Table 5.

Pairwise comparison of estimated marginal means at beginning and end of treatment.

Contrast			Estimate (SE)	t test (df)	P value
Week 0 (baseline)
	1 day per week
		2 days per week	−1.15×10−3 (2.22×10−3)	−0.52 (infinity)	.99
		3 days per week	−8.00×10−3 (2.53×10−3)	−3.16 (infinity)	.01a
		4 days per week	−8.30×10−3 (2.85×10−3)	−2.91 (infinity)	.03
		5 days per week	−1.13×10−2 (2.86×10−3)	−3.95 (infinity)	.001
	2 days per week
		3 days per week	−6.85×10−3 (2.20×10−3)	−3.12 (infinity)	.02
		4 days per week	−7.15×10−3 (2.60×10−3)	−2.75 (infinity)	.047
		5 days per week	−1.01×10−2 (2.63×10−3)	−3.86 (infinity)	.001
	3 days per week
		4 days per week	−2.95×10−4 (2.61×10−3)	−0.11 (infinity)	.99
		5 days per week	−3.30×10−3 (2.73×10−3)	−1.21 (infinity)	.75
	4 days per week
		5 days per week	−3.00×10−3 (2.85×10−3)	−1.05 (infinity)	.83
Week 9 (end of analysis period)
	1 day per week
		2 days per week	−1.13×10−2 (3.18×10−3)	−3.57 (infinity)	.003
		3 days per week	−3.34×10−2 (3.78×10−3)	−8.84 (infinity)	<.001
		4 days per week	−5.09×10−2 (4.27×10−3)	−11.92 (infinity)	<.001
		5 days per week	−5.65×10−2 (4.63×10−3)	−12.20 (infinity)	<.001
	2 days per week
		3 days per week	−2.21×10−2 (2.85×10−3)	−7.74 (infinity)	<.001
		4 days per week	−3.95×10−2 (3.54×10−3)	−11.16 (infinity)	<.001
		5 days per week	−4.52×10−2 (4.00×10−3)	−11.28 (infinity)	<.001
	3 days per week
		4 days per week	−1.75×10−2 (3.18×10−3)	−5.49 (infinity)	<.001
		5 days per week	−2.31×10−2 (3.84×10−3)	−6.02 (infinity)	<.001
	4 days per week
		5 days per week	−5.65×10−3 (3.67×10−3)	−1.54 (infinity)	.54

^aItalicized text indicates significant contrast, P<.05.