Table 1.
Baseline characteristics of study participants (N=323,426)
| Characteristic | N (%)a
|
|
|---|---|---|
| Non-Statin User N = 195,977 |
Statin User N = 127,449 |
|
| Age, years | ||
| 65–69 | 70,759 (36.1) | 38,261 (30.0) |
| 70–74 | 58,800 (30.0) | 45,647 (35.8) |
| 75–79 | 40,785 (20.8) | 29,791 (23.4) |
| 80–84 | 20,203 (10.3) | 11,714 (9.2) |
| 85+ | 5,430 (2.8) | 2,036 (1.6) |
|
| ||
| Race | ||
| White | 171,991 (87.8) | 117,013 (91.8) |
| Black | 16,863 (8.6) | 7,326 (5.7) |
| Hispanic | 4,046 (2.1) | 1,609 (1.3) |
| Other | 2,515 (1.3) | 1,236 (1.0) |
| Unknown | 562 (0.3) | 265 (0.2) |
|
| ||
| Charlson Scoreb | ||
| 0 (best health) | 127,608 (65.1) | 74,799 (58.7) |
| 1–2 (average health) | 51,230 (26.1) | 38,874 (30.5) |
| ≥ 3 (worst health) | 17,139 (8.8) | 13,776 (10.8) |
|
| ||
| Marriedc | ||
| Yes | 135,253 (69.4) | 95,840 (75.5) |
| No | 59,541 (30.6) | 31,041 (24.5) |
| Lived in ZCTA in which ≥ 25% of adults had a college educationd | ||
| Yes | 51,790 (27.3) | 35,177 (28.4) |
| No | 137,890 (72.7) | 88,779 (71.6) |
|
| ||
| ZCTA Median Income in Tertiles | ||
| Highest tertile (>=$41,128) | 60,882 (32.1) | 42,665 (34.4) |
| Middle tertile ($32,382–$41,128) | 63,467 (33.5) | 43,187 (34.8) |
| Lowest tertile (<$32,382) | 65,313 (34.4) | 38,101 (30.7) |
|
| ||
| LDL Cholesterol Levels | ||
| >130 | 42,186 (21.5) | 12,239 (9.6) |
| >100–130 | 55,326 (28.2) | 32,871 (25.8) |
| 70–100 | 42,580 (21.7) | 47,449 (37.2) |
| <70 | 13,606 (6.9) | 15,547 (12.2) |
| No cholesterol test available | 42,279 (21.6) | 19,343 (15.2) |
All P-values are <0.0001.
The percent values are presented as column percents.
Charlson-Deyo comorbidity scores were calculated from VA and Medicare inpatient and outpatient claims during the 12 months before the index PSA date. Men were categorized as being in best health if they had a Charlson score of 0, average health if they had a Charlson score of 1–2, and worst health if they had a Charlson score of ≥3.
Marital status is abstracted from the Veterans Affairs National Patient Care Database. Data were missing for 0.5% of men in the cohort.
ZCTA=Zip Code Tabulation Area. Through linkage to the 2000 US Census, we determined the percentage of adults with a college degree who lived with a veteran’s ZCTA and the median income for adults aged 65 years and older who lived within that ZCTA. Education and Income data, 3.0% and 3.0% respectively, were missing for men in the cohort.