J Clin Med Res

Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access

Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc

Journal website http://www.jocmr.org

Original Article

Volume 2, Number 6, December 2010, pages 256-260

Bilirubin as a Protective Factor for Rheumatoid Arthritis: An NHANES Study of 2003 - 2006 Data

Figures

Figure 1.. Prevalence of serum TBili among the participants.

Figure 2.. Odds ratio of RA in subjects with higher TBili levels in comparison to subjects with lower TBili levels. Note: odds ratio of RA in lower TBilli subjects defined as 1.

Table

**Table 1.** Demographic Characteristics (Age Adjusted Prevalence)
	Serum TBili <11micromols/liter	Serum TBili >11micromoles per liter
Age 20-39	46.46% SE 1.14	53.54 SE 1.14
40-59	44.73% SE 1.16	55.27 SE 1.16
60 and above	40.25% SE 1.54	59.74 SE 1.54
Unmarried	49.16% SE 1.24	50.82 SE 1.24
Married	40.85% SE 1.12	59.14 SE 1.12
Edu < high school	52.31% SE 1.90	47.68 SE 1.90
Edu > high school	42.65% SE 0.97	57.34 SE 0.97
Non smoker	43.02% SE 1.24	56.98 SE 1.24
Smoking	45.79% SE 0.95	54.02 SE 0.95
Black	56.78% SE 1.26	43.22 SE 1.26
Non-black	42.73% SE 0.98	57.27 SE 0.98
Male	30.63% SE 1.02	69.37 SE 1.02
Female	56.28% SE 1.27	43.27 SE 1.27
BMI less than 25	43.24% SE 1.45	56.76 SE 1.45
25-29	39.57% SE 1.43	60.43 SE 1.45
30 and above	50.42% SE 1.28	49.58 SE 1.28
No Rheumatoid arthritis	44.07% SE 0.92	55.93 SE 0.92
Rheumatoid arthritis	51.23% SE 3.62	48.77 SE 3.62