Korean Journal of Community Nutrition

Volume 14(2); April 2009

Original Articles

[English]
Survey of Cookie Consumption and Nutrition Labelling of Cookie Consumed in High School Students: Ji Yeon Yoo, Youngnam Kim; Korean J Community Nutr 2009;14(2):147-157. Published online April 30, 2009

Abstract PDF: The purpose of this study was to find out the information on nutrition labeling and how many calories and nutrients the high school students consumed for 1 day from cookies. A total of 74 male and female high school students in Suwon were surveyed and 56 cookies that they consumed were examined. Background data were collected by questionnaire, cookie intake by 24-hr recall, and the calories and nutrients content in cookies and the amount of intake by nutrition information on the wrapping paper of cookie. The statistical analysis for the data was done by SPSS 12.0. Energy contents in 1 serving size of cookie were 90~315 kcal, average of 170 kcal. The protein contents were 0~7 g, fat 2~20 g, cholesterol 0~55 mg, and sodium 30~390 mg in 1 serving size of cookie. Most of the cookies (80%) examined contained no trans fat at all, which is desirable. Among the types of cookies, snacks contained higher quantities of calories and sodium, the pie contained more sugar and cholesterol, and the biscuit had more trans fat. One fourth of the cookies examined belonged to 'high calorie, low nutritious food' according to the criteria proposed by The Ministry for Health, Welfare and Family Affairs. Thus the excessive intake of cookies might result in nutritional imbalance. There were large differences in calorie intake among students, from zero who did not intake any cookies at all to maximum 818 kcal/day, an average of 75 kcal/day. When the students who did not intake cookies were excluded, energy 205 kcal. fat 10g, sodium 177mg were consumed from the cookie for a 1 day on average.

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[English]
Development of Contents and Textbooks for the Education to Reduce Elementary Students' Fat Intake: Yoo Kyeong Kim, Ju Young Kim, Myeong Hwa Cha, Kyoung Ae Lee, Sungsug Lee, Kyung Hea Lee; Korean J Community Nutr 2009;14(2):158-167. Published online April 30, 2009

Abstract PDF: This study was conducted to reduce children's fat intake and to establish healthy dietary lifestyles. To achieve these goals, we searched, collected, and analyzed the materials related to the fat education, based on which the research personnel-professors and graduate students in nutrition and child education and elementary school teachers- discussed to figure out major topics, objectives, and detailed contents and activities appropriate for fat intake reduction. We also organized an advisory committee composed of 15 professionals in related fields to discuss the adequacy and validity of the specific contents. Finally, we systematically organized the contents and developed children's textbooks and teacher's guidebooks. Considering the different cognitive development stages of junior and senior elementary students we developed two different textbooks for each of them which are easy to read and understand, fun to play with lots of activities, and designed to practice into daily life. The contents cover three major topics-the concept of lipid, lipid in food, lipid in life and are composed of 6 units in total. To help teachers understand and and to instruct, teacher's guidebooks contain an overview of the education, specific information and practical guidelines for each class. We developed these education materials with the aim of lowering children's fat consumption and eventually promoting their health welfare; hopefully we expect these materials would be useful for children's nutritional education in the field.

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[English]
Effectiveness of Nutrition-Exercise Education Program on Weight Control of Adult Women: Mi Yeon Kim, Seo Young Han, Jeong Hee Jeong, Sung Hee Kim, Jin Kyoung Lee, Eun Suk Park, Xian Hua Zhang, Jung Sook Seo; Korean J Community Nutr 2009;14(2):168-174. Published online April 30, 2009

Abstract PDF: This study was conducted to investigate the effectiveness of a nutrition and exercise education program on weight control of adult women. The subjects of this study were 28 adult women aged 20-59 years residing in the Daegu area. The nutrition-exercise educational period was 12 weeks. The collected data consisted of items on general characteristics, anthropometric data, blood biochemical values, physical strength data, dietary behavior and nutrition knowledge scores of the subjects. During the 12 weeks of weight control, body mass index (BMI), % of body fat, body fat mass and waist-hip ratio significantly decreased. The level of plasma triglyceride decreased, but not significantly. The level of total cholesterol did not change compared to baseline before the program. After the weight control program, back muscle strength, sit-ups, push-ups, and sit-and-reach tests of the subjects significantly improved. The nutrition knowledge scores of the subjects significantly increased. Therefore, these results suggest that the nutrition-exercise education program may contribute effectively to weight reduction with improvement of physical strength in adult women.

