Table 3.
Effect of discarding the first day of measurement across all types of study (systolic blood pressure)
| Study (first author; publication date) | Comparator | N | Using all measurements | Omitting measurements from the first day |
|---|---|---|---|---|
| 3 days of home measurement | Correlation with ABPM (95% confidence interval) | |||
| Johansson (2010) | 24-hour ABPM | 464 | 0.88 (0.86–0.90) | 0.89 (0.87–0.91) |
| Stergiou (1998) | Daytime ABPM | 189 | 0.68 (0.60–0.75) | 0.67 (0.58– 0.74) |
| Verberk (2006) | Daytime ABPM | 216 | 0.60 (0.51–0.68) | 0.60 (0.51–0.68) |
| 24-hour ABPM | 216 | 0.66 (0.58–0.73) | 0.69 (0.61–0.75) | |
| 4 days of home measurement | Correlation with ABPM (95% confidence interval) | |||
| Di Monaco (2016) | Daytime ABPM | 310 | 0.59 (0.51–0.65) | 0.57 (0.49–0.64) |
| 24-hour ABPM | 310 | 0.59 (0.51–0.66) | 0.57 (0.49–0.64) | |
| Stergiou (1998) | Daytime ABPM | 189 | 0.70 (0.62–0.77) | 0.69 (0.61–0.76) |
| Verberk (2006) | Daytime ABPM | 216 | 0.62 (0.53–0.70) | 0.62 (0.53–0.70) |
| 24-hour ABPM | 216 | 0.68 (0.60–0.75) | 0.69 (0.61–0.75) | |
| 1 week of home measurementa | Correlation with ABPM (95% confidence interval) | |||
| Johansson (2010) | 24-hour ABPM | 464 | 0.89 (0.87–0.91) | 0.87 (0.85– 0.89) |
| Nunan (2015) | Daytime ABPM | 203 | 0.67 (0.59–0.74) | 0.68 (0.60–0.75) |
| Stergiou (1998) | Daytime ABPM | 189 | 0.71 (0.63–0.77) | 0.71 (0.63–0.77) |
| Verberk (2006) | Daytime ABPM | 216 | 0.65 (0.57–0.72) | 0.65 (0.57–0.72) |
| 24-hour ABPM | 216 | 0.70 (0.62–0.76) | 0.71 (0.64–0.77) | |
| 1 week of home measurementa | Hazard ratio for future CVD (95% confidence interval) | |||
| Niiranen (2011) | Future CVD | 162b | 1.11 (1.06–1.16) | 1.11 (1.06–1.16) |
Abbreviations: ABPM, ambulatory blood pressure measurement; CVD, cardiovascular disease.
a 1 week refers to 7 days of home measurement, except for Stergiou (1998) where home monitoring was only conducted for 6 days.
b162 CVD events.