Skip to main content

Table 3 Characteristics in the two groups

From: Natural history of superficial head and neck squamous cell carcinoma under scheduled follow-up endoscopic observation with narrow band imaging: retrospective cohort study

  Progression Non- Progression
n = 17 n = 3
Age, median (range), years 69 (52–86) 70 (65–75)
Lesion size, median (range), mm 10 (3–20) 15 (8–15)
Macroscopic type, n (%)
 Type 0-IIa 6 (35) 2 (67)
 Type 0-IIb 9 (53) 1 (33)
 Type 0-IIc 1 (6) 0 (0)
 Type 0-IIa + 0-I 1 (60) 0 (0)
Location, n (%)
 Oropharynx 3 (18) 0 (0)
 Hypopharynx 9 (53) 3 (100)
 Larynx 5 (29) 0 (0)