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Original Article
Comparison of HIV characteristics across 3 datasets: the Korea HIV/AIDS Cohort Study prospective, retrospective, and national reporting system
Yunsu Choi, Jun Yong Choi, Bo Youl Choi, Bo Young Park, Shin-Woo Kim, Joon Young Song, Jung Ho Kim, Sang Il Kim
Epidemiol Health. 2024;46:e2024055.   Published online June 18, 2024
DOI: https://doi.org/10.4178/epih.e2024055
  • 1,818 View
  • 89 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
The Korea HIV/AIDS Cohort Study has been conducted prospectively for 18 years. However, it faces limitations in representing the entire population of patients with human immunodeficiency virus (HIV) in Korea. To address these limitations and validate the study design, we analyzed characteristics across several HIV datasets.
METHODS
We compared epidemiological and clinical characteristics from 3 datasets: the Korea HIV/AIDS Cohort Study (dataset 1, n=1,562), retrospective cohort data (dataset 2, n=2,665), and the national HIV reporting system of the Korea Disease Control and Prevention Agency (KDCA) (dataset 3, n=17,403).
RESULTS
The demographic characteristics of age, sex, and age at HIV diagnosis did not differ significantly across datasets. However, dataset 3 contained a higher proportion of patients diagnosed after 2008 (69.5%) than the other datasets. Regarding transmission routes, same-sex contact accounted for a greater proportion of dataset 1 (59.8%) compared to datasets 2 (20.9%) and 3 (32.6%). The proportion of patients with CD4 T-cell counts below 200/mm<sup>3</sup> at HIV diagnosis was higher in datasets 1 (39.4%) and 2 (33.3%) compared to dataset 3 (16.3%). Initial HIV viral load measurements were not obtained for dataset 3.
CONCLUSIONS
The Korea HIV/AIDS Cohort Study demonstrated representativeness regarding the demographic characteristics of Korean patients. Of the sources, dataset 1 contained the most data on transmission routes. While the KDCA data encompassed all HIV patients, it lacked detailed clinical information. To improve the representativeness of the Korea HIV/AIDS Cohort Study, we propose expanding and revising the cohort design and enrolling more patients who have been recently diagnosed.
Summary
Korean summary
장기간 운영된 코호트 연구는 다양한 편향으로 인해 모집단의 대표성을 잃을 수 있다. 대표성을 높이기 위해서는 편향을 최소화하고 지속적으로 변화하는 임상 역학적 지침과 특성을 반영할 수 있어야 한다. 지난 18년간 운영된 한국 HIV/AIDS 코호트 연구에서는 코호트 연구 참여 기관에 방문하는 감염인 중 연구 참여자와 비참여자의 특성을 비교하고, 질병관리청 신고자료와의 분포를 비교한 결과, 코호트 연구에 참여하는 것만으로도 대상자 특성에 차이가 있음을 밝혔다. 이에 따라 편향을 최소화하고 대표성을 높일 수 있도록 코호트 연구 설계를 대대적으로 개편하고, 향후 지속될 연구 설계를 제안한다.
Brief Communication
Prospective cohort data quality assurance and quality control strategy and method: Korea HIV/AIDS Cohort Study
Soo Min Kim, Yunsu Choi, Bo Youl Choi, Minjeong Kim, Sang Il Kim, Jun Young Choi, Shin-Woo Kim, Joon Young Song, Youn Jeong Kim, Mee-Kyung Kee, Myeongsu Yoo, Jeong Gyu Lee, Bo Young Park
Epidemiol Health. 2020;42:e2020063.   Published online September 4, 2020
DOI: https://doi.org/10.4178/epih.e2020063
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  • 220 Download
  • 3 Web of Science
  • 3 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
The aim of effective data quality control and management is to minimize the impact of errors on study results by identifying and correcting them. This study presents the results of a data quality control system for the Korea HIV/AIDS Cohort Study that took into account the characteristics of the data.
METHODS
The HIV/AIDS Cohort Study in Korea conducts repeated measurements every 6 months using an electronic survey administered to voluntarily consenting participants and collects data from 21 hospitals. In total, 5,795 sets of data from 1,442 participants were collected from the first investigation in 2006 to 2016. The data refining results of 2015 and 2019 were converted into the data refining rate and compared.
RESULTS
The quality control system involved 3 steps at different points in the process, and each step contributed to data quality management and results. By improving data quality control in the pre-phase and the data collection phase, the estimated error value in 2019 was 1,803, reflecting a 53.9% reduction from 2015. Due to improvements in the stage after data collection, the data refining rate was 92.7% in 2019, a 24.21%p increase from 2015.
CONCLUSIONS
Despite this quality management strategy, errors may still exist at each stage. Logically possible errors for the post-review refining of downloaded data should be actively identified with appropriate consideration of the purpose and epidemiological characteristics of the study data. To improve data quality and reliability, data management strategies should be systematically implemented.
Summary
Korean summary
이 연구는 한국 에이즈 코호트 자료의 연구 목적과 역학적 특성을 고려한 체계적인 질 관리 방법과 결과를 제시한다. 시간적 선후 관계를 고려한 로직을 활용한 자료정제 과정을 비롯한 3단계의 체계적인 질 관리 방법은 이제껏 없었던 국내 코호트 자료 질 관리에 도움이 될 것으로 사료된다.

