Sehyug Kwon

Meal skipping relates to food choice, understanding of nutrition labeling, and prevalence of obesity in Korean fifth grade children

This study was performed to investigate the differences in food choice, nutrition labeling perceptions, and prevalence of obesity due to meal skipping in Korean elementary school children. A national survey was performed in 2010 to collect data on food intake frequency, understanding of nutrition labeling, and body mass index from 2,335 fifth grade students in 118 elementary schools selected from 16 metropolitan local governments by stratified cluster sampling. The data were analyzed using the SAS 9.1 and SUDAAN 10.0 packages. Students who consumed three meals for 6-7 days during the past week were classified into the regular meal eating (RM) group (n = 1,476) and those who did not were placed into the meal skipping (MS) group (n = 859). The daily intake frequency of fruits, vegetables, kimchi, and milk was significantly lower in the MS group compared to that in the RM group (P < 0.001), whereas the daily intake frequency of soft drinks and instant noodles (ramyeon) was significantly higher in the MS group than that in the RM group (P < 0.05). The MS group demonstrated a significantly lower degree of understanding with regard to nutrition labeling and high calorie foods containing low nutritional value than that in the RM group. The distribution of obesity based on the percentile criteria using the Korean growth chart was different between the MS and RM groups. The MS group (8.97%) had a higher percentage of obese subjects than that in the RM group (5.38%). In conclusion, meal skipping was related to poor food choice, low perception of nutrition labeling, and a high prevalence of obesity in Korean fifth grade children.

Production and evaluation of children's dietary life safety index data on metropolitan cities and provinces in Korea

This pilot study was performed to produce data of the Childrens Dietary Life Safety (CDLS) Index which is required by the Special Act on Safety Management of Childrens Dietary Life and to evaluate the CDLS Index for 7 metropolitan cities and 9 provinces in Korea. To calculate the CDLS Index score, data regarding the evaluation indicators in the childrens food safety domain and childrens nutrition safety domain were collected from the local governments in 2009. For data regarding the indicators in the childrens perception & practice domain, a survey was conducted on 2,400 5th grade children selected by stratified sampling in 16 local areas. Relative scores of indicators in each domain were calculated using the data provided by local governments and the survey, the weights are applied on relative scores, and then the CDLS Index scores of local governments were produced by adding scores of the 3 domains. The national average scores of the food safety domain, the nutrition safety domain and the perception and practice domain were 23.74 (14.67-26.50 on a 40-point scale), 16.65 (12.25-19.60 on a 40-point scale), and 14.88 (14.16-15.30 on a 20-point scale), respectively. The national average score of the CDLS Index which was produced by adding the scores of the three domains was 55.27 ranging 46.44-58.94 among local governments. The CDLS Index scores produced in this study may provide the motivation for comparing relative accomplishment and for actively achieving the goals through establishment of the target value by local governments. Also, it can be used as useful data for the establishment and improvement of childrens dietary life safety policy at the national level.

An analysis of Chinese studies on the management of science, technology and innovation

Summary This paper reviews the top Chinese language journals on the management of science, technology and innovation (TIM) during 2000–2007 compared to the international and Korean journals. There are more than a dozen Chinese journals, and the volume has grown rapidly. Among these journals, only the top three journals have more articles than the 10 international TIM journals. However, there are many differences between Chinese studies and international studies: quite low number of references, shorter article length, two or three times more publication by each author, broad coverage of each journal showing the range of technology‐firm‐industry and different understanding of authorship.