Table 8.
Thresholds for measurement of blood pressure for diagnosis of hypertension in clinic and home measurements
| Test threshold* | Sensitivity | Specificity | |||
|---|---|---|---|---|---|
| % (95% CI) | Relative (95% CI) | % (95% CI) | Relative (95% CI) | ||
| Clinic blood pressure test | |||||
| 140/90 (n=7) | 74.7 (61.7 to 84.4) | 1.0 (reference) | 74.8 (49.8 to 89.8) | 1.0 (reference) | |
| 150/90 (n=1) | 66.3 (28.3 to 90.8) | 0.89 (0.51 to 1.55), P=0.68 | 86.2 (24.8 to 99.2) | 1.15 (0.71 to 1.88), P=0.57 | |
| Home blood pressure test | |||||
| 140/90 (n=1) | 52.6 (34.7 to 69.8) | 0.63 (0.45 to 0.88), P=0.01 | 80.3 (67.9 to 88.7) | 1.42 (1.20 to 1.68), P<0.001 | |
| 135/85 (n=3) | 83.2 (76.1 to 88.5) | 1.0 (reference) | 56.7 (46.4 to 66.4) | 1.0 (reference) | |
| 130/80 (n=1) | 91.8 (84.4 to 95.8) | 1.10 (1.03 to 1.18), P=0.01 | 41.4 (30.1 to 53.5) | 0.73 (0.57 to 0.93), P=0.01 | |
*n= number of studies.