Background
The 30-day mortality rate after hip fracture surgery has been considered as an indirect indicator of the quality of care. This work aims to validate the Barthel Index, Katz Index, Lawton-Brody Index, and Physical Red Cross Scale analyzed in the Comprehensive Geriatric Assessment at admission as predictors of 30-day mortality after hip fracture surgery.
Methods
Prospective study including 899 hip fracture patients over 65. Bed-ridden, non- surgically treated patients, and high energy trauma or tumoral etiology fractures were excluded. Variables distribution were assessed by χ2, and we performed binary logistic regression for risk assessment. P < 0.05 was considered statistically significant.
Results
We noted a 30-day mortality rate of 5.9%. We related Barthel Index (OR = 0.986 [0.975–0.996], p = 0.010), Katz Index (OR per point = 1.254 [1.089–1.444], p = 0.002), Lawton-Brody Index (OR = 0.885 [0.788–0.992], p = 0.037), and Physical Red Cross Scale (OR = 1.483 [1.094–2.011], p = 0.011) with the 30-day mortality of patients after hip fracture surgery. We also validate the Barthel Index inflection point (0–55) (ORBI(0−55) = 2.428 [1.379–4.275], p = 0.002) and Katz Index inflection point (A-B) (ORKI(A−B) = 0.493 [0.273–0.891], p = 0.019) for the assessment of the highest risked patients.
Conclusions
The geriatric scores would be useful multifunctional tools in the assessment of hip fracture patients as singly predictors of 30-day mortality.