• Journal of the Korean Society of School Health
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• v.23 no.1
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• pp.19-28
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• 2010

Purpose: This study was aimed to identify factors related with depression among boys and girls in Korean middle school adolescents. Methods: This study used the data from the 2007 annual survey of youth health behaviors conducted by the Korea Centers for Disease Control and Prevention between the period of 2007/9/1 and 2007/9/22 (with the extension of 2007/10/1 and 2007/11/3). The target number of this study was 21,047 male and 18,424 female students all in the age group of middle school 1st grade and 3rd grade. Results: Depression of middle school adolescents was 33.4% for male students, 43.8% for female students, 38.3% in overall. With regard to the relationship between the demographic characteristics and the health behavior, both male and female students felt more depressed when they had more stress, followed by the cases with stimulant intakes and chronic diseases. For male students, higher level of physical activity was associated with greater level of the depression. For female students, living with only one parent or other person seem to cause more depression. Conclusion: Depression of middle school adolescents requires a special attention from the family, the school and society in general to find out and eliminate the root of these symptoms.

• Journal of agricultural medicine and community health
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• v.42 no.2
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• pp.87-96
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• 2017

Objectives: We studied the relationship between health behavior and subjective unhappiness in high school students. Methods: Using 27,097 responses from the 2015 Korea Youth Risk Behavior Web-based Survey for general high school students. we analyzed by multiple logistic regression based on the complex sample design Results: Unhappiness was positively related with the low economic status, smoking, drinking, fast foods intake, and negatively related with fruit intake in results of multiple logistic regression. Conclusion: Health behaviors have a significant impact on the unhappiness of high school students. Therefore, in-depth research and policies to decrease unhappiness of high school students through health promotion are required.

• Journal of Korean society of Dental Hygiene
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• v.10 no.4
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• pp.585-593
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• 2010

Objectives : The purpose of this study were to measure the effect of factors analyse the associated by the dental treatment fear of level middle school student's, and then to provide basic material which can help to improve adolescent's oral health and dental service. Methods : This subject of study consists of 342 middle schools each 1,2,3 grade Daegu city. The data were collected from July through August 2009, by way of the self-reported questionnaire. The data materials are analyzed by general characteristics and dental service behavior frequency analysis, dental fear of levels general characteristics, dental service behavior, the burden of dental visits, the pain experience of the past ${\chi}^2$-test and dental treatment fear relationship with multiple regression analysis. Results : General characteristics, 56.7% for boys and girls, with 43.3 percent of boys and girls high. dental service behavior in the dental visited was treatment purpose 76.5%, preventive purpose 23.5%. high-level dental treatment fear of the female 60.8%, male 33.0% was higher, The higher age also increased dental fear of the levels, dental services dental visit in 1-2 year the dental fear level of the higher, was statistically significant (p<0.05). Medical purpose 'preventive' than 'treatment' is a higher dental fear. Factors affecting dental treatment fear experiences directly from your pain (${\beta}$=0.116), inadequate anesthesia, treatment experience (${\beta}$=0.126), indirect painful experience (${\beta}$=0.125) in both a statistically significant positive relationship was found (p<0.05). Conclusions : Finally, it is necessary carry out further studies on the improvement of dental service of oral health of adolescent based on the dental treatment fear.

• Journal of Preventive Medicine and Public Health
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• v.51 no.1
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• pp.23-32
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• 2018

Objectives: To identify the associations of characteristics of the neighborhood environment with substance abuse among clients receiving treatment for drug abuse in Thailand. Methods: A cross-sectional study was conducted of 1128 drug addicts from 28 neighborhoods who were receiving treatment at all 7 compulsory drug detention centers in Thailand. A trained interviewer conducted structured interviews with the subjects about substance use and the perceived neighborhood environment in their community. A multilevel logistic regression model was applied to estimate the effects of the neighborhood environment on substance use. Results: The majority of participants, 53.8% only used methamphetamine pills, 31.3% used other illicit drugs as well as methamphetamine pills, and 14.9% used an illicit drug other than methamphetamine. Three neighborhood characteristics were associated with substance use. A 1-unit increase in the perceived neighborhood cohesion score was associated with a 15% reduction in methamphetamine pill use and an 11% reduction of the use of both methamphetamine pills and another illicit drug. Conversely, a 1-unit increase in perceived neighborhood crime predicted 19 and 14% increases in the use of methamphetamine pills and the use of both methamphetamine pills and another illicit drug, respectively. In addition, a 1-unit increase in the scores for stigma surrounding addiction corresponded to a 25% increase of the use of methamphetamine pills and a 12% increase in the use of both methamphetamine pills and another illicit drug. Conclusions: Substance use among drug addicts was influenced by characteristics of the neighborhood environment. Therefore, prevention and intervention strategies should be designed based on a consideration of the impact of neighborhood context on substance use behaviors.

