Table 3.

Distribution of baseline covariates for completed and missing causes of death and for all the patients

	Observed			Missing			χ 2		Total (N=2844)
	cause of death			cause of death
	(n=161)			(n=161)
	No. of			No. of					No. of
	patientsa	%		patientsa	%		P-value		patients	%
Age, years							0.82
≤ 70	102	63		99	61				1931	68
> 70	59	37		62	39				913	32
PSA at diagnosis, ng/ml							0.62
Missing	28	17		14	9				177	6
≤ 10	70	44		72	45				1952	69
> 10	63	39		75	46				715	25
cT stage							0.37
Missing	38	24		21	13				589	21
cT1	58	36		52	32				1430	50
cT2a	15	9		17	11				243	9
cT2b	8	5		13	8				147	5
cT2c	19	12		20	12				212	7
cT3/cT4	23	14		38	24				223	8
cN stage							0.95
Missing	138	86		112	70				1815	64
0	16	10		36	22				978	34
1	7	4		13	8				51	2
cM stage							0.13
Missing	35	22		28	17				386	14
0	87	54		104	65				2355	2355
1	39	24		29	18				103	4
First treatment							0.92
Missing	28	17		20	12				292	10
Surg.	51	32		51	32				1521	53
Radio.	23	14		28	17				467	16
Surv.+HIFU	5	3		4	2				111	5
Horm.+chemo.	54	34		58	36				453	16
Gleason							0.02
Missing	14	9		8	5				78	3
2-6	68	42		50	31				1393	49
7	42	26		66	41				1150	40
8-10	37	23		37	23				223	8
d’Amico generalized							0.26
Missing	27	17		7	4				291	10
Low	27	17		23	14				800	28
Intermediate	35	21		49	30				1136	40
High+Locally adv.	32	20		46	29				483	17
N + + M +	40	25		36	22				134	5
pT stage							0.80
Missing	116	72		117	73				1402	49
pT2a	10	6		11	7				280	10
pT2b	13	8		9	5				314	11
pT2c	14	9		14	9				619	22
pT3/pT4	8	5		10	6				229	8
pN stage							0.69
Missing	130	81		123	77				1911	67
0	25	15		28	17				891	31
1	6	4		10	6				42	2
PSA after treat., ng/ml							0.68
Missing	72	45		55	34				770	27
≤ 0.07	26	16		35	22				1145	40
> 0.07	63	39		71	44				929	33

Surg. surgery, radio. radiotherapy, surv, surveillance, Horm, Hormone therapy, chemo. chemotherapy, inter, intermediate, treat, treatment ^aNumber of deceased patients