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. Author manuscript; available in PMC: 2013 Jul 16.
Published in final edited form as: JAMA Intern Med. 2013 May 27;173(10):866–873. doi: 10.1001/jamainternmed.2013.323

Table 1.

Baseline characteristics of 295,645 men age 65 years and older who underwent PSA screening and the downstream outcomes that occurred during the 5 years following PSA screening.

BASELINE CHARACTERISTIC* DOWNSTREAM CONSEQUENCES
Men with Index PSA Result > 4.0 ng/ml Men who Received Prostate Biopsy Men Diagnosed with Prostate Cancer Men Treated for Prostate Cancer Men Treated and Alive at 5 Years
All Patients N N (%) N (% of men with index PSA > 4.0 ng/ml) N (% of men who received prostate biopsy) N (% of men diagnosed with prostate cancer) N (% of men treated for prostate cancer)

Age, years
    65-69 97,251 5,731 (5.9) 2,892 (50.5) 1682 (58.2) 1403 (83.4) 1232 (87.8)
    70-74 94,422 7,163 (7.6) 2,869 (40.1) 1808 (63.0) 1499 (82.9) 1278 (85.3)
    75-79 65,501 6,789 (10.4) 1,726 (25.4) 1150 (66.6) 920 (80.0) 718 (78.0)
    80-84 30,902 4,212 (13.6) 695 (16.5) 487 (70.1) 390 (80.1) 258 (66.2)
    85+ 7,569 1,313 (17.3) 131 (10.0) 93 (71.0) 72 (77.4) 37 (51.4)

Charlson Comorbidity Score
    0 184,504 16,533 (9.0) 6037 (36.5) 3812 (63.1) 3158 (82.8) 2655 (84.1)
    1-2 82,808 6,482 (7.8) 1841 (28.4) 1146 (62.3) 920 (80.3) 730 (79.4)
    3+ 28,333 2,193 (7.7) 435 (19.8) 262 (60.2) 206 (78.6) 138 (67.0)

Race
    White 264,978 21,304 (8.0) 6951 (32.6) 4315 (62.1) 3534 (81.9) 2916 (82.5)
    Black 21,706 2,979 (13.7) 1101 (37.0) 750 (68.1) 623 (83.1) 508 (81.5)
    Other 8,961 925 (10.3) 261 (28.2) 155 (59.4) 127 (81.9) 99 (78.0)

Married 208,827 16,611 (8.0) 5741 (34.6) 3574 (62.3) 2954 (82.7) 2495 (84.5)
Not Married 86,818 8,406 (9.9) 2512 (29.9) 1604 (63.9) 1295 (80.7) 999 (77.1)

Census region
    Midwest 80,176 7,238 (9.0) 2471 (34.1) 1550 (62.7) 1293 (83.4) 1051 (81.3)
    Northeast 36,348 3,117 (8.6) 983 (31.5) 607 (61.8) 486 (80.1) 408 (84.0)
    South 132,890 10,668 (8.0) 3500 (32.8) 2172 (62.1) 1815 (83.6) 1502 (82.8)
    West 46,231 4,185 (9.1) 1359 (32.5) 891 (65.6) 690 (77.4) 562 (81.5)

Lived in ZCTA in which ≥ 25% of Adults Had a College Education
    Yes 81,339 6,985 (8.6) 2343 (33.5) 1450 (61.9) 1185 (81.7) 1002 (84.6)
    No 214,306 17,433 (8.5) 5707 (32.7) 3598 (63.1) 2960 (82.3) 2407 (81.3)

Median annual income of ZCTA
    Highest tertile(>=$41,144) 95,753 8,118 (8.5) 2678 (33.0) 1662 (62.1) 1356 (81.6) 1134 (83.6)
    Middle tertile 95,372 7,805 (8.2) 2543 (32.6) 1590 (62.5) 1288 (81.0) 1044 (81.2)
    Lowest tertile (<=$32,549) 95,567 8,500 (8.9) 2830 (33.3) 1797 (63.5) 1501 (83.5) 1231 (82.0)

Selected Comorbidities§
    CHF 18,698 1,604 (8.6) 320 (20.0) 206 (64.4) 162 (78.6) 98 (60.5)
    COPD 35,430 3,029 (8.5) 752 (24.8) 455 (60.5) 367 (80.7) 267 (72.8)
    Diabetes 52,433 3,583 (6.8) 984 (27.5) 625 (63.5) 509 (81.4) 399 (78.4)
    Cerebrovascular disease 19,099 1,505 (7.9) 356 (23.7) 214 (60.1) 168 (78.5) 124 (73.8)
    Dementia 1,844 222 (12.0) 18 (8.1) 13 (72.2) 10 (76.9) 6 (60.0)
*

Associations between baseline characteristics and downstream outcomes were significant (P<0.001) for all relationships in bold.

The denominator for each row percent is the number of men in the prior column. For example, among men age 65-69, 50.5% of 5,731 men with a PSA result > 4 ng/ml received a biopsy; 58.2% of 2,892 men who received a biopsy were diagnosed with prostate cancer; 83.4% of 1,682 men diagnosed with prostate cancer received treatment (radical prostatectomy, radiation or hormone therapy); and 87.8% of 1,403 men who were treated survived 5 years after their index screening PSA test.

ZCTA=Zip Code Tabulation Area. The following variables had missing data: Marital Status (1%), Income (3%) and Education (3%).

§

These categories are not mutually exclusive. Reference group for comparisons are men without the specific comorbidity.