• Journal of Preventive Medicine and Public Health
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• v.55 no.2
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• pp.134-143
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• 2022

Objectives: Many governments have imposed-and are still imposing-mobility restrictions to contain the coronavirus disease 2019 (COVID-19) pandemic. However, there is no consensus on whether policy-induced reductions of human mobility effectively reduce the effective reproduction number (Rt) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Several studies based on country-restricted data reported conflicting trends in the change of the SARS-CoV-2 Rt following mobility restrictions. The objective of this study was to examine, at the global scale, the existence of regional specificities in the correlations between Rt and human mobility. Methods: We computed the Rt of SARS-CoV-2 using data on worldwide infection cases reported by the Johns Hopkins University, and analyzed the correlation between Rt and mobility indicators from the Google COVID-19 Community Mobility Reports in 125 countries, as well as states/regions within the United States, using the Pearson correlation test, linear modeling, and quadratic modeling. Results: The correlation analysis identified countries where Rt negatively correlated with residential mobility, as expected by policymakers, but also countries where Rt positively correlated with residential mobility and countries with more complex correlation patterns. The correlations between Rt and residential mobility were non-linear in many countries, indicating an optimal level above which increasing residential mobility is counterproductive. Conclusions: Our results indicate that, in order to effectively reduce viral circulation, mobility restriction measures must be tailored by region, considering local cultural determinants and social behaviors. We believe that our results have the potential to guide differential refinement of mobility restriction policies at a country/regional resolution.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.1
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• pp.392-401
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• 2010

The purpose of the present study was intended to assess psycosocial stress of male researchers working in a Research Institute, and to reveal the relationship between psycosocial stress and coronary risk factors. Data were obtained from 356 male researchers who underwent health package check-up at the health promotion center of a university hospital from May to June 2007, using by self-administered questionnaire & health check-up. For psycosocial stress, we used the questionnaire with 18 items developed as Psychosocial Well-bing Index(PWI). For coronary risk factors, systolic and diastolic blood pressure(SBP, DBP), triglyceride(TG), total cholesterol(TC), high and low density lipoprotein cholesterol(HDL, LDL), fasting blood sugar(FBS) and % fat rate were measured. As a results, the level of psycosocial stress is influenced by socio-demographic characteristics, job-related characteristics and health-related behaviors. Especially, it was found to have the inter-relational effects that the higher the blood pressure, the higher the level of psycosocial stress.

• Journal of Preventive Medicine and Public Health
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• v.53 no.2
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• pp.106-116
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• 2020

Objectives: This study aimed to develop a valid social contact survey instrument and to verify its feasibility for use among Korean adults. Methods: The Delphi technique was used to develop an instrument to assess social contacts, which was then applied in a cross-sectional pilot study. A panel of 15 medical professionals reviewed the feasibility and validity of each item. The minimum content validity ratio was 0.49. Thirty participants used the developed measure to record contacts during a 24-hour period. Results: After a systematic review, the survey instrument (parts I and II) was developed. Part I assessed social contact patterns over a 24-hour period, and part II assessed perceptions of contacts in daily life and preventive behaviors (hand hygiene and coughing etiquette). High validity and feasibility were found. In the pilot study, the 30 participants had a combined total of 198 contacts (mean, 6.6 daily contacts per person). The participants' age (p=0.012), occupation (p<0.001), household size (p<0.001), education (p<0.001), personal income (p=0.003), and household income (p<0.001) were significantly associated with the number of contacts. Contacts at home, of long duration, and of daily frequency were relatively likely to be physical. Assortative mixing was observed between individuals in their 20s and 50s. Contact type differed by location, duration, and frequency (p<0.001). Conclusions: The developed social contact survey instrument demonstrated high validity and feasibility, suggesting that it is viable for implementation.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.15 no.2
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• pp.114-123
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• 2005