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[English]
Study on Stress, Depression, Binge Eating, and Food Behavior of High School Girls Based on Their BMI: Ji eun Park, Sung joo Kim, Ryowon Choue; Korean J Community Nutr 2009;14(2):175-181. Published online April 30, 2009

Abstract PDF: The purpose of this study was to investigate the relationships of stress, depression, binge eating and food behavior of high school girls with their degree of BMI. One hundred twenty high school girls from the Seoul metropolitan area participated in this study. Self-administrated questionnaires to search for degree of stress, depression, binge eating, and food behavior were distributed. Anthropometric assessment was carried out to calculate the body mass index (BMI). The results are as follows: The mean of age and BMI of the subjects were 17.6 +/- 0.6 years and 21.0 +/- 2.9 kg/m2 (ranged from 15.4 to 31.7 kg/m2), respectively. 16.7%, 65.8% and 17.5% of the subjects were classified as under weight, normal weight and overweight, respectively. The average scores of stress, depression and binge eating were 124.9 +/- 31.4, 15.2 +/- 9.8, 29.5 +/- 7.8 points, respectively. The food behavior score was 11.5 +/- 2.4 points. Their degree of stress, depression, binge eating was significantly higher in overweight high school girls compared to underweight or normal weight high school girls. There were significant correlations of BMI with stress (P < 0.05), depression (P < 0.001), and binge eating (P < 0.01). Also there were significant correlations of food behavior with stress (P < 0.05), depression (P < 0.05) and binge eating (P < 0.001). These results indicate that the high school girls who have higher BMI seem to have more stress, depression, and binge eating habits. Also the high school girls who have more stress, depression and binge eating habits have poor food behaviors. Therefore proper control of emotions is required to maintain desirable food behaviors in high school girls.

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[English]
Factors Influencing on the Job Satisfaction and the Turnover Intention of Dietitians Working in the Institutions for the Disabled in Korea : Focused on the General Characteristics and the Job Burnout: Hye Sang Lee; Korean J Community Nutr 2009;14(2):182-189. Published online April 30, 2009

Abstract PDF: The purpose of this study is to investigate how certain factors - especially dietitians' general characteristics and job burnout - influence their job satisfaction and turnover intention. The survey was conducted during the period from September 7th to October 15th of 2006. A total of 91 institutions (response rate 74.6%) was analyzed by using SPSS (windows ver. 14.0). A majority of the respondents were females (97.8%) and 30 years or older (66.0%). Among the job burnout dimensions, exhaustion (2.78 +/- 0.07) was rated higher than cynicism (2.62 +/- 0.06), while the professional efficacy level (3.55 +/- 0.05) was relatively high. The dietitians were more satisfied with co-workers (3.73 +/- 0.07) and work (3.41 +/- 0.06) than with pay (2.66 +/- 0.07) and promotion (2.32 +/- 0.07). The work dimension of job satisfaction was negatively correlated with exhaustion and cynicism dimensions of job burnout, and turnover intention (P < 0.001), but positively correlated with professional efficacy dimension (P < 0.001). The supervision dimension was negatively correlated with cynicism (P < 0.05) and turnover intention (P < 0.001), but positively correlated with professional efficacy dimension (P < 0.01). The co-workers dimension was positively correlated with professional efficacy dimension (P < 0.01). The pay dimension was negatively correlated with exhaustion (P < 0.001) and cynicism (P < 0.01) dimensions and turnover intention (P < 0.001). The promotion dimension was negatively correlated with cynicism (P < 0.01). The turnover intention was positively correlated with exhaustion and cynicism dimensions of job burnout (P < 0.001). A hierarchical regression analysis revealed that i) professional efficacy was a factor to significantly increase job satisfaction, ii) cynicism to significantly decrease their job satisfaction, and iii) exhaustion to significantly increase turnover intention.

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[English]
Requirements and Self-evaluation of Knowledge and Skills Necessary for Effective Nutrition Teachers Perceived by School Foodservice Deititians: Na Young Yi, Kyung Eun Lee; Korean J Community Nutr 2009;14(2):190-205. Published online April 30, 2009

