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Table 2 Parameters for NTCP calculation

From: Intensity modulated radiotherapy in early stage Hodgkin lymphoma patients: Is it better than three dimensional conformal radiotherapy?

Organ Size Factor (n) Slope (m) TD5/5 TD50/5 End Point
Lung 0.87 0.18   24.5 Pneumonities
Heart 0.35 0.10 40   Pericardities
Spinal cord 0.05 0.175 47   Myelities/necrosis
Thyroid 0.22 0.26 45   Thyroidities
Oesophagus 0.06 0.11 55   Clinical stricture/perforation
Breast 0.78 0.27   62.5 Fibrosis
  1. Abbreviations: TD5/5 = tolerance doses leading to 5% complication rates at 5 years, TD50/5 = tolerance doses leading to 50% complication rates at 5 years.