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Table 1 Demographic and clinical characteristics

From: Lung perfusion findings on perfusion SPECT/CT imaging in non-hospitalized de-isolated patients diagnosed with mild COVID-19 infection

Characteristics N=56
Age in years, median (IQR) a 48 (41–54)
Sex, n (%)  
 Female 49 (87.5)
 Male 7 (12.5)
a Duration of illness before scan in days, median (IQR) 17 (14–25)
b Study type, n (%)  
 Q SPECT/CT scan 47 (83.9)
 VQ SPECT/CT scan 9 (16.1)
b Follow-up study, n (%)  
 None 42 (75.0)
 VQ SPECT/CT scan 14 (25.0)
Defects, n (%)  
 No 24 (42.9)
 Yes 32 (57.1)
Mosaic attenuation, n (%)  
 No 32 (57.1)
 Yes 24 (42.9)
COVID pneumonia, n (%)  
 No 32 (57.1)
 Yes 24 (42.9)
b Defects from PE, n (%)  
 No 31 (55.4)
 Yes 20 (35.7)
 Non-diagnostic 5 (8.9)
b Defects with mosaic attenuation other than PE, n (%)  
 No 39 (69.6)
 Yes 17 (30.4)
Defects from pulmonary infiltrates, n (%)  
 No 50 (89.3)
 Yes 6 (10.7)
Shunting, n (%)  
 No 46 (82.1)
 Yes 10 (17.9)
  1. aIQR (interquartile range)
  2. bQ SPECT/CT perfusion single photon emission computed tomography/computed tomography, VQ SPECT/CT ventilation and perfusion single photon emission computed tomography/computed tomography, PE pulmonary embolism