We analyzed the demographic and job features of 197 shipyard workers with work-related musculoskeletal disorders(WMSDs) compensated by the Industrial Accident Compensation Insurance Act, and the features of the disorders, the causes of operation and the induced behaviors. The three shipbuilding companies surveyed were located in Busan Metropolitan city and Gyungsangnam-do. The results were as follows. 1. The ages of WMSDs patients in shipyard were $43.6{\pm}8.6$ and the job tenure was $14.3{\pm}5.6$. The 40's of them was 40.1%, and the 30's was 29.4%. Patients less than 5 year-work duration were 85.3%, and ones more than 16 year-work duration 6.6%. In occupations, welders were 32.5%, pre-welders 17.3%, and setting engineers 6.6%. 2. The causes of WMSDs in shipyard were works(95.4%) and outer crash or accident shock (3.6%). Based on the standard of the NIOSH induced behaviors, the causes were awkward posture (62.9%), excessive movement(19.3%) and repetitive movement(13.7%). 3. The compensated WMSDs by body part was the highest, 36%, in the spines, 32.0% in both the upper limbs and the spines, and 14% in the upper limbs. The number of cases of WMSDs in body were 96 in the cervical, 79 in the lumbar and 72 in the shoulders. 4. As a result of chi-square test(${\chi}^2$) between diagnosis and operation in body, welding and spot welding had the most diagnoses in all parts of the body among other occupations. Chi-square test(${\chi}^2$) between diagnosis and induced behavior in body showed that awkward postures recorded the highest rate and repetitive movements was the second. 5. The most hazardous occupation was the welding(incidence rate=9.7) and the most hazardous behavior was the awkward posture.

• Journal of Korean society of Dental Hygiene
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• v.19 no.2
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• pp.317-327
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• 2019

Objectives: This study aimed to evaluate the effects of occlusion patterns using the T-scan $III^{(R)}$ system and oral parafunctional behaviors on temporomandibular joint disorder (TMD) in female college students. Methods: A questionnaire survey assessed TMD symptoms and oral behavioral checklist (OBC) scores in 120 female college students in their early twenties. Occlusion was evaluated using the T-scan $III^{(R)}$ system. Logistic regression analysis was performed to investigate the relationship between occlusion and OBC scores based on patients' symptoms of TMD and to determine whether OBC scores were a predictor of TMD. Results: A total of 101 participants with an average age of 22 (${\pm}2.17$) years were included in the analysis. The reported symptoms of TMD were categorized as moderate (28.8%), slight (27.7%), severe (25.7%), and asymptomatic (17.8%). Occlusion was analyzed using the T-scan $III^{(R)}$ system, and the mean occlusion time was 0.42(${\pm}0.5$) seconds. The results of logistic regression analysis showed that the group that would 'clench or grind teeth' during sleep showed an odds ratio for TMD that was 8.9 times higher than that in the group without this behavior. The group that would 'hold, tighten, or tense muscles without clenching' while awake showed an odds ratio for TMD that was 21.3 times higher than that in the group without this behavior. Conclusions: We confirmed that oral parafunctional behavior affects TMD. Therefore, we would like to continue studying the diagnosis and treatment of TMD by evaluating occlusion patterns and related OBC scores.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.3
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• pp.480-488
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• 2016

This study examined the levels of ADL and IADL among elderly people who were institutionalized in long-term care facilities and determined their association with socio-demographic characteristics, health status, and health related behaviors. Interviews were performed, during the period from June 1 to July 31, 2015, to 205 elderlies received from long-term care service. As a results, the total mean score was $16.67{\pm}2.11$ for ADL (range: 6~8) and $15.13{\pm}3.79$ for IADL (range: 7~21). The selected factors associated with ADL were with or without a spouse, frequency of going out, subjective health status, and mastication ability. The factors associated with ADL were selected, such as gender, with or without a spouse, frequency of going out, subjective health status, disability of body, and amnesia. In conclusion, the level of ADL and IADL in the elderly people selected from long-term care insurance were influenced by the socio-demographic characteristics, health status and health-related behaviors.