The cumulative incidence and trends of rare diseases in South Korea: A nationwide study of the administrative data from the National Health Insurance Service database from 2011-2015

Sung Shil Lim, Wanhyung Lee, Yeong Kwang Kim, Jihyun Kim, Jong Heon Park, Bo Ram Park, Jin Ha Yoon

Research output: Contribution to journalReview article

3 Citations (Scopus)

Abstract

Background: The burden of rare diseases on society and patients' families has increased in Korea. However, because of the infrequency of rare diseases, there is a lack of resources and information to address these cases and inadequate funding for the management of these patients. We investigated the average annual cumulative incidence of rare diseases and the trends in annual cumulative incidence from 2011 to 2015 in Korea by using nationwide administrative data from the Korean National Health Insurance Service (NHIS) database for patients registered with the co-payment assistance policy for rare and incurable diseases. Annual cumulative incidence per 10,000,000 was calculated as the total number of newly enrolled patients with the Korean Standard Classification of Diseases (KCD)-7 code in the register, divided by the number of residents with health insurance coverage during each year. We employed simple linear regression analysis to evaluate the trends in annual cumulative incidence/10,000,000 population per year for each rare disease. Results: Overall, national support was provided for patients with 415 KCD codes listed among the targeted rare diseases. The total number of newly enrolled patients with rare diseases was 53,831 in 2011, 52,658 in 2012, 52,955 in 2013, 71,530 in 2014, and 70,559 in 2015. The number of rare diseases with an average annual cumulative incidence of 100/10,000,000 and above was 22 (5.30%), while there were 227 (54.70%) and 148 (35.66%) with an average cumulative incidence between 1/10,000,000 and 100/10,000,000 and less than 1/10,000,000, respectively. The trends in the annual cumulative incidence for 43 rare diseases were statistically significant (p-value < 0.05). The rare diseases for which the incremental trend per year was statistically significant were sarcoidosis (D86, D86.0, D86.1, D86.2, D86.3, D86.8, D86.9), Parkinson's disease (G20), Guillain-Barré syndrome (G61.0), primary biliary cirrhosis (K74.3) and Sjogren's syndrome (M35.0). Conclusions: The number of rare diseases showing an increasing trend in annual cumulative incidence was higher than the number of diseases showing a decreasing trend in annual cumulative incidence. Given that the definition and diagnosis vary based on country and that there is difficulty in identifying valid cases, further detection strategies are needed to establish the incidence of each rare disease considering the importance of establishing a health policy based on the actual incidence of the targeted diseases.

Original languageEnglish
Article number1032
JournalOrphanet Journal of Rare Diseases
Volume14
Issue number1
DOIs
Publication statusPublished - 2019 Feb 18

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Republic of Korea
National Health Programs
Rare Diseases
Databases
Incidence
Korea
Insurance Coverage
Biliary Liver Cirrhosis
Sjogren's Syndrome
Health Insurance
Sarcoidosis
Health Policy
Parkinson Disease
Linear Models

All Science Journal Classification (ASJC) codes

  • Genetics(clinical)
  • Pharmacology (medical)

Cite this

@article{754ae50637b74d44b038e17c74e6a59d,
title = "The cumulative incidence and trends of rare diseases in South Korea: A nationwide study of the administrative data from the National Health Insurance Service database from 2011-2015",
abstract = "Background: The burden of rare diseases on society and patients' families has increased in Korea. However, because of the infrequency of rare diseases, there is a lack of resources and information to address these cases and inadequate funding for the management of these patients. We investigated the average annual cumulative incidence of rare diseases and the trends in annual cumulative incidence from 2011 to 2015 in Korea by using nationwide administrative data from the Korean National Health Insurance Service (NHIS) database for patients registered with the co-payment assistance policy for rare and incurable diseases. Annual cumulative incidence per 10,000,000 was calculated as the total number of newly enrolled patients with the Korean Standard Classification of Diseases (KCD)-7 code in the register, divided by the number of residents with health insurance coverage during each year. We employed simple linear regression analysis to evaluate the trends in annual cumulative incidence/10,000,000 population per year for each rare disease. Results: Overall, national support was provided for patients with 415 KCD codes listed among the targeted rare diseases. The total number of newly enrolled patients with rare diseases was 53,831 in 2011, 52,658 in 2012, 52,955 in 2013, 71,530 in 2014, and 70,559 in 2015. The number of rare diseases with an average annual cumulative incidence of 100/10,000,000 and above was 22 (5.30{\%}), while there were 227 (54.70{\%}) and 148 (35.66{\%}) with an average cumulative incidence between 1/10,000,000 and 100/10,000,000 and less than 1/10,000,000, respectively. The trends in the annual cumulative incidence for 43 rare diseases were statistically significant (p-value < 0.05). The rare diseases for which the incremental trend per year was statistically significant were sarcoidosis (D86, D86.0, D86.1, D86.2, D86.3, D86.8, D86.9), Parkinson's disease (G20), Guillain-Barr{\'e} syndrome (G61.0), primary biliary cirrhosis (K74.3) and Sjogren's syndrome (M35.0). Conclusions: The number of rare diseases showing an increasing trend in annual cumulative incidence was higher than the number of diseases showing a decreasing trend in annual cumulative incidence. Given that the definition and diagnosis vary based on country and that there is difficulty in identifying valid cases, further detection strategies are needed to establish the incidence of each rare disease considering the importance of establishing a health policy based on the actual incidence of the targeted diseases.",
author = "Lim, {Sung Shil} and Wanhyung Lee and Kim, {Yeong Kwang} and Jihyun Kim and Park, {Jong Heon} and Park, {Bo Ram} and Yoon, {Jin Ha}",
year = "2019",
month = "2",
day = "18",
doi = "10.1186/s13023-019-1032-6",
language = "English",
volume = "14",
journal = "Orphanet Journal of Rare Diseases",
issn = "1750-1172",
publisher = "BioMed Central",
number = "1",

}

The cumulative incidence and trends of rare diseases in South Korea : A nationwide study of the administrative data from the National Health Insurance Service database from 2011-2015. / Lim, Sung Shil; Lee, Wanhyung; Kim, Yeong Kwang; Kim, Jihyun; Park, Jong Heon; Park, Bo Ram; Yoon, Jin Ha.

