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Meta-Analysis
. 2023 Jan-Dec:20:14799731231196582.
doi: 10.1177/14799731231196582.

Prevalence and assessment of frailty in interstitial lung disease - a systematic review and meta-analysis

Angela Weber  1 , Ilena Müller  1 , Annina E Büchi  1 , Sabina A Guler  1   2
Affiliations
Meta-Analysis

Prevalence and assessment of frailty in interstitial lung disease - a systematic review and meta-analysis

Angela Weber et al. Chron Respir Dis. 2023 Jan-Dec.

Abstract

Background: Frailty is a multisystem dysregulation that challenges homeostasis and increases vulnerability towards stressors. In patients with interstitial lung diseases (ILD) frailty is associated with poorer lung function, greater physical impairment, and higher symptom burden. Our understanding of the prevalence of frailty in ILD and consequently its impact on the ILD population is limited.

Objective and methods: We aimed to systematically review frailty assessment tools and to determine frailty prevalence across different ILD cohorts. Meta-analyses were used to calculate the pooled prevalence of frailty in the ILD population.

Results: We identified 26 studies (15 full-texts, 11 conference abstracts) including a total of 4614 patients with ILD. The most commonly used frailty assessment tools were the Fried Frailty Phenotype (FFP), the Short Physical Performance Battery (SPPB), and the cumulative Frailty Index (FI). Data allowed for meta-analyses of FFP and SPPB prevalence. The pooled prevalence of frailty was 35% (95% CI 25%-45%) by FFP, and 19% (95% CI 12%-28%) by SPPB.

Conclusions: Frailty is common in ILD, with considerable variability of frailty prevalence depending on the frailty assessment tool used. These findings highlight the importance of frailty in ILD and the need for a standardized approach to frailty assessment in this population.

Keywords: Interstitial lung disease; ageing; frailty; multimorbidity; systematic review.

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Conflict of interest statement

The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Figures

Figure 1.
Figure 1.
PRISMA flow diagram with search results.
Figure 2.
Figure 2.
Prevalence of frailty in interstitial lung disease assessed by the Fried Frailty Phenotype in all studies (a) and in full-text studies only (b).
Figure 3.
Figure 3.
Prevalence of frailty in interstitial lung disease assessed by the Short Physical Performance Battery in all studies (a) and in full-text studies only (b).
Figure 4.
Figure 4.
Risk of bias assessment.
See this image and copyright information in PMC

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