Ergonomic risk factors and musculoskeletal disorders in bank staff: an interventional follow-up study in Iran

Journal of the Egyptian Public Health Association

Table 2 Comparative results of mean ROSA score and its components in staff workstations of groups before and after intervention

Variable		Control group			EI group			EPI group
Variable		Before	After	P value*	Before	After	P value*	Before	After	P value*
Chair	Mean	4.41	4.6	0.12	4.63	3.82	< 0.001	4.77	3.47	< 0.001
Chair	S. deviation	0.92	0.81	0.12	0.96	0.63	< 0.001	0.87	0.63	< 0.001
Monitor and telephone	Mean	4.15	4.27	0.083	3.97	1.29	< 0.001	4.18	2.69	< 0.001
Monitor and telephone	S. deviation	1.32	1.27	0.083	1.29	0.59	< 0.001	1.3	0.73	< 0.001
Mouse and keyboard	Mean	3.8	3.78	0.596	3.38	2.97	< 0.001	3.65	2.77	< 0.001
Mouse and keyboard	S. deviation	1.3	1.22	0.596	0.912	0.62	< 0.001	1.07	0.69	< 0.001
ROSA score	Mean	5.02	5.05	0.673	5.04	3.97	< 0.001	5.3	3.57	< 0.001
ROSA score	S. deviation	1.02	1.03	0.673	0.99	0.59	< 0.001	0.79	0.65	< 0.001