Table 2.
Factors Associated in Multivariate Analysis With Recovery of Prehospital Function Among Participants Admitted to a Nursing Home With Disability After an Acute Hospitalization*
| Model Without Prehospital Functional Status |
Model 1 With Prehospital Functional Status† |
Model 2 With Prehospital Functional Status‡ |
|||||||
| Factor‡ | Hazard Ratio | 95% CI | p Value | Hazard Ratio | 95% CI | p Value | Hazard Ratio | 95% CI | p Value |
| Gross motor coordination, s | |||||||||
| <8.8 | 13.5 | 4.02–45.0 | <.001 | 14.4 | 3.95–52.2 | <.001 | 14.5 | 3.93–53.7 | <.001 |
| 8.8–10.3 | 2.23 | 1.06–4.71 | .04 | 2.65 | 1.27–5.52 | .01 | 2.83 | 1.34–5.96 | .01 |
| 10.4–12.4 | 1.82 | 0.92–3.60 | .08 | 1.89 | 0.94–3.80 | .07 | 2.09 | 1.03–4.26 | .04 |
| ≥12.5 | Reference | Reference | Reference | ||||||
| Manual dexterity, s | |||||||||
| <21.8 | 10.0 | 2.94–34.3 | <.001 | 14.0 | 3.81–51.3 | <.001 | 13.0 | 3.53–47.8 | <.001 |
| 21.8–24.3 | 1.95 | 0.73–5.23 | .19 | 2.20 | 0.79–6.11 | .13 | 2.20 | 0.78–6.21 | .14 |
| 24.4–27.5 | 1.58 | 0.75–3.33 | .23 | 1.62 | 0.78–3.38 | .20 | 1.69 | 0.81–3.52 | .16 |
| ≥27.6 | Reference | Reference | Reference | ||||||
| Not cognitively impaired | 3.00 | 1.46–6.14 | .003 | 3.43 | 1.62–7.29 | .001 | 4.10 | 1.82–9.27 | .001 |
| No significant weight loss | 1.96 | 1.06–3.63 | .03 | 1.86 | 1.00–3.46 | .05 | 1.93 | 1.03–3.62 | .04 |
Notes: CI = confidence interval.
Hazard ratios were estimated using recurrent event Cox regression counting process models, adjusted for the number of months from the preceding comprehensive assessment to the index nursing home admission. Prehospital functional status was defined as the number of disabled activities of daily living during the monthly interview immediately prior to the hospitalization. Among the 292 participants, there were 364 index nursing home admissions.
Model 1 includes all 364 index nursing home admissions, whereas model 2 omits the 13 admissions in which disability was present in all four activities of daily living (i.e., complete disability) immediately prior to the hospitalization.
Factors are listed in the order they entered the multivariate models following a forward selection procedure based on the likelihood ratio test between two successively fitted models, as described in the Methods section. Age, sex, education, physical activity, body mass index, and timed chair stands were evaluated in the multivariate analysis but did not meet the criterion for inclusion in the final model.