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. Author manuscript; available in PMC: 2013 Sep 30.
Published in final edited form as: Am J Gastroenterol. 2010 May 25;105(10):2228–2234. doi: 10.1038/ajg.2010.200

Table 2.

Demographic Profile of subjects

Analysis Sample
(n=1615)		 FC
(n=231)		 IBS-C
(n=201)		 p-value
(FC vs. IBS-C)
Age in years 66 76 61 0.001
Female Gender 68% 70% 78% 0.06
Caucasian Race 86% 88% 89% 0.83
Education (college degree or higher) 38% 43% 35% 0.03
Personal Income (≥ $30,000/year) 54.4% 51.5% 53.7% 0.92