Table 3.

30-day mortality following palliative radiotherapy to bone.

Characteristic		Episode 1			Episode 2			All episodes
		n	Deaths within 30 days		n	Deaths within 30 days		n	Deaths within 30 days
			n	%		n	%		n	%
Fraction group	1	3292	558	17.0	1005	123	12.2	4863	744	15.3
	2–4	103	15	14.6	26	1	3.8	145	19	13.1
	5	825	95	11.5	198	22	11.1	1117	125	11.2
	6–9	6	0	0.0	2	0	0.0	9	0	0.0
	⩾10	181	3	1.7	12	0	0.0	200	6	3.0
Primary diagnosis	Breast	821	62	7.6	284	13	4.6	1293	90	7.0
	Colorectal	238	36	15.1	40	8	20.0	285	46	16.1
	Lung	784	197	25.1	153	33	21.6	979	237	24.2
	Prostate	966	64	6.6	419	39	9.3	1664	121	7.3
	Renal	196	25	12.8	51	7	13.7	287	40	13.9
Site of irradiation	Bone	3734	532	14.2	1066	123	11.5	5379	715	13.3
	Multiple bony sites	538	113	21.0	143	18	12.6	779	144	18.5
	Bone and another site	135	29	21.5	34	5	14.7	176	35	19.9
Total		4407	674	15.3	1243	146	11.7	6334	894	14.1