Table 4

Change from baseline in outcome measures

End of interventionTwo months after intervention
nYogaControlDifference* (95% CI)p valuenYogaControlDifference* (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)462.92.00.9 (−0.9 to 2.7)0.3452.02.5−0.5 (−2.2 to 1.2)0.6
AQLQ (Total) (max score 4)461.050.650.41 (−0.04 to 0.86)0.07450.880.630.25 (−0.21 to 0.72)0.3
PD20FEV1 (doubling doses)32−1.64−0.18−1.46 (−2.89 to −0.02)0.04726−1.57−0.74−0.84 (−2.37 to 0.70)0.3
FEV1 (% predicted)47−4.20.6−4.8 (−13.1 to 3.5)0.344−0.9−1.91.0 (−8.1 to 10.1)0.8
FEV1/FVC ratio47−0.0080.003−0.011 (−0.047 to 0.024)0.544−0.033−0.002−0.031 (−0.085 to 0.023)0.3
Morning PEF (l/min)461.72.4−0.7 (−18.4 to 17.0)0.9461.6−1.43.1 (−13.0 to 19.1)0.7
PEF (low % high)46−6.7−6.5−0.1 (−6.1 to 5.8)0.9745−4.5−8.54.0 (−3.4 to 11.4)0.3