Table 2.
Agreement between clinic blood pressure and ambulatory blood pressure to classify resistant hypertension
| Clinic BP | p* | Kappa | |||
|---|---|---|---|---|---|
| Non-RH | RH | (95% confidence interval) | |||
| Daytime BP | Non-RH | 19 (10.7 %) | 12 (6.8 %) | 0.53 | |
| RH | 12 (6.8 %) | 134 (75.7 %) | 1 | (0.3658 ~ 0.6956) | |
| Nighttime BP | Non-RH | 11 (6.2 %) | 7 (4.0 %) | 0.37 | |
| RH | 20 (11.3 %) | 139 (78.5 %) | 0.01 | (0.1813 ~ 0.5539) | |
| 24 h BP | Non-RH | 17 (9.6 %) | 8 (10.2 %) | 0.53 | |
| RH | 14 (7.9%) | 138 (78.0%) | 0.2 | (0.3638 ~ 0.7049) | |
BP blood pressure, RH resistant hypertension defined by uncontrolled BP by each criteron or BP control needing four or more antihypertensive medications. *,p for McNemar test