EVOLVE-HBV (Evaluation of Vukuzazi LiVEr disease - Hepatitis B): A retrospective serosurvey of Hepatitis B Virus (HBV) infection, exposure, and vaccine-mediated immunity using archived samples from the Vukuzazi Study (2018-2020).
South Africa, 2018 - 2020
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Reference ID
AHRI.EVOLVE.HBV
Producer(s)
Siyabonga Nxumalo, Lusanda Mazibuko, Nompumelelo Mkwanazi, Prof Philippa C Matthews, Prof Collins Iwuji, Dr Motswedi Anderson, Kathy Baisley, Gregory Ording-Jespersen, Mark Siedner, Emily Wong, Willem Hanekom, Vukuzazi Field Team, Sample Processing Unit, Khanyi Msomi, Theresa Smit, Dickman Gareta,
Metadata
Created on
Jul 14, 2026
Last modified
Jul 14, 2026
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930
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- Data files
- vk_evolve
Age category at enrolment (ageatenrolmentcat)
Data file: vk_evolve
Overview
Valid:
2200
Invalid:
0
Type:
Discrete
Decimal:
0
Width:
12
Range:
1 - 12
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1 | <20 | 509 |
23.1%
|
| 2 | 20-24 | 506 |
23%
|
| 3 | 25-29 | 147 |
6.7%
|
| 4 | 30-34 | 160 |
7.3%
|
| 5 | 35-39 | 155 |
7%
|
| 6 | 40-44 | 144 |
6.5%
|
| 7 | 45-49 | 162 |
7.4%
|
| 8 | 50-54 | 124 |
5.6%
|
| 9 | 55-59 | 97 |
4.4%
|
| 10 | 60-64 | 74 |
3.4%
|
| 11 | 65-69 | 57 |
2.6%
|
| 12 | 70+ | 65 |
3%
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.