Table 4.

Effect of gender on the detection frequencies of three bacterial phyla

Subjects	Gender	Bacterial detection frequencies (%)
		Firmicutes	P value	Bacteroidetes	P value	Proteobacteria	P value
CD patients	Female	53.9	0.66	26.6	0.61	6.8	0.47
	Male	60.2		20.1		13.5
Controls	Female	80.2	0.95	13.5	0.45	0.47	0.085
	Male	79.9		9.6		2.3