Patient characteristics by treatment among 820 PV patients
| . | All (N = 820), n (%) . | Treated* (n = 686), n (%) . | Untreated* (n = 134), n (%) . | P . |
|---|---|---|---|---|
| Age, median (IQR), y | 77.0 (71.0-83.0) | 77.0 (72.0-83.0) | 77.0 (71.0-85.0) | .33 |
| Sex | ||||
| Female | 467 (57.0) | 395 (57.6) | 72 (53.7) | .41 |
| Male | 353 (43.0) | 291 (42.4) | 62 (46.3) | |
| Race | ||||
| White | 748 (91.2) | 630 (91.8) | 118 (88.1) | .16 |
| Nonwhite | 72 (8.8) | 56 (8.2) | 16 (11.9) | |
| Modified Elixhauser score | ||||
| 0 | 326 (39.8) | 282 (41.1) | 44 (32.8) | <.01 |
| 1 | 215 (26.2) | 189 (27.6) | 26 (19.4) | |
| ≥2 | 279 (34.0) | 215 (31.3) | 64 (47.8) | |
| Prior thrombosis | ||||
| No | 712 (86.8) | 595 (86.7) | 117 (87.3) | .86 |
| Yes | 108 (13.2) | 91 (13.3) | 17 (12.7) | |
| Disability | ||||
| No | 716 (87.3) | 610 (88.9) | 106 (79.1) | <.01 |
| Yes | 104 (12.7) | 76 (11.1) | 28 (20.9) | |
| Low-income subsidy | ||||
| No | 606 (74.0) | 510 (74.3) | 96 (71.6) | .51 |
| Yes | 214 (26.0) | 176 (25.7) | 38 (28.4) | |
| Influenza vaccination within 12 mo prior to PV diagnosis | ||||
| No | 357 (43.5) | 292 (41.6) | 65 (48.5) | .20 |
| Yes | 463 (56.5) | 394 (57.4) | 69 (54.5) |
| . | All (N = 820), n (%) . | Treated* (n = 686), n (%) . | Untreated* (n = 134), n (%) . | P . |
|---|---|---|---|---|
| Age, median (IQR), y | 77.0 (71.0-83.0) | 77.0 (72.0-83.0) | 77.0 (71.0-85.0) | .33 |
| Sex | ||||
| Female | 467 (57.0) | 395 (57.6) | 72 (53.7) | .41 |
| Male | 353 (43.0) | 291 (42.4) | 62 (46.3) | |
| Race | ||||
| White | 748 (91.2) | 630 (91.8) | 118 (88.1) | .16 |
| Nonwhite | 72 (8.8) | 56 (8.2) | 16 (11.9) | |
| Modified Elixhauser score | ||||
| 0 | 326 (39.8) | 282 (41.1) | 44 (32.8) | <.01 |
| 1 | 215 (26.2) | 189 (27.6) | 26 (19.4) | |
| ≥2 | 279 (34.0) | 215 (31.3) | 64 (47.8) | |
| Prior thrombosis | ||||
| No | 712 (86.8) | 595 (86.7) | 117 (87.3) | .86 |
| Yes | 108 (13.2) | 91 (13.3) | 17 (12.7) | |
| Disability | ||||
| No | 716 (87.3) | 610 (88.9) | 106 (79.1) | <.01 |
| Yes | 104 (12.7) | 76 (11.1) | 28 (20.9) | |
| Low-income subsidy | ||||
| No | 606 (74.0) | 510 (74.3) | 96 (71.6) | .51 |
| Yes | 214 (26.0) | 176 (25.7) | 38 (28.4) | |
| Influenza vaccination within 12 mo prior to PV diagnosis | ||||
| No | 357 (43.5) | 292 (41.6) | 65 (48.5) | .20 |
| Yes | 463 (56.5) | 394 (57.4) | 69 (54.5) |
Patients who received neither phlebotomy nor hydroxyurea are categorized as “untreated.” All other patients are categorized as “treated.”