- Test-Retest Reliability of a Questionnaire for the Korea Youth Risk Behavior Web-Based Survey.
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Jisuk Bae, Hyojee Joung, Jong Yeon Kim, Kyoung Nam Kwon, Young Taek Kim, Soon Woo Park
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J Prev Med Public Health. 2010;43(5):403-410.
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DOI: https://doi.org/10.3961/jpmph.2010.43.5.403
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- OBJECTIVES
A web-based survey has been administered annually since 2005 throughout Korea to assess the prevalence of adolescent health risk behaviors among middle and high school students. The aim of this study was to evaluate the test-retest reliability of the Korea Youth Risk Behavior Web-based Survey (KYRBWS) questionnaire. METHODS: A convenience sample of 2298 middle and high school students participated in self-administered questionnaire surveys twice, approximately two weeks apart, in 2008. The percent agreement, kappa statistics, and prevalence rates at the first and second surveys were computed for the core subset of 39 self-reported health risk behavior indices of the KYRBWS. RESULTS: Among 39 indices, seven indices had kappas > or = 0.81 and all of the indices had kappas > or = 0.41. Based on non-overlapping 95% confidence intervals, three indices had significantly different prevalence rates between the first and second surveys. In the subgroup analyses by school grade and gender, two indices had significantly different reliability estimates between middle and high school students. There were no significantly different reliability estimates between male and female students, except for one index. CONCLUSIONS: This study demonstrated that the reliability estimates for the KYRBWS questionnaire are varied, but generally reliable over time. The indices with low reliability estimates need to be evaluated further in order to determine whether the indices should be modified or deleted from future versions of the KYRBWS.
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- Seroprevalence of Measles Antibody and its Attributable Factors in Elementary Students of Routine 2-dose Schedule Era with Vaccination Record.
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Geun Ryang Bae, Hyun Sul Lim, Un Yeong Goh, Byung Guk Yang, Young Taek Kim, Jong Koo Lee
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J Prev Med Public Health. 2005;38(4):431-436.
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We investigated the seroprevalence of the measles antibody and its attributable factors for the students who underwent routine 2-dose Schedule Era. METHODS: The subjects were 996 students of the national measles seroepidemiologic study in December 2000 who had vaccination records. We conducted a questionnaire survey and we performed serologic testing for the measles specific IgG by using an enzyme linked immunosorbent assay. RESULTS: The coverage for the first dose of the MMR vaccination at 12-15 months of age was 95.1% and the coverage for the second dose of MMR at 4-6 years of age was 35.0%. The proportion of subjects undergoing 2- doses of MMR decreased as the age of the subjects increased. The seropositive rate of the measles antibody was significantly high in the second dose vaccinees (93.5% in the second dose group, 84.7% in the non-second dose group, p< 0.001) and it was 72.0% in the 0-dose group, 85.4% in the 1-dose group and 93.7% in the 2-dose group (p< 0.001). Two point eight percent of the subjects had a past history of measles infection. On the multiple logistic regression analysis, the first and second dose (odds ratio, 8.54; 95% CI.=3.05-23.91), the first dose (odds ratio, 3.06; 95% CI.=1.20-7.81) and the outbreak in the year 2000 (odds ratio, 1.89; 95% CI.=1.24-2.88) were the significant factors for the eropositivity. CONCLUSIONS: Maintaining high coverage with a 2-dose vaccination program would be the decisive factor to prevent an outbreak of measles and to eliminate measles in Korea.
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- Evaluation of Field Epidemiology Specialist Training Program Based on the Satisfaction and the Changes of Educational Needs.
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No Rai Park, Ihn Sook Jeong, Jong Gu Lee, Young Taek Kim, Jin Ho Chun, Ki Soon Kim, Sang Soo Bae, Jong Myon Bae, Gyung Jae Oh, Hee Chul Ohrr, Kun Sei Lee, Byung Kook Lee, Hun Jae Lee, Hyun Sul Lim, Young Hwangbo
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J Prev Med Public Health. 2004;37(1):80-87.
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To evaluate the learning achievement and satisfaction levels for the Field Epidemiology Specialist Training Program (FESTP), on infectious disease control between March 19 and October 31, 2002. METHODS: The FESTP was designed as a set of 84 hours curricula including lectures, discussions, self-studies, and field practicals, and organized both centrally and locally by the Division of Communicable Disease Control of the National Institute of Health and 11 universities. Before and after the program, a questionnaire survey on the educational need (49 items) and satisfaction (15 items) was conducted on 484 trainees, who were responsible for communicable disease control and immunization at 242 regional health centers. The data were analyzed with paired t-tests for comparison of the educational needs between the pre and post scores. RESULTS: The average score for satisfaction was 3.06 out of 5.0; with relatively higher scores for sincerity (4.10) and professionalism (4.01) of the tutors, adequacy (3.54) and clearness (3.51) of the evaluation criteria, usefulness (3.54) and fitness (3.52) of the contents, but with relatively lower satisfaction for schedule (2.96) and self-studies (2.91). The average for requirement for education improved, as shown by the decrease from 2.72 to 2.22 (p< .0001) with the biggest decrease in the outbreak investigation from 2.60 to 2.08. CONCLUSION: The FESTP was evaluated as being effective, the trainees showed moderate satisfaction and decrease educational needs. However, the actual schedules and self-studies should be rearranged to improve the satisfaction level.
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