KSPM
Search
- Page Path
- HOME > Search
Original Article
- Completeness Estimation of the Korean Medical Insurance Data in Childhood Asthma.
- M N Ha, H J Kwon, D H Kang, S H Cho, K Y Yoo, Y S Joo, J H Sung, J W Kang, D S Kim, S I Lee
- Korean J Prev Med. 1997;30(2):428-436.
- 2,302 View
- 25 Download
-
Abstract
PDF - OBJECTIVES
: The purpose of this paper is to estimate the completeness of the Korean Medical Insurance Data in childhood asthma. METHODS : Capture-recapture method was used to estimate the prevalence of childhood asthma and case ascertainment rate(completeness) of Korean Medical Insurance Data using two source model, 'Korean Medical Insurance Committee Data (KMICD)' and 'Nationwide Study of Asthma and Allergies in Korean Children'. The asthma cases were restricted to those who were born from 1981 to 1989 and were identified by their Resident Register Number. Asthma cases in Korean Medical Insurance Data were defined as cases coded by ICD-9 493 and ICD-10 J45. In 'Nationwide Study of Asthma and Allergies in Korean Children', asthma cases were defined as the children who had been diagnosed asthma and had experienced symptoms of asthma during the past 12 months. The defined cases in two data sources were matched by 13 digits Resident Register Number. The numbers of matched patients in two data sources were 245 of 32,825 eligible total subjects. Chapman and Wittes' nearly unbiased estimation was used for capture-recapture analysis of two data sources. RESULTS : Observed prevalence rate of childhood asthma was 5.3% and estimated prevalence rate by capture-recapture analysis was 11.6%. The highest prevalence rate was observed in 6-7 age group and the older the rate decreased. The completeness (the proportion of cases ascertained by KMICD to the total observed cases by two data sources) was 20.6%, and ranged from 10.8% to 28.8% by area. CONCLUSIONS : Invalid diagnosis of cases might overestimate the prevalence of childhood asthma and might underestimate the completeness of Korean Medical Insurance Committee Data in this study -
SummaryEnglish Abstract
- Relationship between the Exposure to Ozone in Seoul and the Childhood Asthma-related Hospital Admissions according to the Socioeconomic Status.
- Ji Young Son, Ho Kim, Jong Tae Lee, Sun Young Kim
- J Prev Med Public Health. 2006;39(1):81-86.
- 2,391 View
- 94 Download
-
Abstract
PDF
- BACKGROUND
A number of studies have reported associations between the ambient air pollution concentrations and various health outcomes. Especially, ozone is well known for primary risk factor of asthma attacks. The results of a recent study indicate that the size of the effect on health outcomes due to air pollution varied according to several conditions, including age, gender, race and the socioeconomic status. Therefore, this study was conducted to examine the associations of ozone with the childhood asthma hospitalizations as stratified by the socioeconomic status (SES) at the community level in Seoul, Korea, 2002. METHODS: SES at aggregated levels was measured on the basis of average regional health-insurance rate per citizen in the area. We applied the generalized additive model to analyze the effect of ozone on asthma after controlling for the potential confounding variables that were capable of influencing the results. RESULTS: Our analysis showed that the number of children who were hospitalized for asthma increased as the SES of the residence area decreased. The estimated relative risks of hospitalization for asthma, as stratified by the SES of the community level, were 1.12 (95% confidence interval 1.00-1.25) in districts with the highest SES levels, 1.24 (95% CI=1.08-1.43) within the moderate SES levels, and 1.32 (95% CI=1.11-1.58) in the districts with the lowest SES levels. CONCLUSIONS: Our analysis showed that exposure to air pollution did not equally affect the health status of individuals. This suggests that not only the biological-sensitivity markers, but also the SES of the subjects should be considered as potentially confounding factors. -
Summary
First
Prev
