Table 2 Radiographic findings in the two groups, according to H1N1 status.
H1N1(+) | H1N1(-) | |
|---|---|---|
Abnormalities on chest radiograph | ||
Local patchy shadowing | 7/33 (21.2%) | 10/27 (37.7%) |
Ground-glass opacities | 2/33 (6%) | 7/27 (25.9%) |
Interstitial abnormality | 1/33 (3%) | 0/27 (0%) |