Table 8 Summary of the results from the fit of the two normal tissue complication probability models for xerostomia using the bother score. AUC = area under the curve. Response rate is the average of the response rates predicted by the models. OR = Odds ratio. The p value was calculated using the two sample t-test for the patient subgroups above and below the dose threshold (the null hypothesis is that the true mean difference is zero)

From: NTCP modeling and dose–volume correlations for acute xerostomia and dry eye after whole brain radiation