Translation, cultural adaptation and assessment of psychometrics properties of the Extended Version of the Nordic Musculoskeletal Questionnaire (NMQ-E) in Persian language speaking people

Table 4 Test-retest reliability of NMQ-E in an combined occupational settings (n = 110), Age of Onset and Prevalence Questions and internal consistency

Regions	Age at the onset of trouble			Life time prevalence	Annual Prevalence	Month prevalence	Point prevalence	Internal consistency
Regions	ICC(2,1) (95% CI))	SEM (yrs)	MDC₉₅	Kappa Coefficient	Kappa Coefficient	Kappa Coefficient	Kappa Coefficient	α Cronbach
Neck	0.93 (0.87–0.98)	1.65	4.57	1.00	1.00	0.96	0.94	0.95
Shoulders	0.92 (0.81–0.99)	0.98	2.71	0.94	0.98	0.93	0.98	0.87
Upper Back	0.88 (0.80–0.93)	1.25	3.46	1.00	0.98	0.95	1.00	0.87
Elbows	0.96 (0.93-1.00)	0.78	2.16	0.98	1.00	0.96	0.97	0.88
Wrist/hands	0.98 (0.95–0.99)	1.35	3.73	0.95	0.95	1.00	1.00	0.88
Low back	0.94 (0.92–0.99)	0.89	2.46	0.93	0.92	0.94	1.00	0.92
Hips/thighs	0.98 (0.89-1.00)	1.25	3.46	0.91	0.98	0.94	0.99	0.92
Knees	0.96 (0.74–0.99)	1.88	5.20	1.00	1.00	0.90	1.00	0.91
Ankles/feet	0.91 (0.88–0.99)	1.29	3.57	0.89	0.96	0.94	0.98	0.87

ISSN: 1471-2474