No snoring | With snoring | No nGOR | With nGOR | |
Between ECRHS I and III (∼20 years) | ||||
Change in pre-bronchodilator FEV1 % pred | −4.66±10.26 | −6.22±10.54 | −4.86±10.29 | −6.08±11.00 |
Change in pre-bronchodilator FEV1 mL·year−1 | −34.78±18.31 | −38.29±19.06 | −35.30±18.35 | −36.89±20.22 |
Change in pre-bronchodilator FVC % pred | −0.91±9.54 | −2.57±9.39 | −1.15±9.51 | −2.04±9.80 |
Change in pre-bronchodilator FVC mL·year−1 | −26.41±21.74 | −31.00±21.68 | −27.09±21.70 | −29.93±22.93 |
Between ECRHS II and III (∼10 years) | ||||
Change in pre-bronchodilator FEV1 % pred | −4.53±8.55 | −6.34±9.05 | −4.78±8.68 | −5.43±8.40 |
Change in pre-bronchodilator FEV1 mL·year−1 | −41.99±25.59 | −47.75±27.61 | −42.82±25.90 | −44.41±26.62 |
Change in pre-bronchodilator FVC % pred | −0.94±8.82 | −2.82±8.91 | −1.2±8.88 | −1.69±8.97 |
Change in pre-bronchodilator FVC mL·year−1 | −32.16±33.07 | −39.15±33.65 | −33.14±33.36 | −35.43±32.84 |
Data are presented as mean±sd. ECRHS: European Community Respiratory Health Survey; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity.