Table 1.

Characteristics of men diagnosed with prostate cancer from the National Prostate Cancer Register of Sweden from 1998 to 2009 (N = 99 879)*

Characteristic	Men receiving imaging (n = 36,414)		Men not receiving imaging (n = 63,465)		P†
	No.	%	No.	%
Age, y					<.001
<55	1056	2.9	1925	3.0
55–59	2722	7.5	4897	7.7
60–64	5531	15.2	9398	14.8
65–69	7436	20.4	10 950	17.3
70–74	7543	20.7	10 782	17.0
75–79	6251	17.2	11 062	17.4
≥80	5875	16.1	14 451	22.8
Charlson Comorbidity Index					<.001
0	24 273	66.7	40 755	64.2
1–2	9768	26.8	18 043	28.4
≥3	2373	6.5	4667	7.4
Risk category					<.001
Low	3264	9.0	21 199	33.4
Intermediate	7112	19.5	16 520	26.0
High	25 411	69.8	22 927	36.1
Missing	627	1.7	2819	4.4
PSA level, ng/mL					<.001
<10	7811	21.5	31 936	50.3
10–20	8120	22.3	13 127	20.7
>20	20 056	55.1	16 430	25.9
Missing	427	1.2	1972	3.1
Median PSA (IQR)					<.001
	23.2	(11.0–75.0)	9.4	(5.8–21.0)
Clinical local stage					<.001
T1	8902	24.4	30 901	48.7
T2	12 213	33.5	19 188	30.2
T3+	14 465	39.7	12 072	19.0
Other/missing	834	2.0	1304	2.1
Gleason score					<.001
2–6	10 567	29.0	34 197	53.9
7	14 064	38.6	18 783	29.6
8–10	11 012	30.2	9034	14.2
Missing	771	2.1	1451	2.3
Region					<.001
North	4336	11.9	5890	9.3
South	6906	19.0	12 101	19.1
Stockholm/Gotland	5961	16.4	11 723	18.5
Southeast	4862	13.4	6623	10.4
Uppsala/Örebro	8379	23.0	12 878	20.3
West	5970	16.4	14 250	22.5
Year of diagnosis					<.001
1998	3505	9.6	2544	4.0
1999	3790	10.4	3245	5.1
2000	3501	9.6	3630	5.7
2001	3304	9.1	4087	6.4
2002	3151	8.7	4398	6.9
2003	3493	9.6	5222	8.2
2004	3337	9.2	6296	9.9
2005	3009	8.3	6580	10.4
2006	2657	7.3	6322	10.0
2007	2231	6.1	6571	10.4
2008	2008	5.5	6770	10.7
2009	2428	6.7	7800	12.3

* IQR = interquartile range; PSA = prostate-specific antigen.

† All P values are from the χ² test, except for median PSA, which is from the Mann–Whitney test. All tests were two-sided.