Table 1.
Participant Characteristics by Randomised Intervention Groups
| CAPICHe intervention (n = 35,535) | Usual care control (n = 8883) | p value | |
|---|---|---|---|
| Age (years, SD) | 72.7 (12.0) | 72.7 (11.7) | 0.897a |
| Age group in years (n, %) | 0.821b | ||
| ≤ 60 | 4930 (13.9%) | 1226 (13.8%) | |
| 61–70 | 8509 (24.0%) | 2146 (24.2%) | |
| 71–80 | 12,014 (33.8%) | 3032 (34.1%) | |
| > 80 | 10,081 (28.4%) | 2479 (27.9%) | |
| Missing | 1 | 0 | |
| Sex (n, %) | 0.772b | ||
| Male | 19,174 (54.0%) | 4778 (53.8%) | |
| Female | 16,360 (46.0%) | 4105 (46.2%) | |
| Missing | 1 | 0 | |
| Historical total costc (n, %) | 0.317b | ||
| ≤ $5000 | 20,909 (58.8%) | 5163 (58.1%) | |
| $5001–$25,000 | 11,402 (32.1%) | 2875 (32.4%) | |
| > $25,000 | 3224 (9.1%) | 845 (9.5%) | |
| Historical number of admissionsd (n, %) | 0.029b | ||
| 0–1 | 21,507 (60.5%) | 5315 (59.8%) | |
| 2–3 | 10,586 (29.8%) | 2624 (29.5%) | |
| 4+ | 3442 (9.7%) | 944 (10.6%) | |
| Mortality | 0.941b | ||
| No | 32,147 (90.5%) | 8034 (90.4%) | |
| Yes | 3387 (9.5%) | 849 (9.6%) | |
| Missing | 1 | 0 | |
| Overnight admissionse (n, %) | |||
| Nil | 24,601 (69.2%) | 6176 (69.5%) | 0.589b |
| At least one admission (n, %) | 10,934 (30.8%) | 2707 (30.5%) | |
| Mean (SD) admission ratef | 1.810 (1.329) | 1.825 (1.362) | 0.591a |
| Number of overnight admissionsf | 0.549b | ||
| Due to medical treatment | 10,157 (58.5%) | 2567 (58.9%) | |
| Due to surgical treatment | 6443 (37.1%) | 1617 (37.1%) | |
| Due to other treatment | 753 (4.3%) | 173 (4.0%) | |
| Missing | 2436 | 584 | |
| Total | 19,789 | 4941 | |
| Same-day admissionse (n, %) | |||
| Nil | 29,195 (82.2%) | 7233 (81.4%) | 0.108b |
| At least one admission (n, %) | 6340 (17.8%) | 1650 (18.6%) | |
| Mean (SD) admission ratef | 2.893 (6.324) | 3.467 (9.853) | 0.025a |
| Number of same-day admissionsf | < 0.001 b | ||
| Due to medical treatment | 4854 (50.3%) | 1599 (55.7%) | |
| Due to surgical treatment | 4224 (43.8%) | 1141 (39.7%) | |
| Due to other treatment | 575 (5.9%) | 131 (4.6%) | |
| Missingg | 8687 | 2850 | |
| Total | 18,340 | 5721 | |
Data are mean (SD), n (%), unless otherwise indicated. aTest difference in means between groups using t tests. bTest difference in proportions between groups using chi-square tests. cTotal non-maternity cost for the prior 12 months to randomisation. dTotal number of admissions (any type) for the prior 12 months to randomisation. eAdmission data for 12 months from randomisation. fData are for participants who have at least one admission. gOutpatient admissions do not involve a formal admission process to define the type of treatment (medical/surgical/other)