Table 3.
Potential impact fraction of diastolic blood pressure to stroke by different scenarios.
| Diastolic blood pressure (mmHg) | Current (factual) prevalence (%) | Hazard ratio | Counterfactual prevalence (%) | PIF (%) | ||||
|---|---|---|---|---|---|---|---|---|
| 1st feasible minimum risk (scenario1) | 2st feasible minimum risk (scenario2) | Theoretical minimum risk (scenario3) | 1st feasible minimum risk (scenario1) | 1st feasible minimum risk (scenario2) | Theoretical minimum risk (scenario3) | |||
| <62 | 6 (3, 9) | 1 (Reference) | 6 (3, 9) | 6 (3, 9) | 47 (41, 52) | 4.87 | 9.38 | 35.68 |
| 62–69 | 10 (7, 13) | 1.03 (0.75, 1.42) | 10 (7, 13) | 10 (7, 13) | 15 (10, 19) | |||
| 69–75 | 15 (11, 19) | 1.2 (0.87, 1.66) | 15 (11, 19) | 24 (19, 29) | 16 (12, 20) | |||
| 75–82 | 22 (17, 28) | 1.4 (1.01, 1.94) | 37 (32, 43) | 41 (35, 46) | 22 (17, 27) | |||
| >82 | 47 (41, 53) | 2.1 (1.54, 2.88) | 31 (26, 37) | 19 (14, 23) | 0 | |||
a
At the first scenario, minimum risk for hypertension was considered as 5-mmHg hypothetical intervention on systolic blood pressure above 140 mmHg and diastolic blood pressure above 82 mmHg. The corresponding values for the second and third scenarios were 10-mmHg hypothetical interventions and zero prevalence, respectively.