Table 2. Numbers free from medical treatment 2 and 5 years after surgery.

Diabetes duration, years	n (%) free from medical treatment at follow-up
	2 years	5 years
<1	2,473 (96.1%)	1,535 (94.2%)
1	899 (86.7%)	553 (83.0%)
2	674 (82.9%)	404 (75.0%)
3	549 (75.6%)	322 (66.1%)
4	437 (74.3%)	252 (62.6%)
5	407 (69.3%)	252 (59.0%)
6–7	469 (58.0%)	223 (43.0%)
8–9	270 (51.5%)	95 (34.5%)
10–12	187 (44.0%)	76 (32.1%)
13–15	61 (34.3%)	29 (33.0%)
16–20	49 (35.8%)	17 (22.1%)
21–25	21 (32.3%)	6 (17.1%)
≥26	3 (10.7%)	1 (7.7%)