Table 1 Summary table of study characteristics

1

Iliyasu et al. (2021b)

Nigeria

To assess the predictors of acceptability of Covid-19 vaccines and reasons for vaccine hesitancy among members of staff of a tertiary hospital in Kano State, Northern Nigeria

Clinical and non-clinical staff of the hospital

Hospital-based

Sequential explanatory mixed method study (Structural survey and in-depth interview)

343

Stratified Purposive

SPSS version 22

Thematic analysis using the framework approach

Primary data from survey respondents and in-depth interview participants

2

Adebisi et al (2021)

Nigeria

To understand the perception of social media users regarding a hypothetical COVID-19 vaccine in Nigeria

Adult male and female social media users in Nigeria

Web-based

Cross-sectional survey

517

Non-probability convenient sampling

STATA 14 software

Simple descriptive analysis

Inferential Statistics (Chi-square test)

Primary data from survey

3

Iliyasu et al. (2021a)

Nigeria

1. To assess predictors of acceptability of COVID-19 vaccine among adults in urban Kano

2. To identify reasons for vaccine hesitancy among adults in urban Kano Northern Nigeria

Adults in Tarauni and Nassarawa Local government areas of metropolitan Kano

Community-based

Mixed method design

450

Multi-stage sampling method

SPSS version 22

Logistic regression

Thematic analysis using the framework approach

Primary data from survey respondents and in-depth interview participants

4

Agha et al (2021)

Nigeria

To understand drivers of COVID-19 vaccination uptake among healthcare workers in Nigeria

Adults Facebook users in Nigeria

Web-based

Cross-sectional survey

496

Stratified sampling

Basic descriptive statistics

Multivariate analysis

Primary data from survey respondents

5

Kayanda et al., (2021)

Sub-Saharan African countries

To estimate willingness to accept the COVID-19 vaccine and identify differences in acceptance across countries and population groups

Adults’ participants in High- frequency phone surveys

Telephone-based

Quantitative descriptive

416 million people (38% of the population of Sub-Saharan Africa)

Random sampling

Multivariate logistic regression

Descriptive statistics

Cross-country comparable data from 6 sub-Saharan African countries

6

Okafor et al (2021)

Nigeria

To assess the acceptability and willingness to pay for hypothetical COVID-19 vaccine among Nigerians

Adults with internet access

Web-based

Cross-sectional survey

770

Not stated

Multivariate logistic regression

SPSS version 25

Primary data from phone survey respondents

7

Solis Arce et al. (2021)

Asia

Africa

South America

Russia

To analyse COVID-19 acceptance across 15 survey samples covering 10 low and middle-income countries

Adults with access to mobile phones

Telephone-based

Cross-sectional survey

44,260

Random sampling

Random digit dialling

R-software version 4.0.4

Random effect meta-analysis model

Primary data from phone survey respondents

8

Amuzie et al (2021)

Nigeria

To assess the socio-demographic factors associated with COVID-19 vaccine hesitancy among healthcare workers in Abia State, southeast Nigeria

Healthcare workers

Hospital-based

Cross-sectional survey

416

Simple random sampling

SPSS version 26

Bivariate analysis

Multiple logistic regression

Descriptive Statistics

Primary data from phone survey respondents

9

Uzochukwu et al (2021)

Nigeria

To estimate the proportion of the Nnamdi Azikwe University community willing to be vaccinated against COVID-19, level of hesitancy and its associated factors

Adult students and staff of the University

Community-based

Cross-sectional surveys

349

Convenience sampling technique

SPSS version 23 and Minitab version 19

Inferential statistics- Chi-square test

Descriptive statistics

Primary data from phone survey respondents

10

Adigwe (2021)

Nigeria

To investigate the factors associated with vaccine hesitancy and willingness to pay for COVID-19 vaccination

Adults residing in Abuja metropolis

Community and web-based

Cross-sectional surveys

1767

Snowball sampling strategy

SPSS version 25

Inferential statistics- Chi-square test

Descriptive statistics

Primary data from phone survey respondents

11

Eze et al (2021)

Nigeria

To assess the determinants of the COVID-19 vaccine acceptability among Nigerians

Adults in schools Corporate organisations, residential and, recreational areas and faith-based institutions

Population -based

Cross-sectional study

360

Simple random sampling

SPSS version 22, Inferential statistics, Chi-square test. Bivariate analysis

Primary data from phone survey respondents

12

Iliyasu et al (2022)

Nigeria

To assess the acceptability of the COVID-19 vaccine and identify predictors of vaccine hesitancy among people living with HIV/AIDS (PLWHIV) in a tertiary hospital in Kano State, Nigeria

Adult patients living with HIV

Clinic-based

Sequential explanatory mixed-method study

360

Systematic sampling

SPSS version 22

Binary Logistic regression

Thematic analysis using the framework approach

Primary data from survey respondents and in-depth interview participants

13

Adedeji- Adenola et al., (2022)

Nigeria

To assess the factors influencing the awareness, perception and willingness to receive the COVID-19 vaccine among Nigerian adults

Adults-male and female, social media users in Nigeria

Web-based

Cross-sectional survey

664

Snowball sampling technique

SPSS version 24 and Microsoft Excel

Logistic regression model

Primary data from survey respondents

14

Harapan et al., (2022)

Asia

Africa

South America

To determine the level of COVID-19 vaccine hesitancy among communities

Adults in Asia, Africa, and South America with internet access

Web-based

Cross -sectional study

1832

Not stated

SPSS software

Logistic regression model

Primary data from survey respondents

15

Anjorin et al (2021)

Africa

To assess the potential for COVID-19 vaccine hesitancy and its determinants among Africans

Adult social media users

Web-based

Cross-sectional Continent-wide (Africa) survey

5416

Convenience Sampling method

Descriptive Statistics

Chi-Square test

Bivariate logistic regressive model

Primary data from survey respondents