Table 1.

Patient and tumour characteristics split by treatment status at follow-up

Characteristic		No additional treatment (n = 19,470)		AS/WW to first active treatment (n = 588)		Additional active treatment (n = 1346)		P	Overall (n = 21,404)
		n	%	n	%	n	%		N	%
Stage at diagnosis	I/II	11,179	57.4	408	69.4	602	44.7	< 0.001	12,189	56.9
	III	3989	20.5	25	4.3	339	25.2		4353	20.3
	IV	1627	8.4	40	6.8	269	20.0		1936	9.0
	Unknown	2675	13.7	115	19.6	136	10.1		2926	13.7
Age at first survey*	< 55 years	401	2.1	7	1.2	21	1.6	< 0.001	429	2.0
	55–64 years	3377	17.3	89	15.1	162	12.0		3628	17.0
	65–74 years	9688	49.8	251	42.7	663	49.3		10,602	49.5
	75–84 years	5376	27.6	184	31.3	453	33.7		6013	28.1
	85 + years	626	3.2	57	9.7	47	3.5		730	3.4
Quintile of socio-economic deprivation	1 — least deprived	5510	28.3	149	25.3	364	27.0	0.405	6023	28.1
	2	5248	27.0	151	25.7	380	28.2		5779	27.0
	3	3987	20.5	138	23.5	281	20.9		4406	20.6
	4	2685	13.8	78	13.3	181	13.5		2944	13.8
	5 — most deprived	1598	8.2	58	9.9	115	8.5		1771	8.3
	Unknown	442	2.3	14	2.4	25	1.9		481	2.2

^*Age was unknown for 2 men