Table 3.

Death within 30 days from start of palliative radiotherapy: online calculator prediction versus observed results

Predicted risk, percent	Observed results, percenta	Observed results, n
8	0	0/19
12	5	2/43
14	5	3/66
22	9	7/80
37	29	15/52
39	37	10/27

^ap < 0.001 (chi-square test)