Authors

Grade SBR-EE

Statistical test

Ayyad Maroc [16] 2010 n = 48

Grade 3 (49%)

0.4437

Bouzid Tunisie [11] 2013 n = 124

Grade 2 (41.1%)

0.10076

Fleurier France [17] 2017 n = 155

Grade 3 (49%)

0.4437

Notre étude Mali 2021 n = 87

Grade 2 (50.6%)