Table 1. Patient Characteristics at Time of Inclusion, Stratified by County and Completeness of Follow-upa.
| Variable | Total | With Follow-up Data | Without Follow-up Data | |||
|---|---|---|---|---|---|---|
| Intervention Group | Control Group | Intervention Group | Control Group | Intervention Group | Control Group | |
| Participants (inclusions in cohorts) | 743 524 (100) | 841 133 (100) | 614 053 (82.6) | 698 229 (83.0) | 129 471 (17.4) | 142 904 (16.9) |
| Unique individuals, No. | 136 541 | 146 538 | 90 787 | 97 900 | 105 597 | 115 209 |
| Median No. of cohorts per unique individual | 3 | 3 | 6 | 6 | 1 | 1 |
| Sex | ||||||
| Female | 423 960 (57.0) | 490 018 (58.3) | 351 237 (57.2) | 408 151 (58.5) | 72 723 (56.2) | 81 867 (57.3) |
| Male | 319 564 (43.0) | 351 115 (41.7) | 262 816 (42.8) | 290 078 (41.5) | 56 748 (43.8) | 61 037 (42.7) |
| Age, mean (SD), y | 64.6 (16.1) | 65.7 (15.9) | 66.9 (14.3) | 68.0 (14.0) | 53.6 (19.6) | 54.8 (19.7) |
| Age group, y | ||||||
| 18-64 | 325 201 (43.7) | 342 552 (40.7) | 235 844 (38.4) | 246 258 (35.3) | 89 357 (69.0) | 96 294 (67.4) |
| 65-79 | 283 623 (38.2) | 327 567 (38.9) | 258 089 (42.0) | 299 621 (42.9) | 25 534 (19.7) | 27 946 (19.6) |
| ≥80 | 134 700 (18.1) | 171 014 (20.3) | 120 120 (19.6) | 152 350 (21.8) | 14 580 (11.3) | 18 664 (13.1) |
| BP, mean (SD), mm Hg | ||||||
| SBP | 142.1 (20.8) | 143.9 (21.4) | 144.3 (20.6) | 146.2 (21.1) | 131.8 (18.4) | 132.3 (18.8) |
| DBP | 81.6 (11.2) | 80.4 (10.8) | 82.2 (11.3) | 80.9 (10.9) | 78.7 (10.3) | 77.7 (9.9) |
| BP categories, mm Hg | ||||||
| <120 | 74 416 (10.0) | 71 817 (8.5) | 47 712 (7.8) | 45 132 (6.5) | 26 704 (20.6) | 26 685 (18.7) |
| 120-129 | 105 676 (14.2) | 106 938 (12.7) | 75 758 (12.3) | 74 547 (10.7) | 29 918 (23.1) | 32 391 (22.7) |
| 130-139 | 137 793 (18.5) | 136 889 (16.3) | 110 387 (18.0) | 109 120 (15.6) | 27 406 (21.2) | 27 769 (19.4) |
| 140-149 | 157 489 (21.2) | 183 885 (21.9) | 134 712 (21.9) | 155 846 (22.3) | 22 777 (17.6) | 28 039 (19.6) |
| 150-159 | 103 715 (14.0) | 124 155 (14.8) | 92 956 (15.1) | 110 833 (15.9) | 10 759 (8.3) | 13 322 (9.3) |
| 160-169 | 80 549 (10.8) | 104 102 (12.4) | 73 851 (12.0) | 95 615 (13.7) | 6698 (5.2) | 8487 (5.9) |
| 170-179 | 39 707 (5.3) | 50 939 (6.1) | 36 989 (6.0) | 47 813 (6.9) | 2718 (2.1) | 3126 (2.2) |
| ≥180 | 44 179 (5.9) | 62 408 (7.4) | 41 688 (6.8) | 59 323 (8.5) | 2491 (1.9) | 3085 (2.2) |
| Comorbidities | ||||||
| Diabetes | 125 738 (16.9) | 165 438 (19.7) | 119 564 (19.5) | 157 831 (22.6) | 6174 (4.8) | 7607 (5.3) |
| Coronary artery disease | 101 247 (13.6) | 89 538 (10.6) | 91 797 (15.0) | 81 064 (11.6) | 9450 (7.3) | 8474 (5.9) |
| Previous stroke | 45 516 (6.1) | 45 455 (5.4) | 40 608 (6.6) | 40 654 (5.8) | 4908 (3.8) | 4801 (3.4) |
| Heart failure | 34 294 (4.6) | 31 352 (3.7) | 30 049 (4.9) | 26 924 (3.9) | 4245 (3.3) | 4428 (3.1) |
| Atrial fibrillation | 48 031 (6.5) | 45 773 (5.4) | 42 972 (7.0) | 40 917 (5.9) | 5059 (3.9) | 4856 (3.4) |
| Disposable income | ||||||
| Quintile 1 | 147 231 (19.8) | 168 994 (20.1) | 120 278 (19.6) | 137 352 (19.7) | 26 953 (20.9) | 31 642 (22.3) |
| Quintile 2 | 146 670 (19.8) | 169 568 (20.2) | 124 485 (20.3) | 145 132 (20.8) | 22 185 (17.2) | 24 436 (17.2) |
| Quintile 3 | 147 909 (19.9) | 168 301 (20.1) | 123 849 (20.2) | 142 315 (20.4) | 24 060 (18.7) | 25 986 (18.3) |
| Quintile 4 | 152 823 (20.6) | 163 403 (19.5) | 125 016 (20.4) | 134 854 (19.4) | 27 807 (21.6) | 28 549 (20.1) |
| Quintile 5 | 147 445 (19.9) | 168 777 (20.1) | 119 600 (19.5) | 137 191 (19.7) | 27 845 (21.6) | 31 586 (22.2) |
| Civil status | ||||||
| Unmarried | 134 047 (18.1) | 115 462 (13.8) | 90 677 (14.8) | 76 071 (10.9) | 43 370 (33.7) | 39 391 (27.7) |
| Married | 383 364 (51.7) | 446 586 (53.2) | 325 464 (53.1) | 379 781 (54.5) | 57 900 (45.0) | 66 805 (47.0) |
| Divorced | 84 331 (11.4) | 116 983 (14.0) | 70 594 (11.5) | 97 077 (13.9) | 13 737 (10.7) | 19 906 (14.0) |
| Widowed | 140 126 (18.9) | 159 740 (19.0) | 126 384 (20.6) | 143 744 (20.6) | 13 742 (10.7) | 15 996 (11.3) |
| Educational levelb | ||||||
| Elementary school | 159 382 (30.3) | 218 097 (38.1) | 136 673 (32.6) | 185 902 (40.6) | 22 709 (21.2) | 32 195 (28.0) |
| Secondary school | 249 503 (47.4) | 251 135 (43.9) | 198 249 (47.2) | 194 836 (42.6) | 51 254 (47.9) | 56 299 (48.9) |
| University degree | 117 790 (22.4) | 103 470 (18.1) | 84 833 (20.2) | 76 823 (16.8) | 32 957 (30.8) | 26 647 (23.1) |
Abbreviations: BP, blood pressure; DBP, diastolic blood pressure; SBP, systolic blood pressure.
a
Values given as number (percentage) unless otherwise indicated.
b
Available only for people younger than 75 years.