Table 2

Comparison of the main lung ultrasound characteristics between the positive COVID-19 pneumonia and the negative COVID-19 pneumonia group


COVID-19+COVID-19−Overall p value
(n=90) (n (%))(n=145) (n (%))
LUS findings:
 Bilateral B-lines76 (84)86 (59)<0.001*
 Small subpleural consolidations55 (61%54 (37)0.001*
 Consolidations23 (26)32 (22)0.649
 Pleural effusion23 (26)32 (22)0.649
 Pleural line irregularities57 (63)61 (42)0.002*
Area:
 AR144 (49)26 (18)<0.001*
 AR235 (39)30 (21)0.004*
 AR349 (54)53 (37)0.011*
 AR462 (69)67 (46)0.001*
 AL541 (46)29 (20)<0.001
 AL632 (36)32 (22)0.035*
 AL734 (38)40 (28)0.136
 AL851 (57)51 (35)0.002*
 PR938 (42)29 (20)0.001*
 PR1069 (78)64 (44)<0.001*
 PL1141 (46)24 (17)<0.001*
 PL1265 (72)63 (43)<0.001*

  • The percentages for each group are shown in round brackets.

  • The asterisk (*) indicates the statistically significant differences.