Citations

Citations to this article as recorded by  
  • Adopting Data to Care to Identify and Address Gaps in Services for Children and Adolescents Living With HIV in Mozambique
    Belmiro Sousa, Sergio Chiale, Hayley Bryant, Lisa Dulli, Tanya Medrano
    Global Health: Science and Practice.2024; 12(2): e2300130.     CrossRef
  • Effect of characteristics on the clinical course at the initiation of treatment for human immunodeficiency virus infection using dimensionality reduction
    Yunsu Choi, Bo Youl Choi, Sang Il Kim, Jungsoon Choi, Jieun Kim, Bo Young Park, Soo Min Kim, Shin-Woo Kim, Jun Yong Choi, Joon Young Song, Youn Jeong Kim, Hyo Youl Kim, Jin-Soo Lee, Jung Ho Kim, Yoon Hee Jun, Myungsun Lee, Jaehyun Seong
    Scientific Reports.2023;[Epub]     CrossRef
  • A Nationwide Evaluation of the Prevalence of Human Papillomavirus in Brazil (POP-Brazil Study): Protocol for Data Quality Assurance and Control
    Jaqueline Driemeyer Correia Horvath, Marina Bessel, Natália Luiza Kops, Flávia Moreno Alves Souza, Gerson Mendes Pereira, Eliana Marcia Wendland
    JMIR Research Protocols.2022; 11(1): e31365.     CrossRef
Original Article
Epidemiological characteristics of HIV infected Korean: Korea HIV/AIDS Cohort Study
Yunsu Choi, Bo Youl Choi, Soo Min Kim, Sang Il Kim, June Kim, Jun Young Choi, Shin-Woo Kim, Joon Young Song, Youn Jeong Kim, Dae Won Park, Hyo Youl Kim, Hee-Jung Choi, Mee-Kyung Kee, Young Hyun Shin, Myeongsu Yoo
Epidemiol Health. 2019;41:e2019037.   Published online September 3, 2019
DOI: https://doi.org/10.4178/epih.e2019037
  • 18,400 View
  • 355 Download
  • 24 Web of Science
  • 20 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
To manage evidence-based diseases, it is important to identify the characteristics of patients in each country.
METHODS
The Korea HIV/AIDS Cohort Study seeks to identify the epidemiological characteristics of 1,442 Korean individuals with human immunodeficiency virus (HIV) infection (12% of Korean individuals with HIV infection in 2017) who visited 21 university hospitals nationwide. The descriptive statistics were presented using the Korea HIV/AIDS cohort data (2006-2016).
RESULTS
Men accounted for 93.3% of the total number of respondents, and approximately 55.8% of respondents reported having an acute infection symptom. According to the transmission route, infection caused by sexual contact accounted for 94.4%, of which 60.4% were caused by sexual contact with the same sex or both males and females. Participants repeatedly answered the survey to decrease depression and anxiety scores. Of the total participants, 89.1% received antiretroviral therapy (ART). In the initial ART, 95.3% of patients were treated based on the recommendation. The median CD4 T-cell count at the time of diagnosis was 229.5 and improved to 331 after the initial ART. Of the patients, 16.6% and 9.4% had tuberculosis and syphilis, respectively, and 26.7% had pneumocystis pneumonia. In the medical history, sexually transmitted infectious diseases showed the highest prevalence, followed by endocrine diseases. The main reasons for termination were loss to follow-up (29.9%) and withdrawal of consent (18.7%).
CONCLUSIONS
Early diagnosis and ART should be performed at an appropriate time to prevent the development of new infection.
Summary
Korean summary
국내 감염인은 대부분 성 접촉으로 인해 감염되었고, 감염인의 약 90%가 치료를 경험하였다. 하지만 여전히 결핵, 매독, 주폐포자충 폐렴 등과 같은 HIV 관련 질환의 유병률이 높았고, 치료를 통해 수명이 연장되어 노화 혹은 치료 약제 부작용과 관련된 HIV 비 관련 만성 질환의 유병률도 높았다. 향후 감염인의 HIV/AIDS 비 관련 질환에 대한 연구 및 사망 원인 등에 대한 후속 연구가 필요하겠다.

