Table 2

Risk factors for symptomatic osteoarthritis of the knee in women aged 65 and over—multivariate analysis*

(R)=reference categoryAdjusted odds ratio95% CIp Value
Risk factor
*Matched for age and general practitioner.
BMI when age 36–40: n=104<25(R)
25 or above36.433.07 to 432.750.004
Years regularly bending (tertiles)0–21(R)
>21–3412.911.00 to 167.160.050
>349.800.76 to 126.740.081
Ever worn 3 inch heels regularly0.770.22 to 2.650.673