Table 3:
Prevalence of hypertension and high blood pressure calculated using each calibration approach.
| Calibration Approach | High Blood Pressure | Hypertension | ||
|---|---|---|---|---|
| Exam 1 (n=5,285) | Exam 2 (n=4,194) | Exam 1 (n=5,285) | Exam 2 (n=4,194) | |
| Ignoring the Change | 3,184 (60.3%) | 2,213 (52.8%) | 4,023 (76.1%) | 3,362 (80.2%) |
| Ordinary Least Squares | 2,660 (50.3%) | 2,085 (49.7%) | 3,706 (70.1%) | 3,306 (78.8%) |
| Average Difference | 2,848 (53.9%) | 2,148 (51.2%) | 3,807 (72.0%) | 3,330 (79.4%) |
| Deming Regression | 2,848 (53.9%) | 2,148 (51.2%) | 3,807 (72.0%) | 3,330 (79.4%) |
| Robust Regression | 2,660 (50.3%) | 2,085 (49.7%) | 3,706 (70.1%) | 3,306 (78.8%) |
High blood pressure was defined as systolic blood pressure ≥ 130 mm Hg and/or diastolic blood pressure ≥ 80 mm Hg.
Hypertension was defined as systolic blood pressure ≥ 130 mm Hg and/or diastolic blood pressure ≥ 80 mm Hg and/or antihypertensive medication use.
The calibration equations are provided in Table 2.