Diabetes screening in South Korea: a new estimate of the number needed to screen to detect diabetes
- Author:
Kyoung Hwa HA
1
;
Kyung Ae LEE
;
Kyung-Do HAN
;
Min Kyong MOON
;
Dae Jung KIM
Author Information
- Publication Type:2
- From:The Korean Journal of Internal Medicine 2023;38(1):93-100
- CountryRepublic of Korea
- Language:English
-
Abstract:
Background/Aims:The Korean Diabetes Association (KDA) guidelines recommend adults aged ≥ 40 years and adults aged ≥ 30 years with diabetes risk factors for diabetes screening. This study aimed to determine the age threshold for diabetes screening in Korean adults.
Methods:This study was based on the analyses of Korean adults aged ≥ 20 years using the Korea National Health and Nutrition Examination Survey (KNHANES) and the National Health Insurance Service-National Sample Cohort (NHIS-NSC). To evaluate screening effectiveness, we calculated the number needed to screen (NNS).
Results:NNS to detect diabetes decreased from 63 to 34 in the KNHANES and from 71 to 42 in the NHIS-NSC between the ages of 30–34 and 35–39. When universal screening was applied to adults aged ≥ 35, the NNS was similar to that of adults aged ≥ 40. Compared to the KDA guidelines, the rate of missed screening positive in adults aged ≥ 20 decreased from 4.0% to 0.2% when the newly suggested screening criteria were applied.
Conclusions:Universal screening for adults aged ≥ 35 and selective screening for adults aged 20 to 34, considering diabetes risk factors, may be appropriate for detecting prediabetes and diabetes in South Korea.
