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Volume 27, Number 12—December 2021
Research

Novel Use of Capture-Recapture Methods to Estimate Completeness of Contact Tracing during an Ebola Outbreak, Democratic Republic of the Congo, 2018–2020

Jonathan A. Polonsky, Dankmar Böhning, Mory Keita, Steve Ahuka-Mundeke, Justus Nsio-Mbeta, Aaron Aruna Abedi, Mathias Mossoko, Janne Estill, Olivia Keiser, Laurent Kaiser, Zabulon Yoti, Patarawan Sangnawakij, Rattana Lerdsuwansri, and Victor J. Del Rio VilasComments to Author 
Author affiliations: World Health Organization, Geneva, Switzerland (J.A. Polonsky); Institute of Global Health, University of Geneva, Geneva (J.A. Polonsky, M. Keita, J. Estill, O. Keiser, L. Kaiser); University of Southampton, Southampton, UK (D. Böhning); World Health Organization Regional Office for Africa, Brazzaville, Republic of the Congo (M. Keita, Z. Yoti); Institut National de Recherche Biomédicale, Kinshasa, Democratic Republic of the Congo (S. Ahuka-Mundeke, M. Mossoko); Ministere de la Santé Publique, Kinshasa (J. Nsio-Mbeta, A. Aruna Abedi); Thammasat University, Bangkok, Thailand (P. Sangnawakij, R. Lerdsuwansri); World Health Organization South East Asia Regional Office, New Delhi, India (V.J. Del Rio Vilas)

Main Article

Table 1

Multivariable logistic regression for predictors of loss to followup of contacts of Ebola virus disease case-patients, Beni Health Zone, Democratic Republic of the Congo, July 31, 2018–April 26, 2020*

Independent variable No. contacts Unadjusted
 Adjusted
OR (95% CI) p value OR (95% CI) p value
Sex
F 41,349 Referent Referent
M
 37,296
 1.07 (1.02–1.12)
 0.003
1.06 (1.01–1.11)
 0.013
Age group, y
0–14 20,616 Referent Referent
15–29 26,142 1.18 (1.11–1.25) <0.001 1.19 (1.12–1.27) <0.001
30–44 17,665 1.16 (1.09–1.24) <0.001 1.18 (1.10–1.26) <0.001
45–59 6,157 1.56 (1.43–1.70) <0.001 1.55 (1.43–1.69) <0.001
>60
 2,599
 1.64 (1.46–1.84)
 <0.001
1.65 (1.47–1.86)
 <0.001
Epidemic wave†
First wave 14,374 Referent Referent
Second wave 66,182 0.85 (0.81–0.90) <0.001 0.83 (0.79–0.88) <0.001

*OR, odds ratio. †Contacts were divided into 2 epidemic waves according to the date of symptom onset of their associated primary case-patient (first wave, July 31, 2018–February 28, 2019; second wave, March 1, 2019–April 26, 2020).

Main Article

Page created: October 06, 2021
Page updated: November 19, 2021
Page reviewed: November 19, 2021
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