Authors/year | Total Participants | Working Time | p value |
Filipek-Czerska et al. [7] [2021] | 84 | >16 years | p = 0.0010 |
Bussato et al. [12] [2017] | 43 | 15.3 years | p = 0.01 |
Al-Darraji et al. [11] [2015] | 420 | >12 months | p = 0.007 |