Fig. 5From: The relationship between obstructive sleep apnea and asthma severity and vice versa: a systematic review and meta-analysisA Pooled results; B The subgroup of asthmatic patients with BMI < 27; Forest plot for Meta-analysis of odds ratio of asthma in different severity of OSA. OSA: obstructive sleep apnea; BMI: body mass index; OR: odds ratioBack to article page