Table 1.

Organ-specific parameters of the linear-exponential and linear-plateau risk models at low (10 Sv) and high (40 Sv) equivalent dose inflection points.

		Bladder		Colon/rectum
Risk model	Roll-off dose (Sv)	${\left(\frac{ERR}{H}\right)}_{\mathrm{T}}^0$	αT	${\left(\frac{ERR}{H}\right)}_{\mathrm{T}}^0$	δT
Linear	n/a	0.45	–	0.56	–
Linear-exponential	10	0.49	0.090	0.61	0.090
Linear-exponential	40	0.46	0.025	0.57	0.025
Linear-plateau	10	0.51	0.25	0.65	0.25
Linear-plateau	40	0.47	0.068	0.58	0.068