Period

Number of cases

Countries

p value

Yarney et al. [27]

2004-2013

669

Ghana

0.000

Okolo et al. [25]

1998-2000

67

Nigéria

0.000

Lovely et al. [28]

2015-2017

620

Inde

0.035

Čamdžić et al. [26]

2015-2019

615

Bosnie-Herzégovine

0.003

Our study

2013-2021

654

Sénégal

0.000