3.2.2. Regarding the Effect That the Fracture and Admission Exert

We obtained the bivariate analysis (Table 3), and the following risk factors were found: the use of synthesis as a surgical technique, hospital stay ≥ 11 days, BI at discharge < 90, deterioration of at least one category in the BI between hospital admission and discharge, impairment of at least one category in the ability to walk, better cognitive status at discharge (PE ≤ 4), cognitive impairment in at least one category in the PS, "de novo" institutionalization at hospital discharge it associates greater risk than staying at home, and the following events: hemoglobinemia ≤ 8.5 mg/dL, being transfused with ≥3 packed red blood cells, delirium, and constipation. The variable's type of treatment and surgical delay were not significant in this bivariate analysis.


**Table 3.** Bivariate analysis recovery of the BI (yes/no); significant variables—effect of the fracture and outcome.

BI: Barthel Index; FAC: functional ambulation classification; PS: Pfeiffer Scale.

The multivariate analysis (Table 4) has estimated significant variables with adjustment for not regaining independence: older age, higher BI (0–100) at hospital discharge, but above all, deterioration of BI during admission, in addition to hemoglobinemia ≤ 8.5 mg/dL, and constipation.


**Table 4.** Binary logistic regression of recovery of the BI (yes/no); situation during admission.

BI: Barthel Index; PS: Pfeiffer Scale.
