. Author manuscript; available in PMC: 2010 Oct 1.

Published in final edited form as: Am J Gastroenterol. 2010 Mar 16;105(4):833–841. doi: 10.1038/ajg.2010.116

Table 2. Familial aggregation estimates by specific bowel habit.

	No. of families		% With positive family history of same bowel habit			% Relatives with same bowel habit

	Cases	Controls	Case-family (%)	Control-family (%)	OR (95% CI)	Case-relatives (%)	Control-relatives (%)	OR^a (95% CI)
Diarrhea proband	130	297	16	10	1.65 ^† (0.91–3.00)	7	4	1.80^* (1.01–3.23)

Constipated proband	81	297	33	23	1.72^* (1.00–2.93)	14	9	1.70^* (1.10–2.61)

Alternating proband	220	297	68	59	1.53^* (1.06–2.20)	41	31	1.52^* (1.52–1.92)

CI, confidence interval; OR, odds ratio.

^†

P = 0.10.

P < 0.05.

Accounts for familial relatedness/dependency.