Department of Food Industrial Management, Dongguk University, 30 Pildong-ro 1-gil Jung-gu, Seoul 04620, Korea.
Department of Agricultural Economics and Extension, University of Zambia, Lusaka 10101, Zambia.
Int J Environ Res Public Health. 2021 Feb 1;18(3):1306. doi: 10.3390/ijerph18031306.
This study analyzes the self-reported intake of dietary supplements (DS) and their effects on perceived health well-being from a survey with 1210 adult respondents in Korea. To account for selectivity bias from observable confounders, we use a propensity score matching (PSM) model. Our findings show that demographics, health concerns, family history of disease, frequency of hospital visits, and regular exercise are positively associated with intake of DS among consumers. Results from PSM show that the intake of DS leads to significant improvements in perceived health well-being among DS takers relative to DS non-takers regardless of gender, urban residence, having self-reported diseases or not. The paper concludes with implications for policies that promote intake of DS in Korea.
本研究分析了来自韩国的一项包含 1210 名成年受访者的调查中，自我报告的膳食补充剂（DS）摄入量及其对感知健康幸福感的影响。为了解决可观察混杂因素引起的选择性偏差，我们使用了倾向评分匹配（PSM）模型。我们的研究结果表明，在消费者中，人口统计学特征、健康关注度、疾病家族史、就诊频率和定期锻炼与 DS 的摄入量呈正相关。PSM 的结果表明，无论性别、城市居住、是否有自我报告的疾病，与非 DS 使用者相比，DS 使用者的 DS 摄入量会显著提高其感知健康幸福感。本文最后提出了促进韩国 DS 摄入量的政策建议。
