Exposure to secondhand smoke and risk of peripheral arterial disease in southern Chinese non-smokers: The Guangzhou Biobank Cohort Study-Cardiovascular Disease Sub-cohort

Research output: Contribution to journalArticle

Authors

  • Liya Lu
  • Chaoqiang Jiang
  • Danny F. Mackay
  • Jill P. Pell
  • Tai Hing Lam

Colleges, School and Institutes

External organisations

  • University of Glasgow
  • Guangzhou No. 12 Hospital
  • University of Hong Kong

Abstract

Objectives: We studied the association between secondhand smoke (SHS) exposure and peripheral arterial disease (PAD) in Chinese non-smokers. Methods: We conducted a cross-sectional study using baseline data from the Guangzhou Biobank Cohort Study: Cardiovascular Disease Sub-cohort Study (GBCS-CVD). Guangzhou residents aged ≥ 50 years were recruited between 2003 and 2008. Baseline data included measurement of ankle brachial pressure index (ABPI) and self-reported smoking status and SHS exposure. Univariate and multivariate logistic regression analyses were used to analyze the association between SHS and PAD (defined as ABPI < 0.9). Results: Of the 1507 non-smokers, 24 (1.6%) had PAD. Of these, 12 were men and 12 were women. Exposure to SHS at home of ≥25 h per week was reported by 16.7% of PAD cases compared with 3.8% of those without PAD (χ2 test, p = 0.003). After adjustment for potential confounders, exposure to ≥25 h per week at home was still associated with PAD (adjusted OR 7.86, 95% CI 2.00–30.95, p = 0.003), with suggestion of a dose-response relationship. Conclusions: Our results extend the US Surgeon General’s 2006 report that SHS exposure is an independent risk factor for PAD. National smoke-free legislation is needed to protect all people from exposure.

Details

Original languageEnglish
Pages (from-to)283-289
Number of pages7
JournalVascular
Volume25
Issue number3
Early online date20 Oct 2016
Publication statusPublished - 1 Jun 2017

Keywords

  • China, Peripheral arterial disease, secondhand smoke, tobacco smoke pollution