Table 1.
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.