Table 3.

Association between a 1-SD decrease in baseline hip shape modes and incident 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	1.24 (0.84, 1.84)	0.85 (0.56, 1.30)	0.94 (0.63, 1.38)	0.98 (0.67, 1.42)
2	16.0	0.97 (0.68, 1.39)	1.17 (0.81, 1.69)	1.24 (0.84, 1.83)	0.98 (0.70, 1.38)
3	12.5	1.05 (0.76, 1.45)	1.08 (0.78, 1.48)	1.04 (0.74, 1.48)	1.12 (0.83, 1.51)
4	9.9	0.95 (0.68, 1.32)	0.99 (0.67, 1.47)	1.03 (0.71, 1.52)	0.93 (0.67, 1.31)
5	5.1	1.27 (0.86, 1.88)	0.98 (0.66, 1.46)	0.97 (0.66, 1.44)	0.91 (0.63, 1.31)
6	3.4	0.95 (0.68, 1.33)	1.26 (0.86, 1.84)	1.13 (0.83, 1.52)	0.90 (0.62, 1.32)
7	2.6	1.05 (0.76, 1.45)	0.96 (0.64, 1.45)	1.38 (0.97, 1.97)	0.95 (0.68, 1.34)
8	2.3	0.99 (0.72, 1.36)	1.07 (0.71, 1.61)	1.39 (0.96, 2.01)	0.96 (0.67, 1.37)
9	1.7	1.34 (0.97, 1.87)	1.25 (0.80, 1.94)	1.00 (0.66, 1.51)	1.30 (0.90, 1.86)
10	1.3	1.27 (0.91, 1.78)	0.82 (0.55, 1.22)	1.01 (0.72, 1.41)	1.05 (0.71, 1.56)
11	1.1	0.82 (0.58, 1.16)	0.86 (0.60, 1.22)	0.74 (0.51, 1.07)	0.88 (0.61, 1.27)
12	0.9	0.81 (0.59, 1.10)	0.88 (0.61, 1.29)	0.81 (0.60, 1.08)	0.83 (0.60, 1.15)
13	0.7	0.97 (0.70, 1.33)	0.91 (0.62, 1.32)	1.26 (0.89, 1.79)	1.02 (0.71, 1.45)
14	0.6	1.10 (0.83, 1.46)	1.23 (0.88, 1.71)	1.24 (0.89, 1.73)	1.06 (0.78, 1.44)

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