Abstract PDF: The purposes of the study were to identify knowledge and skill levels required for effective nutrition teachers and to compare perceived need and dietitians' self-evaluation of the knowledge and skills. A total of 60 knowledge statements and 70 skill statements associated with 11 job functional areas were specified through a literature review and expert panel reviews. A total of 457 dietitians working at school foodservices in Seoul and Gyeonggi province were surveyed using a self-administrated questionnaire and 148 responses were returned. Excluding responses with significant missing data, 142 responses were used for data analysis. In terms of knowledge, 'sanitation, food safety and employee safety (4.60)' category received the highest perceived need score, followed by 'nutrition education (4.56)' and 'nutrition counseling (4.45).' The knowledge category that received the highest self-evaluation was 'nutrition and menu management (3.66)' while the category that received the lowest self-evaluation was 'teaching practices (2.83).' In terms of skills, the highest perceived need was associated with 'nutrition education (4.49)', followed by 'sanitation, food safety and employee safety (4.46)' and 'nutrition counseling (4.39).' The dietitians rated their skills related to 'sanitation, food safety and employee safety (3.67)' the highest but their skills related to 'teaching practices (2.84)' the lowest. The dietitians' self-evaluated knowledge and skill scores were significantly lower than their perceived need of the knowledge and skills in all job functional areas (P < 0.001). A quadratic analysis based on the requirement and self-evaluation of the knowledge and skills revealed that priorities of the education programs targeting school nutrition teachers or students preparing to be a nutrition teacher should be placed on improving knowledge and skills related to nutrition education, nutrition counseling, teaching practices, sanitation and employee safety, and nutrition and menu management. Educational programs for nutrition teachers should be designed to decrease the gaps between the need and self-evaluation of the knowledge and skills for effective nutrition teachers. The findings of the study can be used to develop education materials for nutrition teachers. The knowledge and skills identified in the study should be updated and revised regularly to reflect changes in regulations and current practices in school foodservice programs.

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[English]
Current Status of Meal Box Service Management for Children from Low-income Families During Summer Vacation: Borham Yoon, Jihyun Yoon, Jae Eun Shim, Sooyoun Kwon; Korean J Community Nutr 2009;14(2):206-215. Published online April 30, 2009

Abstract PDF: The purpose of this study was to investigate the current status of foodservice management in organizations delivering meal boxes for low-income children during summer vacation. A survey was conducted with persons in charge of meal box production and service of these organizations via mail. Out of 114 questionnaires distributed nationwide, 100 were analyzed (87.8% analysis rate). Over half (53%) of the organizations delivered meal boxes consisting of rice and side dishes while the rest delivered side dishes only. About 81% of the organizations received KRW 3,000 per meal from their local governments and the rest received KRW 3,500. Only 28% of organizations had employed a dietitian. Over one-third (38%) of the respondents were unaware of the official nutritional standard of the foodservice program for low-income children during vacation. Most of the organizations (94%) had menu planned in advance. The average percentage of food cost was 84.1%. Over 40% of the organizations did not keep food samples for sanitation test (43%) and did not take any measures for keeping food temperature during delivery (45%). The organizations delivering rice and side dishes were more likely to be located in cities rather than rural areas and received higher reimbursement rate. The organizations receiving reimbursement of KRW 3,500 or hiring a dietitian were more likely to use standardized recipes, keep food samples for sanitation test, or take measures for keeping food temperature during delivery compared to the counterparts. Respondents reported that increasing reimbursement rate was the most necessary for improving the quality of meal box. This study results showed that the meal box delivery service for low-income children was not properly managed during the vacation, with regards to menu planning and food production. It is recommended that reimbursement rate for meal boxes should be adjusted depending on meal box types and local conditions.

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[English]
Identifying the Effect of Personal, Foodservice and Organizational Characteristics on Foodservice Managers' Job Satisfaction by the Contract Management Company Scale: Jeong Hye Han, Na Young Yi, Wan Soo Hong; Korean J Community Nutr 2009;14(2):216-228. Published online April 30, 2009

Abstract PDF: The purpose of the study was to investigate the influences of contract foodservice managers' personal characteristics, foodservice characteristics and organizational characteristics on job satisfaction, including interpersonal relationships, self-actualization and promotion opportunity categories. A survey was administered to four hundred contract foodservice managers of five large companies and five small/medium companies in the Seoul and Kyungin areas. The final response rate was 66% (N = 265), and the data were analyzed using SPSS Windows (ver. 12.0). The respondents were 76.1% female, average age 28.8 years, and 73.0% were regular workers. Contract foodservices have profit and loss contracts (69.1%), single menu types (59.6%) and buffet serving styles (37.7%). There are significant differences of job satisfaction by some personal characteristic variables (gender, martial status, age, education, position, work hours, period of working for the present company, and payroll per year) and foodservice characteristic variables (type of contract and charge of food costs). In three job satisfaction categories, foodservice managers reported the highest interpersonal relationship satisfaction, following self-actualization satisfaction and promotion opportunity satisfaction in both large companies and small/medium companies. However, foodservice managers of large companies tended to be more satisfied regarding their promotion opportunities than foodservice managers of small/medium companies (P < 0.05). Work hours, number of meals served/day, male, workload, communication with the clients, relationship with co-workers, obvious role and autonomy were significant factors to increase the job satisfaction in contract foodservices of large companies. On the other hand, relationships with co-workers and males were significant factors to increase the job satisfaction in contract foodservices of small/medium companies. This research suggests that contract foodservice companies need to understand the characteristics of their managers, foodservices and organizations to enhance the job satisfaction of foodservice managers and to develop specified human resource management strategies that can be applied to each company scale.

