Lee Woo-Taek, Kim Hye In, Kim Jee Hoon, Lee Seok-Jin R, Hong Seri, Park Eun-Cheol
Department of Medicine, Graduate School of Medicine, Yonsei University, Seoul, Korea E-mail :
Asian Pac J Cancer Prev. 2015;16(15):6273-8. doi: 10.7314/apjcp.2015.16.15.6273.
This study assessed the association between subjective body image or objective body mass index (BMI) and the risk of daily smoking in Korean adolescents, with a purpose of identifying the most suitable models.
Using the 2013 9th Korea Youth Risk Behavior Web-based Survey data for 72,435 students, odds ratios were calculated for daily smoking in the past month, according to the subjective body image and calculated BMI using a respective multiple logistic regression model. The combined effect of these two factors was also analyzed by pairing a BMI category with a subjective body image category, using odds ratios for the same event within each sex group.
Among the surveyed students, 7.2% of boys and 1.8% of girls were classified as daily smokers. Students who perceived themselves as being very obese tended to be at lower risk of daily smoking (OR=0.61 in boys with 95% CI=0.47 to 0.79; OR=0.66 in women with 95% CI=0.47 to 0.93). In addition, boys within the obese or overweight BMI category showed a lower risk of daily smoking (OR=0.86, 95% CI: 0.77-0.96). Lean BMI was significantly associated with higher odds ratios for daily smoking only in female students (OR=1.24, 95% CI: 1.02-1.52). When pairing these two objective and subjective factors, results suggested that subjective body image has a greater effect on daily smoking than BMI in both boys and girls.
In both male and female students, subjective body image had a greater effect on daily smoking than body mass index. A model using the combination of BMI and subjective body image was the best fit in girls, in contrast to the model using subjective body image only best suitable in boys, for the prediction of daily smoking. These results including several factors associated with daily smoking in Korean students, provide useful data for the development and implementation of smoking intervention and cessation programs for adolescents.
本研究评估了韩国青少年主观身体形象或客观体重指数（BMI）与每日吸烟风险之间的关联，旨在确定最合适的模型。
使用2013年第9次韩国青少年风险行为网络调查中72435名学生的数据，根据主观身体形象和计算得出的BMI，利用各自的多元逻辑回归模型计算过去一个月每日吸烟的比值比。通过将BMI类别与主观身体形象类别配对，使用各性别组内同一事件的比值比，还分析了这两个因素的综合作用。
在接受调查的学生中，7.2%的男生和1.8%的女生被归类为每日吸烟者。认为自己非常肥胖的学生每日吸烟风险往往较低（男生的OR = 0.61，95% CI = 0.47至0.79；女生的OR = 0.66，95% CI = 0.47至0.93）。此外，肥胖或超重BMI类别的男生每日吸烟风险较低（OR = 0.86，95% CI：0.77 - 0.96）。仅在女学生中，低BMI与每日吸烟的较高比值比显著相关（OR = 1.24，95% CI：1.02 - 1.52）。当将这两个客观和主观因素配对时，结果表明，在男生和女生中，主观身体形象对每日吸烟的影响均大于BMI。
在男女生中，主观身体形象对每日吸烟的影响均大于体重指数。对于每日吸烟的预测，使用BMI和主观身体形象相结合的模型最适合女生，而仅使用主观身体形象的模型最适合男生。这些结果包括与韩国学生每日吸烟相关的几个因素，为青少年吸烟干预和戒烟计划的制定与实施提供了有用的数据。
