. Author manuscript; available in PMC: 2015 Jun 1.

Published in final edited form as: Arthritis Care Res (Hoboken). 2014 Jun;66(6):802–809. doi: 10.1002/acr.22297

Table 3.

Association of milk intake with rate of OA progression measured by the decrease of joint space narrowing score (JSN, OARSI grades 0-3)

glasses / week	Men			Women
glasses / week	N	HR (95% CI)^*	P trend	N	HR (95% CI)^*	P trend
None	133	Referent		238	Referent
≤3	342	0.77(0.53,1.13)		473	0.67(0.50,0.91)
4-6	173	0.92(0.60,1.40)		246	0.71(0.50,1.00)
≥7	240	0.61(0.39,0.94)	0.075	303	0.56(0.38,0.81)	0.008

Hazard ratio and 95% confident interval, adjusted for age, race, education, marital status, household income, smoking, physical activity, employment, body mass index, depression, NSAIDs use, knee injury and knee surgery, baseline K-L grade, other dairy products (yogurt, cheese), and other dietary factors intake (total calories, fat, grain, vegetable and fruit, meat, fish, soft drink, dietary and supplement vitamin A, C, D, E).