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Journal Article
Research Support, Non-U.S. Gov't
Review
The association between telomere length and frailty: A systematic review and meta-analysis.
Experimental Gerontology 2018 June
BACKGROUND: Several studies have examined the association between telomere length and frailty, but results from these studies are contradictory. Therefore, we conducted a systematic review and meta-analysis to examine the association between telomere length and frailty.
METHODS: We searched the literature in Ovid (MEDLINE), Embase, PubMed, Web of Knowledge and Cochrane databases in July 2017 for studies evaluating the association of telomere length and the risk of frailty.
RESULTS: A total of 5 studies (3268 participants) were eligible in our study. The prevalence of frailty ranged from 5.4% to 51.1%. The pooled mean difference of telomere length for the non-frail versus frail was 0.06 (95% CI: -0.01, 0.13), suggesting that no significant association was found between telomere length and frailty. In addition, the subgroup analysis indicated that telomere length was not significantly associated with the risk of frailty in all gender groups. Similar results were also found when frailty was defined by the Fried criteria (mean difference = 0.07, 95% CI: -0.03, 0.16) and frailty index (mean difference = -0.02, 95% CI: -0.05, 0.01), but not by the frailty scale (mean difference = 0.18, 95% CI: 0.04, 0.32).
CONCLUSION: Telomere length is not associated with the risk of frailty. Well-designed prospective studies are needed to evaluate further whether telomere length is a meaningful biological marker for frailty.
METHODS: We searched the literature in Ovid (MEDLINE), Embase, PubMed, Web of Knowledge and Cochrane databases in July 2017 for studies evaluating the association of telomere length and the risk of frailty.
RESULTS: A total of 5 studies (3268 participants) were eligible in our study. The prevalence of frailty ranged from 5.4% to 51.1%. The pooled mean difference of telomere length for the non-frail versus frail was 0.06 (95% CI: -0.01, 0.13), suggesting that no significant association was found between telomere length and frailty. In addition, the subgroup analysis indicated that telomere length was not significantly associated with the risk of frailty in all gender groups. Similar results were also found when frailty was defined by the Fried criteria (mean difference = 0.07, 95% CI: -0.03, 0.16) and frailty index (mean difference = -0.02, 95% CI: -0.05, 0.01), but not by the frailty scale (mean difference = 0.18, 95% CI: 0.04, 0.32).
CONCLUSION: Telomere length is not associated with the risk of frailty. Well-designed prospective studies are needed to evaluate further whether telomere length is a meaningful biological marker for frailty.
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