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Body mass decrease after initial gain following smoking cessation.

T Mizoue1, R Ueda, N Tokui

  • 1Department of Clinical Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan.

International Journal of Epidemiology
|February 19, 1999
PubMed
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Former smokers may gain weight initially, but heavy smokers tend to lose it over time. Light to moderate smokers reach a stable weight similar to never smokers after quitting.

Area of Science:

  • Public Health
  • Epidemiology
  • Weight Management

Background:

  • Smoking cessation is linked to weight gain.
  • Long-term weight changes after quitting smoking require further investigation.

Purpose of the Study:

  • To analyze the long-term weight changes in former smokers.
  • To investigate the relationship between body mass index (BMI) and smoking cessation duration.
  • To examine the modifying effects of alcohol intake and physical activity on weight changes post-cessation.

Main Methods:

  • Cross-sectional analysis of health examination data from workers.
  • Assessed body mass index (BMI) in relation to smoking cessation length.
  • Used linear regression to estimate BMI changes and identify modifying factors.

Related Experiment Videos

Main Results:

  • Heavy smokers (>25 cigarettes/day) showed increased BMI in the initial years post-cessation, but this trend reversed over time.
  • Light/moderate smokers (<25 cigarettes/day) experienced weight gain, stabilizing at levels comparable to never smokers.
  • Alcohol intake and sport activity were analyzed for their modifying effects on weight changes.

Conclusions:

  • Initial weight gain after smoking cessation may not be permanent, especially for heavy smokers.
  • Long-term weight management strategies may differ based on smoking intensity.
  • Former smokers' weight can normalize over time, influenced by cessation duration and lifestyle factors.