Table 3.
Differences between mean second and third blood pressure readings and other measurements (first time blood pressure reading, second time blood pressure reading, mean first and second blood pressure readings, and mean first, second, and third blood pressure readings)
| Readings | Differences 0-5 mmHg, n (%) | Differences≥5 mmHg, n (%) | Differences (mmHg), mean±SD |
|---|---|---|---|
| SBP | |||
| BP1 | 1214 (53.6) | 1050 (46.4) | 3.47±7.4 |
| BP2 | 1998 (88.3) | 266 (11.7) | 0.59±3.5 |
| BP1,2 | 1765 (78) | 499 (22) | 2.03±4.2 |
| BP1,2,3 | 2132 (94.2) | 132 (5.8) | 1.15±2.4 |
| DBP | |||
| BP1 | 1727 (76.3) | 537 (23.7) | 1.00±5.2 |
| BP2 | 2162 (95.5) | 102 (4.5) | 0.03±2.4 |
| BP1,2 | 2110 (93.2) | 154 (6.8) | 0.51±3 |
| BP1,2,3 | 2223 (98.2) | 41 (1.8) | 0.33±1.7 |
SBP=Systolic blood pressure; DBP=Diastolic blood pressure; BP1=First time blood pressure reading; BP2=Second time blood pressure reading; BP1,2=Mean first and second blood pressure readings; BP2,3=Mean second and third blood pressure readings; BP1,2,3=Mean first, second, and third blood pressure readings; SD=Standard deviation