Morbidity and related factors among elderly people in South Korea: results from the Ansan Geriatric (AGE) cohort study

Eun-kyung Woo^*¹ , Changsu Han^*²^,3 , Sangmee Ahn Jo¹^,4 , Min Kyu Park³^,5 , Sungsoo Kim¹ , Eunkyung Kim¹ , Moon Ho Park¹^,5 , Juyoung Lee⁶ and Inho Jo¹

¹Center for Biomedical Sciences, National Institute of Health, 194 Tongil-ro, Eunpyeong-gu, Seoul [122-701], Republic of Korea

²Department of Psychiatry, Korea University Medical College, 516 Gojan-1-dong, Danwon-gu, Ansan-city, Gyeonggi- do [425-707], Republic of Korea

³The Geriatric Health Clinic and Research Institute (GHCRI), Korea University Medical College, 516 Gojan-1-dong, Danwon-gu, Ansan-city, Gyeonggi- do [425-707], Republic of Korea

⁴Biomedical Brain Research Center, National Institute of Health, 194 Tongil-ro, Eunpyeong-gu, Seoul [122-701], Republic of Korea

⁵Department of Neurology, Korea University Medical College, 516 Gojan-1-dong, Danwon-gu, Ansan-city, Gyeonggi- do [425-707], Republic of Korea

⁶Center for Genome Research, National Institute of Health, 194 Tongil-ro, Eunpyeong-gu, Seoul [122-701], Republic of Korea

author email corresponding author email* Contributed equally

BMC Public Health 2007, 7:10doi:10.1186/1471-2458-7-10


Published:	22 January 2007

Abstract

Background

A thorough examination of the morbidity and comorbidity profiles among the elderly and an evaluation of the related factors are required to improve the delivery of health care to the elderly and to estimate the cost of that care. In South Korea where the aged population is rapidly increasing, however, to date only one study using a limited sample (84 subjects) has provided information on morbidity and related factors among the elderly. Using a large, stratified, random sample (2,767 subjects) from the population-based Ansan Geriatric study, the present study sought to assess the morbidity and comorbidity, and to determine the relationships of these variables with sociodemographic and health characteristics in elderly people in South Korea.

Methods

A total of 2,767 subjects (1,215 men and 1,552 women) aged 60–84 years were randomly selected from September 2002 to August 2003 in Ansan, South Korea. Data on sociodemographic and health characteristics, and clinical diagnosis were collected using questionnaires. When available, the medical records and medications taken by the subjects were also cross-checked.

Results

Of the total subjects, 78.0% reported diagnosed disease, 11.0% had been cured, and 46.8% had been diagnosed with more than two diseases. The mean number of morbidities per person among elderly Koreans was 1.62 ± 1.35 (mean ± standard deviation), and women had a greater number of diseases per person than did men. The most common morbidities were chronic diseases such as hypertension, arthritis, and diabetes mellitus. In women, osteoporosis and arthritis were the second and third most prevalent diseases, respectively. Morbidity was significantly associated with gender, employment, household income, alcohol intake, self-assessed health status, and worries about health.

Conclusion

These data will enhance understanding of the patterns of health problems among elderly Koreans and will contribute to the application of appropriate intervention strategies.