Table. Baseline Characteristics of the Study Participants According to Living Arrangement Status (Living Alone vs Living With Others) and Treatment Assignment (Intensive vs Standard Blood Pressure Control) Among Black and Non-Black Individualsa.
| Variables | Treatment assignment of Black participants, No (%) | Treatment assignment of non-Black participants, No (%)a | ||||||
|---|---|---|---|---|---|---|---|---|
| Living alone (N = 1001) | Living with others (N = 1792) | Living alone (N = 1713) | Living with others (N = 4836) | |||||
| Intensive (N = 493) | Standard (N = 508) | Intensive (N = 881) | Standard (N = 911) | Intensive (N = 860) | Standard (N = 853) | Intensive (N = 2435) | Standard (N = 2401) | |
| Sex | ||||||||
| Female | 255 (51.7) | 257 (50.6) | 372 (42.2) | 382 (41.9) | 414 (48.1) | 389 (45.6) | 636 (26.1) | 615 (25.6) |
| Male | 238 (48.3) | 251 (49.4) | 509 (57.8) | 529 (58.1) | 446 (51.9) | 464 (54.4) | 1799 (73.9) | 1786 (74.4) |
| Age, mean (SD), y | 65.3 (9.1) | 65.4 (9.4) | 63.5 (8.8) | 63.7 (8.7) | 71.7 (9.2) | 71.9 (9.3) | 68.7 (8.9) | 68.5 (9.1) |
| Education status | ||||||||
| Less than college | 384 (77.9) | 386 (76.0) | 683 (77.5) | 678 (74.4) | 469 (54.5) | 470 (55.1) | 1295 (53.2) | 1244 (51.8) |
| College or above | 109 (22.1) | 109 (24.0) | 198 (22.5) | 233 (25.6) | 391 (45.5) | 383 (44.9) | 1140 (46.8) | 1157 (48.2) |
| Insurance | ||||||||
| Private | 83 (16.9) | 97 (19.2) | 245 (27.8) | 226 (24.8) | 128 (14.9) | 114 (13.4) | 583 (24.0) | 603 (25.1) |
| Public | 319 (65.0) | 323 (64.0) | 463 (52.6) | 514 (56.5) | 673 (78.3) | 678 (79.7) | 1685 (69.2) | 1624 (67.7) |
| Uninsured | 89 (18.1) | 85 (16.8) | 172 (19.6) | 170 (18.7) | 59 (6.9) | 59 (6.9) | 166 (6.8) | 173 (7.2) |
| Smoking status | ||||||||
| Never | 205 (42.1) | 216 (43.1) | 396 (45.5) | 402 (44.5) | 379 (44.6) | 394 (46.9) | 1073 (44.5) | 1056 (44.2) |
| Current | 118 (24.2) | 119 (23.8) | 206 (23.7) | 196 (21.7) | 91 (10.7) | 77 (9.2) | 224 (9.3) | 209 (8.8) |
| Former | 164 (33.7) | 166 (33.1) | 268 (30.8) | 305 (33.8) | 379 (44.6) | 370 (44.0) | 1117 (46.3) | 1123 (47.0) |
| Alcohol intake | 271 (55.2) | 297 (58.8) | 475 (54.3) | 500 (55.2) | 592 (69.0) | 573 (69.5) | 1641 (67.6) | 1645 (68.6) |
| Baseline blood pressure, mean (SD), mm Hg | ||||||||
| Systolic | 140.0 (16.7) | 139.4 (16.5) | 139.2 (16.8) | 140.4 (15.4) | 139.9 (15.4) | 141.5 (16.2) | 139.7 (15.3) | 138.8 (14.8) |
| Diastolic | 80.6 (12.8) | 80.4 (12.4) | 81.5 (12.4) | 81.8 (12.2) | 75.6 (11.3) | 76.2 (12.0) | 77.5 (11.4) | 76.8 (11.4) |
| Clinical cardiovascular disease | 50 (10.1) | 57 (11.2) | 85 (9.7) | 87 (9.6) | 139 (16.2) | 143 (16.8) | 465 (19.1) | 433 (18.0) |
| Subclinical cardiovascular disease | 46 (9.3) | 37 (7.3) | 75 (8.5) | 82 (9.0) | 60 (7.0) | 66 (7.7) | 199 (8.2) | 208 (8.7) |
| Statin use | 162 (33.2) | 181 (35.9) | 268 (30.5) | 332 (36.6) | 377 (44.0) | 380 (44.9) | 1171 (48.4) | 1182 (49.6) |
| Aspirin use | 203 (41.2) | 215 (42.4) | 359 (40.9) | 372 (40.9) | 499 (58.1) | 413 (48.5) | 1345 (55.3) | 1348 (56.3) |
| No. of antihypertensive medications | ||||||||
| 0 | 39 (7.9) | 30 (5.9) | 69 (7.8) | 68 (7.5) | 77 (9.0) | 116 (13.6) | 238 (9.8) | 229 (9.5) |
| 1 | 131 (26.6) | 157 (30.9) | 236 (26.8) | 258 (28.3) | 289 (33.6) | 259 (30.4) | 810 (33.3) | 799 (33.3) |
| 2 | 163 (33.1) | 188 (37.0) | 323 (36.7) | 301 (33.0) | 291 (33.8) | 292 (34.2) | 832 (34.2) | 800 (33.3) |
| ≥3 | 160 (32.4) | 133 (26.2) | 253 (28.7) | 284 (31.2) | 203 (23.6) | 186 (21.8) | 555 (22.8) | 573 (23.9) |
| 10-y Framingham cardiovascular disease risk %, median (IQR) | 14.8 (11.3) | 14.7 (12.6) | 14.9 (11.3) | 15.2 (12.3) | 18.0 (15.9) | 19.1 (15.1) | 19.3 (13.4) | 19.1 (13.9) |
a
Non-Black individuals indicate those who identified as Alaskan Native, American Indian, Asian, Native Hawaiian, Pacific Islander, White, or other during the Systolic Blood Pressure Intervention Trial.