Hemoglobin Concentration; a Pathway to Frailty

Overview

Journal BMC Geriatr

Publisher Biomed Central

Specialty Geriatrics

Date 2020 Jun 13

PMID 32527230

Citations 22

Authors

Zara Steinmeyer

Cyrille Delpierre

Gaelle Soriano

Armand Steinmeyer

Loic Ysebaert

Laurent Balardy

Sandrine Sourdet

Affiliations

Soon will be listed here.

Abstract

Background: Frailty and hemoglobin concentration, above what would be considered clinical anemia, are two common findings in older patients that lead to an increased risk of negative health outcomes. The objective of this study is to evaluate whether hemoglobin concentration is an independent predictor of frailty and investigate possible causal pathways with a focus on the relationship between inflammation or nutrition and hemoglobin concentration.

Methods: 1829 community-dwelling participants aged 65 years or older who visited the Toulouse frailty day hospital during 2011 and 2016 were included in this analysis. Patients underwent a comprehensive geriatric assessment and had a blood sample taken. A series of multivariate logistic regression models were performed after minimizing potential influence from age, gender, kidney function, inflammation, cognition, nutritional status and certain socio-economic factors.

Results: Hemoglobin concentration and frailty are significantly associated after minimizing potential influence from other covariates (p < 0.005). An increase in one point of hemoglobin concentration is associated with a 14% risk reduction of being frail (OR = 0.86, 95%IC = 0.79-0.94). There was no evidence of a significant causal relationship between inflammation and nutritional status in the relationship between hemoglobin concentration and frailty status (p > 0.005).

Conclusions: Hemoglobin concentration is strongly associated with frailty in older adults. These results can have potentially important implications for prevention policies targeting frailty by identifying potential patients with high risk of adverse outcomes and functional outcomes.

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