epiH Search


Epidemiol Health > Accepted Articles
Epidemiology and Health 2022;e2022106.
DOI: https://doi.org/10.4178/epih.e2022106    [Accepted] Published online Nov 15, 2022.
Perceived usefulness of COVID-19 tools for contact tracing among contact tracers in Korea
Seonyeong Gong1,2  , Jong Youn Moon1,3  , Jaehun Jung1,2 
1Department of Preventive Medicine, Gachon University College of Medicine, Incheon, Korea
2Artificial Intelligence and Big-Data Convergence Center, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
3Center for Public Healthcare, Gachon University Gil Medical Center, Incheon, Korea
Correspondence  Jong Youn Moon ,Email: eastside1st@gmail.com
Jaehun Jung ,Email: eastside1st@gmail.com
Received: Apr 27, 2022  Accepted after revision: Nov 15, 2022
In Korea, contact tracing for coronavirus disease 2019 is conducted using the information from credit card records, handwritten visitor logs, KI-Pass (QR code), and Safe Call after an interview. We aimed to assess the usefulness of these tools for contact tracing.
The 2 months (July to September 2021) long anonymous online survey was conducted. Contact tracers from throughout Korea were included as the participants. The questionnaire consisted of 4 parts: 1) demographic characteristics, 2) usefulness of each tool for contact tracing, 3) order in which information is checked during contact tracing, and 4) match rate between tools for contact tracing, screening test rate, response rate, and helpfulness (rated on a Likert scale).
A total of 190 individuals participated in the survey. When asked to rate the usefulness of each tool for contact tracing on a Likert scale, most respondents (86%) provided positive response for “credit card records”, while the most common response for “handwritten visitor logs” was negative. The actual helpfulness of positive response was KI-Pass (91%), Credit card records (83%), Safe Call (78%), and Handwritten visitor logs (22%).
Over 80% of participants provided positive responses to credit card records, KI-Pass, and Safe Call data, while approximately 50% provided negative responses regarding the usefulness of handwritten visitor logs. Our findings highlight the need to unify systems for contact tracing performed after an interview to increase their convenience for contact tracers, as well as the need to improve tools that utilize handwritten visitor logs for digitally vulnerable groups.
Keywords: COVID-19; Contact tracing; KI-Pass; Entry log
Share :
METRICS Graph View
  • 0 Crossref
  • 0 Scopus
  • 228 View
  • 0 Download


Browse all articles >

Editorial Office
Department of Preventive Medicine, Yonsei University College of Medicine
50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
TEL: +82-2-745-0662   FAX: +82-2-764-8328    E-mail: office.epih@gmail.com

Copyright © 2022 by Korean Society of Epidemiology.

Developed in M2PI

Close layer
prev next