Utilizing exhaled carbon monoxide measurement with self-declared smoking cessation: Enhancing abstinence effectiveness in Taiwanese outpatients

Chiung Chu Chen, Chiu Hsia Chang, Yuh Chyn Tsai, Ching Wan Tseng, Mei Lien Tu, Chin Chou Wang, Meng Chih Lin, Shih Feng Liu*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

6 Scopus citations

Abstract

Presently, the Department of Health Taiwan has begun to fund a smoking cessation program, and the annual cessation rate was 8.9% in 2010. This study aims to see whether to enhance abstinence effectiveness by utilizing exhaled carbon monoxide (COExh) measurement with self-declared smoking cessation. Methods: The longitudinal prospective study gathered 33 subjects on quitting smoking with the motivation to join the grant program in chest outpatient from August 2009 to July 2010. Overall, subjects were given nicotine replacement therapy (NRT) in the first stage, and explored abstinence rate results in evaluation stage. The cutoff point of COExh 6ppm or less than (≤) and patients' self-declared abstinence reports confirmed a smoking cessation success status. Point abstinences were defined as the smokers refrained from smoking at least 7 days, while continuous abstinences were defined as nonsmoking at least 3, 6 and 12 months. Results: The validities were 198 tracking results for two stages (P<0.001 vs P<0.001), and sensitivity (56.5% vs 60.0%), specificity (90.1% vs 82.6%), positive predictive value (63.4% vs 60.0%) and negative predictive value (87.2% vs 82.6%) were detected. Moreover, the validities were 33 results for point and continuous abstinences at 3 month (P<0.001 vs P<0.001), and higher successful rates. Point abstinence rates at 3, 6 and 12 months follow-up for overall subjects were 27.2%, 15.2% and 18.1%, respectively. Continuous abstinence rates at 3, 6 and 12 months were 24.2%, 12.1% and 12.1%, respectively. Conclusions: Utilizing COExh measurement with self-declared smoking cessation enhanced abstinence effectiveness in Taiwanese outpatients.

Original languageEnglish
Pages (from-to)7-13
Number of pages7
JournalClinical Respiratory Journal
Volume9
Issue number1
DOIs
StatePublished - 01 01 2015

Bibliographical note

Publisher Copyright:
© 2013 John Wiley & Sons Ltd.

Keywords

  • Continuous abstinence
  • Exhaled carbon monoxide
  • Nicotine replacement therapy
  • Point abstinence
  • Smoking cessation

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