Table 1. Descriptive Characteristics of the Study Population.
| Cohort | TwinsUK | 10 001 Dalmatians | KORA | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Timepoint | Baseline | Follow up | Baseline | Follow up | Baseline | Follow up | |||
| Hypertension status | All | Controls | iCases | All | Controls | iCases | All | Controls | iCases |
| N | 2617 | 1628 | 989 | 106 | 89 | 17 | 729 | 562 | 167 |
| Females, N (%) | 2617 (100%) | 1628(100%) | 989(100%) | 72 (68%) | 63(71%) | 9 (53%) | 415 (57%) | 330 (59%) | 85 (51%) |
|
Age / years
Mean (SD) |
54 (12) | 58 (11) | 63 (9) | 57 (11) | 62 (12) | 62 (7) | 58 (8) | 64 (8) | 67 (8) |
|
BMI / kg m-2
Mean (SD) |
25.7 (4.5) | 25.3 (4.4) | 27.4 (5.2) | 27.7 (3.8) | NA | NA | 26.7 (4.0) | 26.7 (4.1) | 28.5 (5.1) |
|
SBP / mmHg,
Mean (SD) |
122 (14) | 119 (11) | 137 (13) | 132 (17) | 127 (10) | 152 (7) | 117 (13) | 114 (13) | 125 (19) |
|
DBP / mmHg
Mean (SD) |
76 (9) | 72 (8) | 81 (10) | 79 (8) | 78 (6) | 85 (10) | 74 (7) | 71 (7) | 75 (11) |
|
MAP / mmHg
Mean (SD) |
91 (10) | 88 (8) | 100 (9) | 97 (10) | 94 (6) | 107 (8) | 88 (9) | 86 (8) | 91 (13) |
Abbreviations: iCases, incident hypertension cases; BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; MAP, mean arterial pressure.