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Relation between cigarette smoking and sarcopenia: meta-analysis.

M Steffl1, R W Bohannon, M Petr

  • 1Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic. kohlikova@ftvs.cuni.cz.

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Cigarette smoking may be an independent risk factor for sarcopenia, a condition characterized by muscle loss. This meta-analysis of 12 studies suggests a link, though study variations impacted consistency.

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Area of Science:

  • Gerontology
  • Public Health
  • Epidemiology

Background:

  • Cigarette smoking is a known risk factor for numerous diseases.
  • Sarcopenia, characterized by age-related loss of skeletal muscle mass and strength, is a growing public health concern.
  • The potential association between smoking and sarcopenia requires further investigation.

Purpose of the Study:

  • To conduct a meta-analysis to determine if cigarette smoking is an independent risk factor for sarcopenia.
  • To synthesize evidence from existing studies on the relationship between smoking and sarcopenia.

Main Methods:

  • A systematic literature search was performed across PubMed, Web of Science, EBSCO, and Science Direct.
  • Data from 12 studies, encompassing 22,515 participants, were included in the meta-analysis.
  • Odds ratios (OR) were calculated using fixed-effect and random-effect models, stratified by sex.

Main Results:

  • The overall meta-analysis indicated a statistically significant association between cigarette smoking and sarcopenia (OR = 1.12, 95% CI 1.03-1.21).
  • In males, smoking was associated with an increased risk of sarcopenia (OR = 1.20, 95% CI 1.06-1.35).
  • In females, the association was not statistically significant (OR = 1.21, 95% CI 0.92-1.59), with moderate heterogeneity observed.

Conclusions:

  • Cigarette smoking may be an independent contributing factor to the development of sarcopenia.
  • Inconsistencies in study methodologies, particularly in variable measurement, likely contributed to heterogeneity in the results.
  • Further research with standardized methodologies is warranted to confirm these findings.