Figure 1
From: Relationship between tumor size and disease stage in non-small cell lung cancer
Proportions of disease stage according to tumor size. The percentage of N0M0 disease decreased with the increasing of tumor diameter. The proportion of cases with N0M0 was 70.79% for tumor ≤ 20 mm, compared to 58.88% for 21 to 30 mm, 48.03% for 31 to 50 mm, 47.55% for 51 to 70 mm, 33.33% for ≥ 71 mm. The proportions of cases with N0M0 were significantly different between all the successive categories (p < 0.05), except between tumors 31 to 50 mm and 51 to 70 mm (p = 1.00).