Frequency of lobe involvement Total (78) Light type (24) Common type (46) Severe-critical type (8) Statistic p value*
Right upper lobe 32 (41.0%) 0 (0%) 24 (52.2%) 8 (100%) – 0.016a
Right middle lobe 30 (38.5%) 0 (0%) 22 (47.8%) 8 (100%) – 0.006a
Right lower lobe 48 (61.5%) 0 (0%) 40 (87.0%) 8 (100%) 0.225 0.635b
Left upper lobe 42 (53.8%) 0 (0%) 34 (73.9%) 8 (100%) 1.386 0.239b
Left lower lobe 48 (61.5%) 0 (0%) 40 (87.0%) 8 (100%) 0.225 0.635b