Choroid and Retinal Nerve Fiber Layer Thickness in Patients with Chronic Obstructive Pulmonary Disease Exacerbation

Table 1

Clinical and demographic characteristics of the COPD and control groups.

	Group A ()	Group B ()	Control ()
Age (y)	64.1 ± 7.3	64.4 ± 8.6	65.8 ± 7.1	0.073^A
FEV1/FVC	63.9 ± 14.8	71.1 ± 13.1	90.2 ± 4.2	0.092^m
FEV1	1.6 ± 0.7	2.0 ± 0.8	2.2 ± 0.5	0.054^m
O2	89.3 ± 8.5	94.2 ± 4.4	98 ± 0.9	0.009^m

Group A: COPD at the exacerbation period; Group B: COPD at the stable period; ^AANOVA; ^mMann–Whitney U test; FEV1: forced expiratory volume; FVC: forced vital capacity; O₂: oxygen saturation; y: year.