. Author manuscript; available in PMC: 2012 Sep 1.

Published in final edited form as: J Rheumatol. 2011 Jul 1;38(9):1960–1965. doi: 10.3899/jrheum.100985

Table 2.

Association of serum matrix Gla protein (MGP) concentration with radiographic hand osteoarthritis (OA).

Serum MGP Quartiles (^* Adjusted Mean Serum MGP, ng/ml ± SE)	Crude Prevalence^† of Radiographic Hand OA (%)	Adjusted OR^*^† (95% CI)
Lowest quartile
129.8 ± 20.5	10.68	1.0 (ref)
Second quartile
174.2 ± 11.8	15.66	1.40 (0.94–2.06)
Third quartile
214.9 ± 10.0	13.60	1.21 (0.80–1.81)
Highest quartile
281.0 ± 45.8	17.10	1.21 (0.79–1.85)

Adjusted for age, sex, body mass index, education, smoking status, physical activity, plasma phylloquinone, and 25-(OH) vitamin D.

^†

The crude and adjusted OR for hand OA across quartiles of serum MGP concentration, among older men and women.