Skip to main content
. Author manuscript; available in PMC: 2024 Aug 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2024 Mar 10;119(5):1569–1578. doi: 10.1016/j.ijrobp.2024.02.021

Table 4.

Model validation: Estimated versus actual no. of ORN in the test set for K = 6 per PDE status

Cluster no. PDE = 0 PDE = 1
Training risk indices (95% CI) Total no. of patients Estimated no. of ORN (95% CI) Actual no. of ORN Training risk indices (95% CI) Total no. of patients Estimated no. of ORN (95% CI) Actual no. of ORN
1 0.0% 18 0.0 0 0.0% 2 0.0 0
2 4.4% (0.0%, 10.4%) 23 1.0 (0.0, 2.4) 0 0.0% 5 0.0 0
3 2.9% (0.4%, 5.4%) 66 1.9 (0.2, 3.6) 3 10.6% (1.8%, 19.4%) 18 1.9 (0.3, 3.5) 3
4 9.6% (5.8%, 13.4%) 90 8.6 (5.2, 12.0) 8 20.6% (12.8%, 28.4%) 45 9.3 (5.8, 12.8) 10
5 28.6% (17.5%,39.7%) 25 7.1 (4.3, 9.9) 8 36.4% (16.3%,56.5%) 9 3.3 (1.5, 5.1) 2
6 22.6% (14.1%, 31.1%) 54 12.2 (7.6, 16.8) 14 29.3% (17.6%, 41.0%) 24 7.0 (4.2, 9.8) 6

Abbreviations: ORN = osteoradionecrosis; PDE = preradiation dental extraction (0 = no/edentulous, 1 = dental extractions).