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Randomized Controlled Trial

[English]
Nutritional Status of Zinc and Copper in Type 2 Diabetic Patients after Short-term Zinc Supplementation: Hyun Mee Oh, Jin Sook Yoon; Korean J Community Nutr 2009;14(2):229-235. Published online April 30, 2009

Abstract PDF: This study was carried out to determine whether a short-term zinc supplementation could improve the zinc status without adverse changes in copper status among type 2 diabetic patients. Seventy-six diabetic subjects and 72 normal adults participated in this study. Subjects were randomly divided into supplemented and control groups. Forty-four diabetic patients and 34 normal subjects were supplemented with 50 mg zinc gluconate daily for 4 weeks. Dietary intakes of participants were measured for two non-consecutive days by 24-hour recall method. Nutritional status of zinc and copper were also evaluated by biochemical measurement of fasting plasma samples and spot urinary collection. At baseline, diabetic patients showed significantly lower levels of dietary zinc intake and higher urinary zinc excretion than the normal adult group (P < 0.05, P < 0.0001). Plasma level of zinc was not significantly different between diabetic and normal adults at baseline. However, plasma zinc level increased significantly in both diabetic patients and normal adults after zinc supplementation. The changes in plasma copper levels following zinc supplementation were not statistically significant in diabetic subjects as well as in normal adults. These results indicated that four weeks of zinc supplementation did not influence Cu status and that it may contribute to improving the zinc status. Therefore, we suggest that Zn supplementation for a short-term period may improve marginal zinc status of diabetic patients without interfering with their copper status

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Original Article

[English]
A Factor Analysis Study on Blood Glucose Control in Diabetics Mellitus Patients(1):Focus on Blood Glucose Control and Lifestyle Factors: Jungeun Jun, Youngmee Lee, Yu jin Oh; Korean J Community Nutr 2009;14(2):236-244. Published online April 30, 2009

Abstract PDF: Dietary therapy is a basic and emphasized treatment for diabetes. Several clinical studies have shown that diet can play a major role in preventing and managing diabetes. The purposes of this study were to evaluate the dietary behavior and to find solutions to barriers of diabetes mellitus patients. From February to July in 2007, questionnaires were distributed to one hundred and ten patients who were diagnosed DM by physicians and excluded first coming out-patients. One hundred and three data were used for statistical analysis using SPSS/Win 12.0. The main results of this study included the following: To measure dietary behaviors and barriers, a five point scale was used with the following labels: 'strongly yes', 'yes', 'fair', 'no', 'strongly no'. Thirteen dietary behaviors related to diabetes were grouped into the following 4 factors using factor analysis; 'taste control factor', 'blood glucose influence factor', 'practice volition factor', and 'exercise factor'. The mean scores of 4 factors were 3.88, 3.48, 3.55, 3.21, respectively. The 'taste control behaviors' score of subjects who had practiced diet therapy (4.00) was higher than those who had not practiced diet therapy (P < 0.05). The 'blood glucose influence behaviors' score of subjects who had nutrition education (3.59) was higher than those who had no nutrition education (P < 0.05) and subjects who had practiced diet therapy showed higher score (3.59) than those who had not practiced diet therapy (P < 0.05). 'Exercise behaviors score' of subjects who were over 60 (3.59) was the lowest (P < 0.05). Subjects who had nutrition education showed higher 'exercise behaviors' scores (3.38) than those who had no nutrition education (P < 0.05). Subjects who had practiced diet therapy showed higher 'practice volition behaviors' scores (3.72) than those who had not practiced diet therapy (P < 0.001). Subjects who were over weight showed the highest 'practice volition behaviors' scores (3.78) concerning BMI (P < 0.05). In conclusion, this study expected that Nutrition educators (Dietitian) applied to patient effective nutrition education and counseling through evaluation of Dietary behaviors and barriers considered management types and ecological factors of diabetes patients. Also diabetic patients were easy to change dietary habits because they formed behaviors through education and counsel and there were positive effects in their blood glucose control through removing barriers related to dietary therapy.

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