. Author manuscript; available in PMC: 2009 Oct 6.

Published in final edited form as: Osteoarthritis Cartilage. 2008 Nov 30;17(6):766–771. doi: 10.1016/j.joca.2008.11.015

Table III. Risk for incident knee OA according to homocysteine tertile in women (n = 1587 knees).

	Low tertile	Middle tertile	High tertile	P value for trend
Homocysteine (range μmol/liter)	4.60–8.97	9.00–11.30	11.32–30.79
Total n	562	531	494
Incident OA	53	55	49
Crude OR (95% CI)	1.0 (1.0)	1.0 (0.7–1.7)	0.9 (0.6–1.5)
Adjusted OR (95% CI)^*	1.0 (1.0)	0.8 (0.5–1.4)	0.7 (0.4–1.2)	0.274

For the Adjusted OR, confounding variables were controlled in manner identical to that described in Table II.