Subjects with hip osteoarthritis show distinctive patterns of trunk movements during gait-a body-fixed-sensor based analysis

Table 2 GEE analysis of pelvic and thoracic ROM and ratio of thoracic ROM to pelvic ROM^a

Outcome	Group	Group effect (95% CI)	P value	Group by walking speed effect (95% CI)	P value
Pelvic ROM	HC	0^b		0
	NDL	-1.5 (-2.3, -0.7)	< .001	-2.4 (-3.4, -1.4)	< .001
	DL	-0.6(-1.8, 0.5)	.29	-3.0 (-4.7, -1.2)	.001
Thoracic ROM	HC	0		0
	NDL	1.0 (0.4, 1.7)^†	.002	-1.0 (-1.7, -0.3)^†	.005
	DL	5.0 (3.5, 6.4)	< .001	-4.4 (-6.4, -2.4)	< .001
Ratio	HC	0		0
	NDL	0.5 (0.3, 0.7)^†	< .001	-0.0 (-0.2, 0.1)^†	0.64
	DL	1.0 (0.7, 1.3)	< .001	-0.5 (-0.9, -0.1)	.007

Reference group: healthy control group.
^a Adjusted for walking speed, age, body height and body weight.
^b Set to zero because HC was used as reference group.
^† indicate significant difference between NDL and DL.
Abbreviations: GEE, generalized estimating equation; HC, healthy control group; NDL, patients without a Duchenne limp; DL, patients with a Duchenne limp.
Thoracic and pelvic ROM are expressed in degrees (°).

ISSN: 1743-0003