Table 3.

Lung function decline between ECRHS II and ECRHS III by OSA risk (MAP index > 0.5)

	Spirometry data (mean ± SD)		p value
	Low OSA risk (n = 3475)	High OSA risk (n = 854)
Between visits 2 and 3
Change in FEV1 (ml/year)	− 41.3 ± 24.3	− 50.8 ± 30.1	< 0.001
Difference in % predicted FEV1*	− 4.50 ± 8.38	− 5.80 ± 9.50	< 0.001
Change in FVC (ml/year)	− 30.5 ± 31.2	− 45.2 ± 36.3	< 0.001
Difference in % predicted FVC*	− 0.70 ± 8.71	− 3.01 ± 9.04	< 0.001
Difference in FEV1/FVC*	− 4.93 ± 4.68	− 4.24 ± 4.66	< 0.001

Statistically significant differences (p < 0.05) indicated by italics

*Difference in percentage points