NPPB and asthma: BMI: body mass index, BNP: brain natriuretic peptide, GINA: global initiative for asthma, FSSG: frequency scale for the symptoms of gerd, ACT: asthma control test, ACQ: asthma control questionnaire, FeNO: fractional exhaled nitric oxide, IgE: imuunoglobulin E, FVC: forced vital capacity, FEV1: forced expiratory volume in one second, MMF: mid-maximal flow rate, CPAP: Continuous positive airway pressure