Table 2.

5-year overall survival by health care center according to thickness.

	5-year OS	CI 95%
Public Hospital	65.6%	57.9%–72.1%
T1	86.7%	74.9%–93.1%
T2	81.5%	63.2%–91.3%
T3	54.9%	38.7%–68.5%
T4	28.5%	14.1%–44.7%
Private health care center	94%	90.2%–96.4%
T1	95.6%	91.4%–97.8%
T2	95.2%	70.7%–99.3%
T3	94.4%	66.6%–99.2%
T4	75%	40.8%–91.2%

CI = confidence interval; OS = overall survival.

Thickness as T1≤ 1 mm, T2 >1.0–2.0 mm, T3 >2.0–4.0 mm and T4 >4.00 mm