• The korean journal of orthodontics
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• v.42 no.6
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• pp.329-334
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• 2012

Objectives: To determine the prevalence of incidental maxillary sinus findings in a large sample of orthodontic patients by cone-beam computed tomography (CBCT) with a wide field of view and assess the relationships of such abnormalities with age and gender. Methods: Five hundred thirteen CBCT scans obtained for orthodontic diagnosis and treatment planning in a Northern Italian population (N = 513; 292 female and 221 male subjects; 1,026 maxillary sinuses) were studied. The frequencies of pseudocysts and mucosal thickening of the maxillary sinus were recorded. Logistic regression analysis was used to determine the influence of age and gender on these abnormalities. Results: Pseudocysts were detected in 52 patients (10.1%) and 59 sinuses (5.75%). Mucosal thickening was observed in 206 patients (40.1%) and 258 sinuses (25.1%). Gender and age were significantly associated with pseudocysts (p = 0.027) and mucosal thickening (p < 0.001), respectively. Conclusions: Half of the orthodontic patients had incidental maxillary sinus findings. Men were more likely to show pseudocysts, and older patients (aged 41 - 60 years) were more likely to show mucosal thickening.

• Korean Journal of Adult Nursing
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• v.15 no.2
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• pp.193-204
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• 2003

Purpose: Perceived barriers to exercise were investigated for adults. Method: A total 1266 subjects were selected by a quota sampling method with age, gender, and residence. Perceived barriers were categorized under 4 groups: knowledge, psychological, physical, and external factors. All 23 items of perceived barriers were responded on a dichotomous (yes/no) scale. Result: Mean number of perceived barriers was 4.61 and 87.9% subjects perceived at least one barrier which prevented involvement in exercise. External barriers ranked highest, followed in order by psychological, knowledge, and physical barriers. Most factors of perceived barriers were found to be different by age, gender, and residence, in that, the younger, female, living in Daejeon subjects were found to respond with more barriers than the older, male, living in Chungju or Seoul. Conclusion: Perceived barriers to exercise are differenct by age, gender, and residence. Therefore, it is recommended that age, gender, and residence of subjects must be considered in order to develop exercise programs and public campaigns.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.6
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• pp.3969-3974
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• 2013

The purpose was to provide a descriptive epidemiological assessment of the incidence of cancer of the larynx in Kazakhstan and spatial evaluation with gender characteristics. Thgis retrospective study covered all new cases of laryngeal cancer in 11 years (1999-2009). The total number was 4,967 cases, 4,535 (91.3%) in males and 432 (8.7%) in women, with a ratio of 10.5:1. The higher incidence in men compared to women was evident in all age groups, the differences being statistically significant (p<0.05). At the same time revealed a unimodal growth with age, peaking at 70 years and older both sexes. In the dynamics, incidence rates of laryngeal cancer demonstrated a tendency to decrease, in women (T=-6.7%) this being more pronounced than in men (T=-3.3%). Levels were determined to produce cartograms of cancer of the larynx for male and female populations, clear geographical variation being evidenced. The data are discussed with reference to possible risk factors.

• Journal of Labour Economics
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• v.39 no.2
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• pp.1-34
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• 2016

We estimate the effect of an increase in the minimum wage on employment. In Korea, there is no exogenous variation in the minimum wage across regions or industries. One single minimum wage is applied to every worker in the whole country. In this paper, we exploit arguably exogenous variation in the proportion of workers affected by the minimum wage across worker groups defined by age, sex, education, tenure and establishment size. Using the data from the Survey on Labor Conditions by Type of Employment (SLCTE) from 2006 to 2014, we find that a 1% increase in the minimum wage decreases the full-time equivalent employment by about 0.14%. The effect is heterogeneous across workers; we find the effect is more adverse for female workers, low-educated, younger and older workers, workers with a shorter tenure, and workers in small- and medium-sized establishments.

• Korean Journal of Health Education and Promotion
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• v.32 no.2
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• pp.27-37
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• 2015

Objectives: As the increasing of the length of the lifespan, more recent policy interest are concerned with how many years of life are lived without functional disability or activity limitation. We investigated the relationship between deprivation and activity limitation at the 251 local authority level. Methods: The data were derived from the 2010 Census 10% sample data. Crude and age-standardized activity limitation rates by gender at the ages of 50 or over and deprivation index were calculated. Mapping and multiple linear regression analysis were applied to explore relationship between area activity limitation and area deprivation. Results: There were considerable differences in activity limitation rate across the 251 local authorities. Age-standardized activity limitation rate in both male and female were strongly associated with the level of area deprivation. Especially, low social class, male unemployment, or non-apartment residents at the local level were strong positive association with local authorities' age-standardized activity limitation. Conclusion: More policy attention is needed for tackling regional inequality in activity limitation among older adults.

