Korean Journal of Community Nutrition

Research Article

[English]
Vegetable and Nut Food Groups are Inversely Associated with Hearing Loss- a Cross-sectional Study from the Korea National Health and Nutrition Examination Survey: Sunghee Lee, Jae Yeon Lee; Korean J Community Nutr 2020;25(6):512-519. Published online December 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.6.512

Abstract PDF: Objectives
A cross-sectional study was conducted to investigate the associations between food groups and hearing loss. Methods: Data of 1,312 individuals were used from the Korea National Health and Nutrition Examination Survey 2013. Hearing loss was determined with a pure tone average (PTA) of greater than 25 dB in either ear. The PTA was measured as the average hearing threshold at speech frequencies of 0.5, 1, 2, and 4 kHz. The dietary intake was examined with a food frequency questionnaire with 112 food items. The food items were classified into 25 food groups. A weighted logistic regression was used to investigate the association. Results: Individuals in the highest tertile of vegetables and nuts food groups were less likely to have hearing loss than those in the lowest tertile [Odds Ratio (OR) = 0.58 (95% Confidence interval (CI) 0.38-0.91), P = 0.019; OR = 0.59 (95% CI 0.39-0.90), P = 0.020, respectively], after adjusting for confounding variables of age, sex, body mass index, drinking, smoking, diabetes, hypertension, and physical activity. Conclusions: In this cross-sectional study, we observed that high intake of vegetables and nuts food groups revealed significant inverse associations with hearing loss, after adjusting for confounding variables among 1,312 participants.

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Original Articles

[English]
The association between Coffee Consumption and All-cause Mortality According to Sleep-related Disorders: Sunghee Lee, Wookyoun Cho, Namhan Cho, Chol Shin; Korean J Community Nutr 2015;20(4):301-309. Published online August 31, 2015; DOI: https://doi.org/10.5720/kjcn.2015.20.4.301

OBJECTIVES
While recent studies showed that coffee consumption reduced the risk of all-cause mortality, no study has examined the effect of coffee consumption on all-cause mortality related to sleep disorders. We aimed to examine whether sleep-related disorders would differently affect the association between coffee consumption and the risk of all-cause mortality among 8,075 adults aged 40 to 69 years.
METHODS
In a prospective cohort study, the study participants were biennially followed up for 12 years from 2001 to 2012. On each follow-up visit, the participants underwent comprehensive tests including anthropometric examinations, interviewer-administered questionnaires, and biochemical tests. Coffee consumption frequency and the amount were measured using a semi-quantitative food frequency questionnaire. Using death certificate data from Korean National Statistical Office, the vital status of each study participant was identified. Sleep-related disorders were examined with interviewer-administered questionnaires. We estimated Hazard ratios and the corresponding 95% confidence intervals from Cox Proportional Hazard models. Multivariable models were established after adjusting for center, total caloric intake, age, gender, body mass index, physical activity, education, smoking, drinking, hypertension, diabetes, total cholesterol, c-reactive protein, energy-adjusted food groups of refined grains, vegetables, fruits, meat, fish, and dairy.
RESULTS
Compared with those who had no coffee consumption, participants who had about three cups of coffee per day showed a reduced risk of all-cause mortality, after adjusting for covariates. Those who had a sleep-related disorder showed no significant effect of coffee consumption on the risk of all-cause mortality, whereas those who had no sleep-related disorders showed significantly reduced risk of all-cause mortality.
CONCLUSIONS
Our findings suggested that approximately three cups of coffee per day would be beneficial to reduce the risk of all-cause mortality only among adults with no sleep-related disorders. Coffee consumption should be prudent for those with sleep-related symptoms.

Citations

Citations to this article as recorded by

Association with obesity and abdominal obesity according to the kind and amount of coffee intake in Korean adults: 2013 ~ 2016 Korea National Health and Nutrition Examination Survey
Hyoung-seop Park, Jung-Sug Lee
Journal of Nutrition and Health.2019; 52(4): 369. CrossRef

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[English]
The Relationship between Stress, Social Support and Healthy Diet Score among Chinese University Students in Korea: Sunghee Lee, Zhen Feng, Youngmee Lee; Korean J Community Nutr 2015;20(4):273-280. Published online August 31, 2015; DOI: https://doi.org/10.5720/kjcn.2015.20.4.273

Abstract PDF PubReader: OBJECTIVES
The study aimed to examine whether healthy diet score was associated with stress and social support among 472 Chinese college students in Korea.
METHODS
The study participants were 472 (187 male, 285 female) Chinese college students in Gyeong-gi area. From April 2013 to Oct 2013, participants were asked to fill out questionnaires on healthy diet score (20 questions), stress (20 questions), and social support (20 questions). Each question was scored by a 5-point Likert scale (total scores of each questionnaire were ranged from 20 to 100). Questions on healthy diet were sub-categorized as 'Healthy food eating (HFE)', 'Healthy eating habits (HEH)', and 'Avoidance of unhealthy food (AUF)'. Reliability test was conducted with Cronbach's alphalpha (alpha=0.79).
RESULTS
Healthy diet score was higher in participants who stayed longer in Korea, who spoke Korean language fluently, and who assessed his or her own health status as very good. Adjusted means of healthy diet scores were estimated after adjusting for age, gender, body mass index, duration of staying, and Korean language fluency. According to tertile categories, participants with low tertile stress but high tertile social support showed the highest score of healthy diet (72.59+/-1.45), whereas participants with high tertile of stress but low tertile of social support had the lowest score of healthy diet (59.22+/-1.54). As for the three sub-categories of healthy diet score, the score of HFE increased as the score of social support increased.
CONCLUSIONS
Our findings suggested that social support system is beneficial to alleviate stress and to improve healthy diet score.

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