Table 3.
Summed hospitalization days and number of ED visits for the intervention and control groups in the 365 days following the index hospitalization date (percentages in parentheses)
| Intervention group (%) | Control group (%) | |
|---|---|---|
| Summed hospitalization days | ||
| 0 | 524 (75) | 625 (90) |
| 1 | 24 (3) | 17 (2) |
| 2 | 39 (6) | 28 (4) |
| 3 | 26 (4) | 15 (2) |
| 4 | 24 (3) | 6 (1) |
| 5 | 17 (2) | 2 (0) |
| 6 | 8 (1) | 1 (0) |
| 7–9 | 18 (3) | 0 (0) |
| 10+ | 18 (3) | 4 (1) |
| Mantel–Haenszel chi-squarea test | QS 17.96 | p < 0.0001 |
| No. of ED visits | ||
| 0 | 376 (54) | 481(69) |
| 1 | 146 (21) | 118 (17) |
| 2 | 69 (10) | 52 (7) |
| 3+ | 107 (15) | 47 (7) |
| Mantel–Haenszel chi-square test | QS 7.49 | p = 0.0062 |
aMantel–Haenszel chi-square test ignoring matched pairs of similarities (without zeros)