• Korean Journal of Veterinary Service
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• v.41 no.3
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• pp.179-183
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• 2018

A survey on the seroprevalence of Dirofilaria immitis infection among 2,197 Jindo dogs (371 males, 1,826 females) was conducted from 2011 to 2015 using an antigen test (SNAP 4Dx plus, IDEXX, USA). The overall seroprevalence of D. immitis infection in Jindo dogs was 21.8% (479/2,197), and an increase was observed in the seroprevalence of infection from 19.4% in 2011 to 25.8% in 2015. The infection rates were higher among male dogs (32.1%, 119/371) than female dogs (19.7%, 360/1,826)(P<0.01). The infection rates of D. immitis in Jindo dogs at the age of under 1 years-old, 1 to 2 years-old, 2 to 3 years-old and over 3 years old were 10.7% (76/710), 20.0% (190/950), 36.4% (156/428) and 52.3% (57/109), respectively. The older dogs had higher infection rates than the younger dogs (P<0.01). This study indicates that the prevalence rate of D. immitis in Jindo dogs is higher than previously reported in studies which utilized an antigen test.

• The Research Journal of the Costume Culture
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• v.6 no.4
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• pp.74-83
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• 1998

The purpose of this study was to extract information of lower body type's classification on pre-school children. To this end, 325 younger children living in the capital area and aged from 4 to 6 were sampled to be subject to the measurement of their somatotypes. The results are as follows. 1. The changes in the physical types of pre-school children, as they growing older, show the following tow peculiarities, first, in terms of vertical change, the height grows so rapidly that the proportion of the lower part of the body gets longer. And second, in terms of horizontal change, their growth is more distinctive in the width and the girth than in the thickness, which transforms their body into more or loss a dumpy form. 2. The analysis of the lower body of pre-school children allows us to distinguish two types of group. The first type has a smaller body, short in every part of body, which represents the body of four year-old children. On the contrary, the second type show much bigger body, especially the lower part of the body having a longer proportion, and it represents the body of six year-old children. the physical type and the gender have no relation, which means that we cna fidn both male and female children uniformly in both types.

• Journal of Korean Academy of Nursing
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• v.42 no.6
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• pp.810-818
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• 2012

Purpose: This study was done to explore factors relating to number of falls among community-dwelling elders, based on gender. Methods: Participants were 403 older community dwellers (male=206, female=197) aged 60 or above. In this study, 8 variables were identified as predictive factors that can result in an elderly person falling and as such, supports previous studies. The 8 variables were categorized as, exogenous variables; perceived health status, somatization, depression, physical performance, and cognitive state, and endogenous variables; fear of falling, ADL & IADL and frequency of falls. Results: For men, ability to perform ADL & IADL (${\beta}_{32}$=1.84, p<.001) accounted for 16% of the variance in the number of falls. For women, fear of falling (${\beta}_{31}$=0.14, p<.05) and ability to perform ADL & IADL (${\beta}_{32}$=1.01, p<.001) significantly contributed to the number of falls, accounting for 15% of the variance in the number of falls. Conclusion: The findings from this study confirm the gender-based fall prediction model as comprehensive in relation to community-dwelling elders. The fall prediction model can effectively contribute to future studies in developing fall prediction and intervention programs.

• Journal of Korean Public Health Nursing
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• v.26 no.3
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• pp.504-517
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• 2012

Purpose: The aim of this study was to investigate gender differences in risk factors and sleep, depression, and mobility of Korean elderly with and without low back pain and sciatica. Methods: Data were derived from the 2011 Korean National Survey on Older Adults. Participants included 10,674 community-dwelling elderly. The group of elderly subjects with low back pain and sciatica and the group of elderly subjects without low back pain and sciatica were compared according to gender. Result: Age, monthly income, exercise, arthritis, osteoporosis, and providing caring support were significant risk factors for low back pain and sciatica in elderly male subjects. On the other hand, monthly income, living arrangement, arthritis, osteoporosis, providing caring support, and television watching time were significant risk factors in elderly female subjects. Significant differences in depression and mobility according to low back pain and sciatica were observed in both genders. Conclusion: Risk factors for low back pain and sciatica in elderly differed according to gender. Low back pain and sciatica showed an association with depression and mobility. These findings should be considered in planning for nursing intervention for low back pain and sciatica.

• Korean Journal of Occupational Health Nursing
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• v.6 no.2
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• pp.79-95
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• 1997

The purposes of this study were to develop a job stress measurement tool and to identify the job stress according to the characteristics of worker and work condition at the small and medium-sized plants. Data were collected through face-to-face survey for April-May, 1997. Subjects were 180 workers at 36 small and medium-sized plants located near Seoul. Data were analyzed by item analysis, factor analysis, and ANOVA. The results were as follow : 1, Number of items of job stress measurement were 33 and Cronbach's $\alpha$ was .9262 except 13 items with low values of Cronbach's coefficient. Factor analysis was done in order for construct validity and 8 factors were extracted and cumulative percent of variance was 65.6%. 2. The job stress scores of male, the younger, 2-shift workers, and over-time workers were significantly higher than those of female, the older, 1-shift workers, and 48 hour workers per week. 3. There were no significant difference between job stress scores and the groups by number of worker, and the types of manufacturing. The stress measurement tool is valid and very reliable to measure worker's stress. Furthermore, the job stress managent program for health promotion of the workers at the vulnerable work condition is needed more and more.