Table 4.

VQ scintigraphy findings in patients 4 months after COVID-19 (n = 65) and differences between patients who were not hospitalised, hospitalised without ICU and with ICU treatment.

	All (n = 65)	Group I (n = 12)	Group II (n = 38)	Group III (n = 15)	p-Value (between Groups) #
Ventilatory abnormality	52 (80)	7 (58.3)	30 (79.0)	15 (100)	0.019 A
Vascular abnormality	14 (21.5)	2 (16.7)	11 (29.0)	1 (6.7)	0.215
V/Q defects	62 (95.4)	10 (83.3)	38 (100)	14 (93.3)	0.038 B
Subsegmental, total	254	27	153	74
Subsegmental, ratio	4.1	2.7	4.0	5.3
Segmental, total	83	8	51	24
Mismatched Q defects	43 (66.2)	6 (50.0)	26 (68.4)	11 (73.3)	0.424
Subsegmental, total	86	7	53	26
Subsegmental, ratio	2.0	1.2	2.0	2.4
Segmental, total	2	0	2	0
Matched V/Q defects	26 (40.0)	4 (33.3)	15 (39.5)	7 (46.7)	0.831
Subsegmental, total	36	5	18	13
Subsegmental, ratio	1.4	1.3	1.2	1.9
Segmental, total	11	2	3	6
Reverse mismatched V defects	49 (75.4)	7 (58.3)	30 (79.0)	12 (80.0)	0.353
Subsegmental, total	132	15	82	35
Subsegmental, ratio	2.7	2.1	2.7	2.9
Segmental, total	70	6	46	18
Normal V/Q scan	9 (13.9)	3 (25.0)	6 (15.8)	0 (0)	0.126
Follow-up V/Q scan needed	40 (61.5)	4 (33.3)	24 (63.2)	12 (80.0)	0.050 A

V = ventilation; Q = perfusion. Mismatched Q defects = perfusion defects, but normal ventilation in the area. Reverse mismatched V defects = ventilation defects, but normal perfusion in the area. Data are expressed as n (%), total sum of defects or ratio between number of subsegmental defects and number patient with subsegmental defects. # Fisher’s exact test and if significant followed by bivariate comparison with Bonferroni correction for multiple. ^A: Difference between not hospitalised and hospitalised with ICU. ^B: Difference between not hospitalised and hospitalised without ICU.