Interrater reliability for unilateral and bilateral tests to measure the popliteal angle in children and youth with cerebral palsy

Table 1 Mean value, standard deviation (SD) and range for the unilateral and bilateral popliteal angle tests

GMFCS level (n)	Type of test	Examiner	Mean	SD	Range
I (17)	Unilateral	1	27.35	10.1	10–50
	Unilateral	2	25.59	10.66	10–50
	Bilateral	1	13.53	10.5	0–35
	Bilateral	2	13.38	9.68	0–35
II (31)	Unilateral	1	33.31	10.69	15–65
	Unilateral	2	31.86	9.83	15–50
	Bilateral	1	16.21	9.9	0–35
	Bilateral	2	14.92	10.49	0–35
III (12)	Unilateral	1	33.96	7.65	20–50
	Unilateral	2	32.5	8.66	20–50
	Bilateral	1	17.71	8.36	0–35
	Bilateral	2	17.50	8.26	0–35
IV (10)	Unilateral	1	32.0	10.12	15–55
	Unilateral	2	32.75	11.99	20–60
	Bilateral	1	14.75	7.86	0–25
	Bilateral	2	17.75	15.96	0–60

Popliteal angles of the two examiners presented separately for each level of the Gross Motor Function Classification System (GMFCS)

ISSN: 1471-2474