ABSTRACT
BACKGROUND: This study was perfomed to estimate the incidence of hip fractures of people older than 50 years in South Korea. METHODS: Information of patients over 50 years of age who had sustained a hip fracture were obtained from the records of eight hospitals in Jeju Island between 2002 and 2006 to calculate the incidence of hip fractures in this age group. RESULTS: There were 820 hip fractures during the study period. The mean age of the patients at the time of fracture was 77.8 years (71.3 years in 181 men, 79.7 years in 639 women). The crude incidence was 128/100,000 (66.1/100,000 in men, 174.4/100,000 in women). The age-specific incidence according to the 10-year age groups increased from 19.3/100,000 for those 50 to 59 years of age to 1,095.4/100,000 for those over 90 years of age (18.9/100,000-960.4/100,000 in men and 19.7/100,000-1112.1/100,000 in women). The standardized incidence of hip fracture to the Caucasian population in the United States in 1990 was 100/100,000 for men and 207/100,000 for women. CONCLUSIONS: Hip fractures will become an important socioeconomic problem in South Korea due to the rapid aging of the population.
Subject(s)
Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Hip Fractures/epidemiology , Incidence , Republic of Korea/epidemiologyABSTRACT
OBJECTIVES: The increased prevalence of asthma over the last 30 years has been reported from many different countries, including Korea. The increased prevalence may be due to increased exposure to indoor air pollutants. METHODS: In this study, the relationship between residential environments and airway hyper-responsiveness has been examined among 280 family members. The bronchial hyper-responsiveness was expressed as the log-transformed slope of FEV decrease over the log-transformed dose of methacholine concentration(BRindex). Simple regression analysis was done for the effect of sex, age, atopic status, and residential environments including active and passive smoking exposures on airway responsiveness. Based on simple regression results, multiple rwegression analysis was performed for total group and also according to sex. RESULTS: The mean of BRindex of residents living in gas boiler heating houses was higher than that of central heating system (p=0.014). Smoking status was a significant determinant of bronchial hyper-responsiveness in both genders; male(p=0.017), female (p%.022). In the male group the mean of BRindex of current smokers was significantly higher than those of ex-smokers and non-smokers, and the mean of BRindex of passive smokers was higher than that of non-smokers, but statistical significance was border-line(p=0.069). In female group, the mean of BRindex of kerosene stove users was higher than that of non-users(p=0.057). CONCLUSIONS: This study suggests that indoor air pollutants including type of heating, passive smoking and kerosene stove use can contribute to the increase in asthma prevalence in Korea.
Subject(s)
Female , Humans , Male , Air Pollutants , Air Pollution, Indoor , Asthma , Heating , Hot Temperature , Kerosene , Korea , Methacholine Chloride , Prevalence , Smoke , Smoking , Tobacco Smoke PollutionABSTRACT
OBJECTIVES: To confirm the HAVS in workers exposed to hand-arm vibration with using the objective diagnostic methods METHODS: Several tests were used to help substantiate a clinical diagnosis of HAVS. Some other diseases were excluded by a medical interview, hematologic assessment, urinalysis, X-rays. The hand-arm vibration acceleration level of the grinder was evaluated for considering HAVS. Peripheral vascular changes were examined by a cold provocation test. An electromyography was implemented to ascertain the peripheral neural changes. RESULTS: 8 workers with symptoms in hands & fingers, exposed to hand-arm vibration were examined. Some other diseases(primary Raynauds disease, secondary Raynauds disease in not occupational origin) were excluded by a medical interview, hematologic assessment, urinalysis, X-rays. The hand-arm vibration acceleration level of the grinder was 7. 9 m/sec2. The recovery time of a skin temperature followed finger cooling was significantly prolonged in 6 workers with HAVS. The nerve conduction velocity was reduced in 6 workers with HAVS. CONCLUSIONS: So we report 6 cases of HAVS in grinding workers exposed to hand-arm vibration diagnosed objectively by an exclusion of some other disease, handarm vibration acceleration level, cold provocation test, electromyography.