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The purpose of this study is to look at these relationships in non-diabetic Korean adults. This study was based on data from the KNHANES V-1, which is representative of the population of Korea. A total of 5,492 participants (≥20 years in age) without type 1 or type 2 diabetes, assessed for serum 25-hydroxyvitamin D [25(OH)D], fasting blood glucose and insulin, as well as anthropometric variables, were included in the analyses. The key study results were as follows: First, vitamin D status [vitamin D deficient, 25(OH)D <25 nM; vitamin D insufficient, 25(OH)D ≥25, <50 nM; vitamin D sufficient, 25(OH)D ≥50 nM] was inversely associated with homeostasis model assessment of insulin resistance (HOMA-IR) and beta cell function (HOMA-B) in model 2 (adjusted for age and gender) and 3 (further adjusted for smoking, alcohol drinking, regular exercise, systolic and diastolic blood pressure, waist circumference, and body mass index). Second, in model 4, when further adjusted for total cholesterol, triglycerides, and HDL-C, vitamin D status was inversely associated with HOMA-B. However, association of vitamin D status and HOMA-IR was no longer significant. In conclusion, vitamin D was inversely associated with beta cell function in non-diabetic Korean adults but was not associated with insulin resistance.
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[Purpose] The purpose of this study was to investigate the relationship between fracture and quality of life in Korean adults receiving treatment for osteoporosis based on the 2010 Korean Community Health Survey (KCHS). [Subjects and Methods] This study utilized the raw data of the 2010 KCHS. In the survey, osteoporosis was assessed in 228,903 subjects, excluding 326 for whom there was insufficient data. There were 17,387 subjects with osteoporosis confirmed by a doctor's diagnosis and 9,419 of them were being treated for osteoporosis at the time of the survey. [Results] Among the patients being treated, those with fractures had a significantly lower QOL than patients who did not experience fractures. The lower QOL scores were caused by hip, vertebral and wrist fractures, and in all cases, QOL was significantly lower. Greater numbers of fractures significantly lowered QOL scores compared to participants without fractures. [Conclusion] Fractures in patients receiving treatment for osteoporosis have a direct impact on QOL. Among the different types of fractures, hip fractures resulted in the lowest scores. Therefore, to avoid additional fractures caused by inappropriate management of osteoporosis, we suggest that there is a need to improve fall related self-efficacy and prevention programs.
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[Purpose] The purpose of this study was to identify the distribution of stages of change in the exercise behavior of university students the transtheoretical model. [Subjects and Methods] Study subjects at four universities in G city were surveyed. A total of 1,000 questionnaires were distributed, and 959 responses were analyzed. The collected data was analyzed using descriptive statistics and multiple logistic regression analysis. [Results] Factors that contributed to the transition from the pre-contemplation stage to the contemplation stage included change-experimental processes (C-EP) and change-behavioral processes (C-BP). Factors that contributed to the transition from the contemplation stage to the preparation stage were C-BP and decisional decisional balance-cons (DB-C). Self-efficacy was the factor that contributed to the transition from the preparation stage to the action stage. However, there was no factor that contributed to the transition from the action stage to the maintenance stage. [Conclusion] When exercise behavior change is low, strategies such as giving one-to-one training, having the subjects read relevant books, and providing information are needed. When exercise behavior change is high, it is necessary to heighten self-efficacy by having subjects select and freely conduct appropriate kinds of exercises.