Table 2.

Comparison of pulmonary function items in 2006 and 2018 in SARS patients with or without a pulmonary CT abnormity after recovery in 2003

Characteristics	Abnormal CT (n = 13)			Normal CT (n = 22)			t	P
	2006	2018	2018–2006	2006	2018	2018–2006
FVC/L	3.57 ± 1.02	3.36 ± 0.98	−0.20 ± 0.34	3.59 ± 0.67	3.43 ± 0.52	−0.15 ± 0.36	0.38	0.703 0
FVC of predicted/%	102.05 ± 19.57	104.54 ± 16.06	2.49 ± 11.16	97.31 ± 14.00	102.53 ± 14.27	5.22 ± 9.29	0.78	0.441 8
FEV1/L	2.98 ± 0.79	2.69 ± 0.74	−0.29 ± 0.27	3.05 ± 0.57	2.86 ± 0.45	−0.20 ± 0.30	0.93	0.357 8
FEV1 of predicted/%	101.37 ± 17.85	99.75 ± 16.92	−1.62 ± 8.10	96.18 ± 13.06	100.23 ± 13.41	4.05 ± 8.56	1.93	0.062 1
(FEV1/FVC)/%	84.36 ± 6.07	79.32 ± 5.27	−5.04 ± 4.04	85.25 ± 6.31	83.26 ± 4.34	−2.00 ± 4.13	2.12	0.041 4
FEF25%−75%	86.49 ± 19.50	71.16 ± 20.39	−15.33 ± 16.49	84.62 ± 22.98	83.88 ± 23.19	−0.75 ± 14.27	2.76	0.009 4
DLCO/(mmol·min−1 per kPa)	7.85 ± 2.07	7.39 ± 1.92	−0.46 ± 1.27	7.67 ± 1.51	7.18 ± 1.35	−0.49 ± 1.10	−0.07	0.942 4
DLCOc of predicted/%	87.81 ± 11.25	88.22 ± 12.67	0.40 ± 13.85	81.65 ± 9.02	81.99 ± 11.82	0.35 ± 11.17	−0.01	0.988 5
DLCO/VA of predicted/%	98.70 ± 10.05	99.00 ± 15.45	0.30 ± 11.63	92.45 ± 12.10	88.53 ± 16.32	−3.92 ± 10.80	−1.09	0.285 2
TLC/L	5.22 ± 1.32	5.49 ± 1.22	0.27 ± 0.64	5.24 ± 0.69	5.34 ± 0.59	0.10 ± 0.67	−0.73	0.471 0
TLC of predicted/%	97.62 ± 16.56	103.12 ± 11.28	5.51 ± 13.87	98.68 ± 10.07	102.22 ± 10.41	3.54 ± 11.92	−0.45	0.659 2
(RV/TLC)/%	35.26 ± 8.69	39.15 ± 7.38	3.89 ± 8.35	32.85 ± 7.07	38.24 ± 5.60	5.39 ± 6.61	0.59	0.560 9
RV/TLC of predicted/%	106.75 ± 19.57	106.43 ± 14.27	−0.32 ± 25.13	109.66 ± 18.83	113.90 ± 17.00	4.24 ± 21.07	0.58	0.569 1