Table 3.
The 30-day rehospitalizations stratified by selected high-risk subgroups and length of hospital stay within each subgroup
| Subgroup Characteristic | New York (n = 71,063) |
Ontario (n = 41,875) |
(New York–Ontario) |
|||
|---|---|---|---|---|---|---|
| Total(n) | One or More Rehospitalizations within 30 d n (%) | Total (n) | One or More Rehospitalizations within 30 d n (%) | Absolute Difference in Rehospitalization Proportion | P Value | |
| Mechanical ventilation ≥96 h without tracheostomy & ≥3 Charlson comorbidities | 5,926 | 1,675 (28.3) | 3,127 | 587 (18.8) | +9.5 | <0.001 |
| 1–13 d* | 1,196 | 289 (24.2) | 252 | 48 (19.0) | + 5.2 | 0.08 |
| 14–20 d | 1,630 | 468 (28.7) | 503 | 89 (17.7) | +11.0 | <0.001 |
| ≥21 d | 3,100 | 918 (29.6) | 2,372 | 450 (19.0) | +10.6 | <0.001 |
| Mechanical ventilation with tracheostomy & ≥3 Charlson comorbidities | 2,885 | 964 (33.4) | 1,501 | 259 (17.3) | +16.1 | <0.001 |
| 1–13 d* | 158 | 31 (19.6) | NA† | NA† | NA† | NA† |
| 14–20 d | 273 | 90 (33.0) | NA† | NA† | NA† | NA† |
| ≥21 d | 2,454 | 843 (34.4) | 1,414 | 246 (17.4) | +17.0 | <0.001 |
| Mechanical ventilation ≥96 h without tracheostomy and ESRD requiring dialysis | 724 | 258 (35.6) | 108 | 25 (23.1) | +12.5 | 0.01 |
| 1–13 d* | 114 | 34 (29.8) | NA† | NA† | NA† | NA† |
| 14–20 d | 157 | 54 (34.4) | NA† | NA† | NA† | NA† |
| ≥21 d | 453 | 170 (37.5) | 85 | 21 (24.7) | +12.8 | 0.02 |
Definition of abbreviations: ESRD = end-stage renal disease; NA = not available.
*
<7 days and 7–13 days combined due to small cell size in some categories.
†
Suppression due to small cell size required as per ICES and Statewide Planning and Research Cooperative System policy.