The number of involved lobes of different clinical types is shown in Table 3. Common type can involve one, two, three, and four lobes. However, due to less number of cases, there was no significant difference in the first three groups statistically. Common type and severe-critical type can both involve 5 lobes, but severe-critical type had a higher incidence than common type (p = 0.001). For the common type, the involved lobe number of 5 was significantly higher than 1–4 (p = 0.015). Table 3 Comparison of the number of affected lung lobes with clinical classification Number of lobes affected Total (78) Light type (24) Common type (46) Severe-critical type (8) Statistic p value* 0 24 (100%) 24 (100) 0 (0) 0 (0%) – – 1 8 (10.3%) 0 8 (17.4%) 0 (0%) 0.546 0.460b 2 6 (7.7%) 0 6 (13.0%) 0 (0%) 0.225 0.635b 3 5 (6.4%) 0 5 (10.9%) 0 (0%) – 1.000a 4 10 (12.8%) 0 10 (21.7%) 0 (0%) 0.937 0.333b 5 25 (32.1%) 0 17 (37.0%) 8 (100%) – 0.001a More than two lung lobes 40 (51.3%) 0 32 (70.0%) 8 (100%) 1.893 0.169b Bilateral lungs 45 (57.7%) 0 37 (80.4%) 8 (100%) 0.734 0.392b *p value: common type vs severe-critical type aFisher exact test bContinuity correction