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The association between systemic inflammatory markers and sarcopenia: Results from the West China Health and Aging
Wan-Yu Zhao1, Yan Zhang1, Li-Sha Hou1
1National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.
Background:
Increased evidence suggests chronic inflammation is significant in the progression of sarcopenia in older adults. In this study, we aimed to compare the level of systemic inflammation markers (White blood cells, neutrophils, lymphocytes, platelets and their derived ratios) between sarcopenic and non-sarcopenic individuals and investigate the association of these inflammatory markers with sarcopenia.
Methods:
This cross-sectional study included 4224 adults (1514 men and 2710 women) from the West China Health and Aging Trend (WCHAT) study. Sarcopenia was defined according to the recommended diagnostic algorithm of the Asia Working Group for Sarcopenia (AWGS). The value of systemic inflammatory markers was based on laboratory data. Multiple logistic regression analysis was used to explore the association between inflammatory markers and sarcopenia after adjusting for covariates.
Results:
Among 4224 participants (mean age 62.3 ± 8.2 years, 64.2 % women), 814 (19.3 %) were diagnosed as sarcopenia. After adjusting for potential confounders, logistic regression analysis indicated that neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and systemic immune-inflammation index (SII) were significantly associated with sarcopenia. Participants in the highest NLR, PLR and SII value group had higher odds for sarcopenia than those in the lowest value group (OR [95 %CI]: 1.233 [1.002,1.517], 1.455 [1.177,1.799] and 1.268 [1.029,1.561], respectively).
Conclusions:
Higher NLR, PLR, and SII level are associated with an increased prevalence of sarcopenia in middle-aged and older adults. Since these systemic inflammatory markers are inexpensive and can be obtained easily from routine blood tests, regular follow-up of NLR, PLR and SII may be an effective strategy in sarcopenia screening and management.
