Weight loss v control for obese patients with asthma to improve lung function (% of predicted) at 1 year†

Lung function testsMean change in weight loss groupMean change in control groupDifference (95% CI)
†FVC=forced vital capacity; PEF=peak expiratory flow.
‡Difference is not significant.
PEF (% of predicted)5.6−0.66.2 (−1.4 to 13.7)‡
FEV1 (% of predicted)4.9−2.77.6 (1.5 to 13.8)
FVC (% of predicted)2.0−5.67.6 (3.5 to 11.8)