of admissions | 0.83 | 0.31 | 0.52 | 1.66 (1.57–1.75) | |||||
| Length of stay, d | 8.3 | 2.5 | 0.5 | 11.2 (10.6–11.9) | |||||
| 1–2 yr | 4,651 | 4,116 | 1,175 | 412 | 5,704 (5,269–6,138) | ||||
| No. of admissions | 0.60 | 0.20 | 0.32 | 1.11 (1.04–1.18) | |||||
| Length of stay, d | 5.4 | 1.5 | 0.3 | 7.2 (6.7–7.8) | |||||
| 2–3 yr | 4,286 | 4,104 | 973 | 342 | 5,421 (4,949–5,892) | ||||
| No. of admissions | 0.57 | 0.16 | 0.27 | 1.00 (0.93–1.07) | |||||
| Length of stay, d | 5.4 | 1.3 | 0.3 | 6.9 (6.3–7.5) | |||||
| 3–4 yr | 3,999 | 4,078 | 726 | 340 | 5,146 (4,639–5,652) | ||||
| No. of admissions | 0.53 | 0.14 | 0.26 | 0.93 (0.86–1.00) | |||||
| Length of stay, d | 5.3 | 1.0 | 0.3 | 6.6 (5.9–7.2) | |||||
| 4–5 yr | 3,757 | 3,593 | 628 | 300 | 4,521 (4,061–4,982) | ||||
| No. of admissions | 0.48 | 0.12 | 0.23 | 0.84 (0.78–0.90) | |||||
| Length of stay, d | 4.7 | 0.8 | 0.2 | 5.8 (5.2–6.4) | |||||
| 0–5 yr | 5,215 | 19,077 | 4,738 | 1,793 | 25,608 (24,360–26,856) | ||||
| No. of admissions | 2.58 | 0.82 | 1.39 | 4.79 (4.57–5.02) | |||||
| Length of stay, d | 25.0 | 6.2 | 1.4 | 32.6 (30.9–34.2) | |||||
| Hospital control cohort | |||||||||
| 0–1 yr | 5,215 | 3,662 | 1,351 | 381 | 5,392 (4,969–5,815) | ||||
| No. of admissions | 0.50 | 0.26 | 0.30 | 1.05 (0.99–1.11) | |||||
| Length of stay, d | 4.8 | 1.8 | 0.3 | 6.9 (6.3–7.4) | |||||
| 1–2 yr | 4,824 | 2,936 | 698 | 272 | 3,906 (3,534–4,279) | ||||
| No. of admissions | 0.37 | 0.15 | 0.21 | 0.73 (0.68–0.78) | |||||
| Length of stay, d | 3.8 | 0.9 | 0.2 | 5.0 (4.5–5.5) | |||||
| 2–3 yr | 4,558 | 2,608 | 629 | 235 | 3,473 (3,098–3,848) | ||||
| No. of admissions | 0.33 | 0.13 | 0.18 | 0.65 (0.60–0.69) | |||||
| Length of stay, d | 3.4 | 0.8 | 0.2 | 4.4 (3.9–4.9) | |||||
| 3–4 yr | 4,345 | 2,268 | 583 | 255 | 3,105 (2,759–3,450) | ||||
| No. of admissions | 0.31 | 0.11 | 0.20 | 0.62 (0.57–0.67) | |||||
| Length of stay, d | 3.0 | 0.8 | 0.2 | 3.9 (3.5–4.4) | |||||
| 4–5 yr | 4,179 | 2,111 | 516 | 221 | 2,850 (2,517–3,183) | ||||
| No. of admissions | 0.30 | 0.10 | 0.17 | 0.57 (0.53–0.61) | |||||
| Length of stay, d | 2.8 | 0.7 | 0.2 | 3.6 (3.2–4.0) | |||||
| 0–5 yr | 5,215 | 12,240 | 3,445 | 1,227 | 16,912 (15,955–17,869) | ||||
| No. of admissions | 1.63 | 0.68 | 0.95 | 3.26 (3.12–3.41) | |||||
| Length of stay, d | 16.0 | 4.5 | 1.0 | 21.5 (20.2–22.7) | |||||
Definition of abbreviations: CI = confidence interval; ICU = intensive care unit.
Mean number of admissions, mean hospital length of stay, and mean cost are calculated per patient alive and under follow-up at the start of each interval. The 95% CIs are shown only for total columns for clarity of presentation. Resource use is presented for matched cohorts (n = 5,215 per cohort); for resource use quantities for full ICU cohort (n = 5,259) see Table E2 in the online supplement.