In: Orphanet Journal of Rare Diseases, Vol. 14, No. 1, 1032, 18.02.2019.

Research output: Contribution to journalReview article

TY - JOUR

T1 - The cumulative incidence and trends of rare diseases in South Korea

T2 - A nationwide study of the administrative data from the National Health Insurance Service database from 2011-2015

AU - Lim, Sung Shil

AU - Lee, Wanhyung

AU - Kim, Yeong Kwang

AU - Kim, Jihyun

AU - Park, Jong Heon

AU - Park, Bo Ram

AU - Yoon, Jin Ha

PY - 2019/2/18

Y1 - 2019/2/18

N2 - Background: The burden of rare diseases on society and patients' families has increased in Korea. However, because of the infrequency of rare diseases, there is a lack of resources and information to address these cases and inadequate funding for the management of these patients. We investigated the average annual cumulative incidence of rare diseases and the trends in annual cumulative incidence from 2011 to 2015 in Korea by using nationwide administrative data from the Korean National Health Insurance Service (NHIS) database for patients registered with the co-payment assistance policy for rare and incurable diseases. Annual cumulative incidence per 10,000,000 was calculated as the total number of newly enrolled patients with the Korean Standard Classification of Diseases (KCD)-7 code in the register, divided by the number of residents with health insurance coverage during each year. We employed simple linear regression analysis to evaluate the trends in annual cumulative incidence/10,000,000 population per year for each rare disease. Results: Overall, national support was provided for patients with 415 KCD codes listed among the targeted rare diseases. The total number of newly enrolled patients with rare diseases was 53,831 in 2011, 52,658 in 2012, 52,955 in 2013, 71,530 in 2014, and 70,559 in 2015. The number of rare diseases with an average annual cumulative incidence of 100/10,000,000 and above was 22 (5.30%), while there were 227 (54.70%) and 148 (35.66%) with an average cumulative incidence between 1/10,000,000 and 100/10,000,000 and less than 1/10,000,000, respectively. The trends in the annual cumulative incidence for 43 rare diseases were statistically significant (p-value < 0.05). The rare diseases for which the incremental trend per year was statistically significant were sarcoidosis (D86, D86.0, D86.1, D86.2, D86.3, D86.8, D86.9), Parkinson's disease (G20), Guillain-Barré syndrome (G61.0), primary biliary cirrhosis (K74.3) and Sjogren's syndrome (M35.0). Conclusions: The number of rare diseases showing an increasing trend in annual cumulative incidence was higher than the number of diseases showing a decreasing trend in annual cumulative incidence. Given that the definition and diagnosis vary based on country and that there is difficulty in identifying valid cases, further detection strategies are needed to establish the incidence of each rare disease considering the importance of establishing a health policy based on the actual incidence of the targeted diseases.

AB - Background: The burden of rare diseases on society and patients' families has increased in Korea. However, because of the infrequency of rare diseases, there is a lack of resources and information to address these cases and inadequate funding for the management of these patients. We investigated the average annual cumulative incidence of rare diseases and the trends in annual cumulative incidence from 2011 to 2015 in Korea by using nationwide administrative data from the Korean National Health Insurance Service (NHIS) database for patients registered with the co-payment assistance policy for rare and incurable diseases. Annual cumulative incidence per 10,000,000 was calculated as the total number of newly enrolled patients with the Korean Standard Classification of Diseases (KCD)-7 code in the register, divided by the number of residents with health insurance coverage during each year. We employed simple linear regression analysis to evaluate the trends in annual cumulative incidence/10,000,000 population per year for each rare disease. Results: Overall, national support was provided for patients with 415 KCD codes listed among the targeted rare diseases. The total number of newly enrolled patients with rare diseases was 53,831 in 2011, 52,658 in 2012, 52,955 in 2013, 71,530 in 2014, and 70,559 in 2015. The number of rare diseases with an average annual cumulative incidence of 100/10,000,000 and above was 22 (5.30%), while there were 227 (54.70%) and 148 (35.66%) with an average cumulative incidence between 1/10,000,000 and 100/10,000,000 and less than 1/10,000,000, respectively. The trends in the annual cumulative incidence for 43 rare diseases were statistically significant (p-value < 0.05). The rare diseases for which the incremental trend per year was statistically significant were sarcoidosis (D86, D86.0, D86.1, D86.2, D86.3, D86.8, D86.9), Parkinson's disease (G20), Guillain-Barré syndrome (G61.0), primary biliary cirrhosis (K74.3) and Sjogren's syndrome (M35.0). Conclusions: The number of rare diseases showing an increasing trend in annual cumulative incidence was higher than the number of diseases showing a decreasing trend in annual cumulative incidence. Given that the definition and diagnosis vary based on country and that there is difficulty in identifying valid cases, further detection strategies are needed to establish the incidence of each rare disease considering the importance of establishing a health policy based on the actual incidence of the targeted diseases.

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U2 - 10.1186/s13023-019-1032-6

DO - 10.1186/s13023-019-1032-6

M3 - Review article

C2 - 30777110

AN - SCOPUS:85061849682

VL - 14

JO - Orphanet Journal of Rare Diseases

JF - Orphanet Journal of Rare Diseases

SN - 1750-1172

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M1 - 1032

ER -