Medina-Mirapeix F, Bernabeu-Mora R, Gacto-Sánchez M, Montilla-Herrador J, Escolar-Reina P, Sánchez-Martínez MP. The prognosis of pre-frail chronic obstructive pulmonary disease patients for hospitalizations and mortality depends on their level of functional physical performance.
Chron Respir Dis 2022;
19:14799731221119810. [PMID:
36071021 PMCID:
PMC9459488 DOI:
10.1177/14799731221119810]
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Abstract
Objective
To determine if pre-frail Chronic obstructive pulmonary disease (COPD)
patients with poor and non-poor performance in the five-repetition
sit-to-stand test (5-STS) had a worse prognosis for hospitalization and
mortality at 2 years and for mortality at 5 years than non-frail
patients.
Methods
We prospectively included patients with stable COPD, between 40 and 80 years,
from a hospital in Spain. Patients were classified according their
performance on the 5-STS test and level of frailty. Timing, number of
hospitalizations, length of stay, and timing and rate of mortality were
outcome measures. Patients were followed for 2 years for exacerbations and
for 5 years for mortality. Kaplan-Meier curves and univariate and
multivariate Cox proportional-hazard analyses, ANOVA tests and univariate
and multivariate linear and logistic regression models were used.
Results
Of the 125 patients included, 25.6% were pre-frail with poor performance, 57%
pre-frail with non-poor performance, and 17.4% non-frail with non-poor
performance. Pre-frail patients with poor performance had a higher number of
hospitalizations (adjusted beta: 0.49; 95% CI: 0.01–0.96), mortality rates
(odds ratio: 11.33; 95% CI: 1.15–110.81), and risk at 5 years (adjusted
hazard ratio: 8.77; 95% CI: 1.02–75.51) than non-frail patients. Pre-frail
patients with poor performance also had worse prognoses than non-frail
patients with respect to length of hospital stays (increased by 4.16 days)
and timing to first hospitalization (HR: 6.01) in unadjusted models, but not
when adjusted.
Conclusion
The COPD prognosis of pre-frail patients with respect to the number of
exacerbations with hospitalization and the timing and rate of mortality is
dependent of functional performance.
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