Table 4

Change from baseline in outcome measures

	End of intervention					Two months after intervention
	n	Yoga	Control	Difference* (95% CI)	p value	n	Yoga	Control	Difference* (95% CI)	p value
AQLQ = asthma related quality of life questionnaire; FEV₁ = forced expiratory volume in 1 second; FVC = forced vital capacity; PD₂₀FEV₁ = dose of methacholine provoking a fall in FEV₁ of 20% or more.  *Change in yoga group – change in control group, differences tested by unpaired (two sample) t test.
Combined Asthma Score (max score 12)	46	2.9	2.0	0.9 (−0.9 to 2.7)	0.3	45	2.0	2.5	−0.5 (−2.2 to 1.2)	0.6
AQLQ (Total) (max score 4)	46	1.05	0.65	0.41 (−0.04 to 0.86)	0.07	45	0.88	0.63	0.25 (−0.21 to 0.72)	0.3
PD₂₀FEV₁ (doubling doses)	32	−1.64	−0.18	−1.46 (−2.89 to −0.02)	0.047	26	−1.57	−0.74	−0.84 (−2.37 to 0.70)	0.3
FEV₁ (% predicted)	47	−4.2	0.6	−4.8 (−13.1 to 3.5)	0.3	44	−0.9	−1.9	1.0 (−8.1 to 10.1)	0.8
FEV₁/FVC ratio	47	−0.008	0.003	−0.011 (−0.047 to 0.024)	0.5	44	−0.033	−0.002	−0.031 (−0.085 to 0.023)	0.3
Morning PEF (l/min)	46	1.7	2.4	−0.7 (−18.4 to 17.0)	0.9	46	1.6	−1.4	3.1 (−13.0 to 19.1)	0.7
PEF (low % high)	46	−6.7	−6.5	−0.1 (−6.1 to 5.8)	0.97	45	−4.5	−8.5	4.0 (−3.4 to 11.4)	0.3