TABLE 1.

Effect of treatment duration on the gut microbiota^a

Covariate	Bacteroidetes		Firmicutes		Total bacterial count
	Coefficient (95% CI)b	P value	Coefficient (95% CI)	P value	Coefficient (95% CI)	P value
Treatment duration
No treatment	0		0		0
<3 mo	−0.7 (−1.3 to −0.2)	0.007	−0.4 (−0.9–0.1)	0.1	−0.5 (−1.1–0.09)	0.1
>3 mo	−1.3 (−2.0 to −0.7)	0.0001	−1.0 (−1.7 to −0.4)	0.002	−1.2 (−2.0 to −0.5)	0.001
Age	0.02 (0.004–0.03)	0.01	0.01 (0.002–0.03)	0.02	0.01 (−0.006–0.02)	0.2
Intercept	6.2 (4.3–8.0)	2.7e−9	5.9 (4.1–7.6)	2.0e−9	6.4 (4.3–8.4)	1.7e−8

^aMultiple regression analyses were performed for each bacterial clade systematically adjusted according to the BMI.

^b95% CI, 95% confidence interval.