Our findings are in agreement with that of the study
by Zare et al. that categorized 14.3% and 56% of
workers using QEC as low and high risk level,
respectively (26). Moreover, our results are not in
accordance with that of the study by Qutubuddin et
al. that categorized 18.18% and 55.46% of workers
using REBA as low and high risk level, respectively
(29). Chiasson et al. (30) and Qutubuddin et al. (31)
have reported the percentage of assessed
workstations that were classified in the high risk
category using REBA as 70% and 23.6%, and using
QEC as 35% and 34.21%, respectively. At first
glance, the smallest and largest proportions of the
high risk category in our study were assigned to
REBA and QEC, respectively. These amounts differ
from the results of the abovementioned studies.