. Author manuscript; available in PMC: 2014 Jun 1.

Published in final edited form as: Arthritis Care Res (Hoboken). 2013 Jun;65(6):936–944. doi: 10.1002/acr.21922

Table 4.

Discrete survival time analysis of relationship between serum leptin values and incident knee osteoarthritis among Michigan Study of Women’s Health Across the Nation (SWAN) participants, baseline to follow-up visit 11, adjusted for age, body mass index residuals, race/ethnicity, and baseline smoking status.

	Odds Ratio	95% Confidence Interval

Leptin^*	1.31	1.21, 1.41
Baseline age	0.86	0.83, 0.88
African American race/ethnicity	1.52	1.00, 2.30
Baseline current vs. not current smoker	0.48	0.29, 0.80

Estimate represents 5 ng/mL change in leptin value.