Assessment of musculoskeletal symptoms and their impacts in the adolescent population: adaptation and validation of a questionnaire

Table 2 Test-Retest reliability results (n = 39)

	Musculoskeletal symptoms - 6 months				Impact of symptoms on school and/or work				Impact of symptoms on activities
	n (%)	P_o	Kappa	McNemar (P < 0.05)	n (%)	P_o	Kappa	McNemar (P < 0.05)	n (%)	P_o	Kappa	McNemar (P < 0.05)
Neck	22 (57.9%)	0.97	0.95	N/S	2 (5.1%)	1.00	1.00	N/S	5 (12.8%)	0.92	0.68	N/S
Shoulders	12 (30.8%)	0.87	0.72	N/S	1 (2.6%)	1.00	1.00	N/S	5 (12.8%)	0.92	0.68	N/S
Upper back	17 (43.6%)	0.97	0.95	N/S	1 (2.6%)	0.97	0.66	N/S	5 (12.8%)	0.97	0.89	N/S
Elbows	2 (5.1%)	0.97	0.79	N/S	0 (0%)	1.00	*	*	2 (5.1%)	0.97	0.66	N/S
Wrists/Hands	10 (26.3%)	0.82	0.57	N/S	2 (5.3%)	0.92	1.00	N/S	5 (13.2%)	1.00	1.00	N/S
Low back	16 (42.1%)	0.95	0.89	N/S	2 (5.1%)	1.00	1.00	N/S	8 (20.5%)	0.92	0.75	N/S
Hips/thighs	9 (23.1%)	0.92	0.78	N/S	1 (2.6%)	1.00	1.00	N/S	4 (10.3%)	0.97	0.84	N/S
Knees	12 (29.3%)	0.87	0.69	N/S	0 (0%)	1.00	*	*	3 (7.7%)	0.95	0.64	N/S
Ankles/feet	17 (44.7%)	0.89	0.78	N/S	2 (5.3%)	0.97	0.65	N/S	7 (18.4%)	0.97	0.91	N/S
Questionnaire
Po	0.92				0.99				0.96

*McNemar’s statistic and Cohen kappa statistic could not be calculated because none of the adolescent presented elbow or knee problems having caused school or work absence.

ISSN: 1471-2431