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  • Factors associated with health-related quality of life among people living with HIV in South Korea: Tobit regression analysis
    Gwang Suk Kim, Layoung Kim, SangA Lee, Mi-So Shim, Youngjin Lee, Seoyoung Baek, Claus Kadelka
    PLOS ONE.2024; 19(5): e0303568.     CrossRef
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    Soo Min Kim, Yunsu Choi, Sangwook Kang, Korea HIV/AIDS cohort study
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    Sang Min Ahn, Yong Seop Lee, Min Han, Jung Ah Lee, Jae Eun Seong, Yae Jee Baek, JongHoon Hyun, Jung Ho Kim, Jin Young Ahn, Dong Hyun Oh, Su Jin Jeong, Ji Hyeon Baek, Nam Su Ku, Hee Kyoung Choi, Yoonseon Park, BumSik Chin, Young Keun Kim, Joon Sup Yeom, Yo
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    Boyoung Park, Kyoung Hwan Ahn, Yunsu Choi, Jung Ho Kim, Hye Seong, Youn Jeong Kim, Jun Young Choi, Joon Young Song, Eunjung Lee, Yoon Hee Jun, Young Kyung Yoon, Won Suk Choi, Myungsun Lee, Jaehyun Seong, Shin-Woo Kim
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    Ji Yun Bae, Soo Min Kim, Yunsu Choi, Jun Yong Choi, Sang Il Kim, Shin-Woo Kim, Bo Young Park, Bo Youl Choi, Hee Jung Choi
    Infection & Chemotherapy.2022; 54(3): 409.     CrossRef
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Cohort Profile
Korea HIV/AIDS Cohort Study: study design and baseline characteristics
Bo Youl Choi, Jun Yong Choi, Sang Hoon Han, Sang Il Kim, Mee-Kyung Kee, Min Ja Kim, Shin-Woo Kim, Sung Soon Kim, Yu-Mi Kim, Nam Su Ku, Jin-Soo Lee, Joo-Shil Lee, Yunsu Choi, Kyong Sil Park, Joon Young Song, Jun Hee Woo, Moon Won Kang, June Kim
Epidemiol Health. 2018;40:e2018023.   Published online June 6, 2018
DOI: https://doi.org/10.4178/epih.e2018023
  • 18,967 View
  • 384 Download
  • 16 Web of Science
  • 14 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
The number of persons infected by HIV/AIDS has consistently increased in Korea since the first case of HIV/AIDS infection in 1985 and reached 15,208 by 2016. About 1,100 new patients with HIV/ AIDS infections have emerged every year since 2013. In Korea, the Korea HIV/AIDS Cohort Study was established for the evidenced-based prevention, treatment, and effective management of patients infected with human immunodeficiency virus (HIV) in December 2006. This study monitored 1,438 patients, who accounted for about 10% of all patients with HIV/AIDS in Korea, for 10 years with the following aims: (1) to develop an administrative system for the establishment of a HIV/AIDS cohort-based study; (2) to standardize methodologies and the case report forms; and (3) to standardize multi-cohort data and develop a data cleaning method. This study aims to monitor at least 1,000 patients (excluding those for whom investigation had been completed) per year (estimated number of patients who can be monitored by January 2018: 939). By December 2016, the sex distribution was 93.3% for men, and 6.7% for women (gender ratio, 13.9:1.0), and 98.9% of all participants were Korean. More than 50.0% of the participants were confirmed as HIV positive after 2006. This study reports competitive, long-term research that aimed to develop policies for the prevention of chronic infectious diseases for patients with HIV. The data collected over the last decade will be used to develop indices for HIV treatment and health promotion.
Summary
Korean summary
세계적으로 HIV 감염인은 감소하고 있으나, 한국의 HIV 감염은 증가하여 2013년 이후 매년 1,000명이 넘는 신규 감염인이 보고되고 있다. HIV/AIDS 코호트 연구진은 2006년부터 HIV 감염인과 AIDS 환자를 대상으로 6개월 간격의 반복 조사를 시행하여 역학과 임상 자료를 수집하여 데이터베이스를 구축하고, 생물검체를 채취하여 인체자원은행에 보관하여, HIV/AIDS의 발생 기전을 구명하고, 자연사를 파악하며, 예방과 진단, 치료, 관리 방법을 개발하기 위한 기초와 임상, 역학 연구에 활용하고 있다.

Citations

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