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Biochemically-verified Smoking Rate Trends and Factors Associated with Inaccurate Self-reporting of Smoking Habits in Korean Women

Authors
 Hyun Goo Kang  ;  Kyoung Hyun Kwon  ;  In Wook Lee  ;  Boyoung Jung  ;  Eun-Cheol Park  ;  Sung-In Jang 
Citation
 ASIAN PACIFIC JOURNAL OF CANCER PREVENTION, Vol.14(11) : 6807-6812, 2013 
Journal Title
 ASIAN PACIFIC JOURNAL OF CANCER PREVENTION 
ISSN
 1513-7368 
Issue Date
2013
MeSH
Adult ; Cotinine/urine* ; Cross-Sectional Studies ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Nutrition Surveys ; Prevalence ; Prognosis ; Republic of Korea/epidemiology ; Self Report* ; Smoking/epidemiology* ; Smoking/urine ; Truth Disclosure* ; Young Adult
Keywords
Smoking rates ; cotinine ; surveillance and monitoring ; self-reporting ; Korean females
Abstract
BACKGROUND: Lung cancer is a major cause of Korean female mortality and is clearly associated with smoking. The Korean National Health and Nutrition Examination Survey (KNHANES IV-2,3), which included both self-reports of smoking and urinary cotinine data, revealed a significant discrepancy between the prevalence of self-reported and biochemically-verified female smokers. The factors associated with accurate self-reporting of current smoking status remain poorly understood, however. MATERIALS AND METHODS: We assessed the prevalence of smoking in KNHANES using both self-report and urinary cotinine data. Subsequently, using univariate and multivariate tests, we assessed whether age, intensity of smoking, marital status, relationship with cohabitants, education, occupation, residential area, or annual household income were associated with inaccurate self- reporting in Korean females. We also investigated whether the prevalence of inaccurate self-reports changed over the survey period, 2008-2009. RESULTS: The prevalence of self-reported smoking was 47.8% in males and 6.6% in females. By contrast, the prevalence of smoking as assessed by urinary cotinine levels was 52.2% in males and 14.5% in females. Of the 746 females with urinary cotinine levels >50 ng/ml, 407 (56.0%) provided inaccurate self-reports. In a multivariate model, age group(40-49: OR 3.54, 95%CI 1.42-8.86, p=0.007; ref :20- 29), cotinine intensity(OR 0.999, 95%CI 0.998-0.999, p<0.001), marital status (married but without spouse: OR 0.37, 95%CI 0.15-0.94, p=0.037; ref :never married), relationship with cohabitants (living with a spouse and unmarried child: OR 2.63, 95%CI 1.44-4.80, p=0.002; living with 2 generations except unmarried child: OR 2.53, 95%CI 1.09-5.87, p=0.030; living with ≥ 3 generations: OR 3.25, 95%CI 1.48-7.10, p=0.003; ref :spouse only) and education(college or higher: OR 2.73, 95%CI 1.04-7.18, p=0.042; ref :elementary or less) were independently associated with inaccurate self-reports. CONCLUSIONS: The trend of smoking prevalence of Korean females is likely to decrease. However, an elevated prevalence of inaccurate self-reports by females remains. Factors related to the intensity of smoking and family status appear to influence whether a Korean female provides an accurate self-report when asked about smoking behavior.
Files in This Item:
T201304542.pdf Download
DOI
10.7314/APJCP.2013.14.11.6807
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kang, Hyun Goo(강현구) ORCID logo https://orcid.org/0000-0001-8359-9618
Park, Eun-Cheol(박은철) ORCID logo https://orcid.org/0000-0002-2306-5398
Jang, Sung In(장성인) ORCID logo https://orcid.org/0000-0002-0760-2878
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/88728
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