Table 4.

Association between a 1-SD decrease in baseline hip shape modes and progressive radiographic knee OA.

Mode	% variance in hip shape explained	Ipsilateral		Contralateral
		Right hip/Right knee aOR* (95% CI)	Left hip/Left knee aOR* (95% CI)	Right hip/Left knee aOR* (95% CI)	Left hip/Right knee aOR* (95% CI)
1	37.4	1.16 (0.88, 1.54)	0.98 (0.74, 1.29)	1.06 (0.80, 1.41)	1.07 (0.81, 1.42)
2	16.0	0.98 (0.76, 1.26)	1.06 (0.81, 1.39)	1.07 (0.82, 1.39)	0.99 (0.76, 1.28)
3	12.5	0.96 (0.75, 1.23)	0.92 (0.72, 1.19)	0.97 (0.76, 1.24)	0.88 (0.68, 1.13)
4	9.9	1.11 (0.83, 1.48)	1.03 (0.79, 1.35)	0.95 (0.70, 1.29)	1.02 (0.78, 1.33)
5	5.1	1.16 (0.89, 1.51)	0.93 (0.71, 1.22)	1.02 (0.79, 1.33)	1.13 (0.88, 1.45)
6	3.4	0.98 (0.76, 1.26)	0.95 (0.73, 1.25)	0.91 (0.71, 1.17)	1.00 (0.77, 1.30)
7	2.6	0.96 (0.75, 1.23)	1.07 (0.82, 1.41)	1.03 (0.80, 1.33)	1.08 (0.83, 1.40)
8	2.3	0.86 (0.68, 1.09)	0.88 (0.68, 1.15)	0.91 (0.71, 1.16)	0.94 (0.73, 1.20)
9	1.7	1.28 (0.98, 1.67)	1.01 (0.77, 1.34)	1.06 (0.80, 1.40)	1.07 (0.81, 1.42)
10	1.3	0.93 (0.74, 1.19)	1.01 (0.77, 1.32)	1.02 (0.80, 1.32)	0.94 (0.73, 1.23)
11	1.1	0.80 (0.61, 1.05)	1.01 (0.78, 1.30)	0.77 (0.59, 1.02)	0.87 (0.68, 1.12)
12	0.9	0.86 (0.67, 1.09)	0.90 (0.69, 1.16)	0.86 (0.67, 1.10)	0.96 (0.75, 1.22)
13	0.7	0.89 (0.71, 1.12)	0.85 (0.64, 1.13)	1.00 (0.79, 1.26)	0.98 (0.75, 1.27)
14	0.6	1.18 (0.93, 1.49)	0.96 (0.75, 1.23)	1.14 (0.90, 1.45)	1.15 (0.90, 1.47)

^*Adjusted Odds Ratio, adjusted for age, sex, race, BMI, and hip OA ipsilateral to hip mode score