Skip to main content

Table 4 Systolic BP differences in mmHg (baseline – final readings)

From: Examining the effectiveness of telemonitoring with routinely acquired blood pressure data in primary care: challenges in the statistical analysis

Stratification N Mean SD Median IQR Range
None (Overall) 399 [3484] 6.5 [3.5] 15.2 [19.5] 6 [2] −3 to 15 [− 8 to 14] − 37 to 63 [− 87 to 88]
Age < 65 211 [1049] 6.4 [4.5] 14.6 [19.0] 6 [4] − 3 to 16 [− 8 to 15] −28 to 55 [− 65 to 88]
Age 65+ 188 [2435] 6.7 [3.1] 15.8 [19.7] 6.5 [2] −3.5 to 13.5 [−9 to 14] − 37 to 63 [− 87 to 88]
Male 217 [1639] 6.9 [2.7] 15.2 [18.7] 7 [2] −3 to 15 [−9 to 14] − 37 to 63 [− 87 to 88]
Female 182 [1845] 6.1 [4.2] 15.2 [20.1] 5 [3] −3 to 15 [−8 to 15] − 34 to 53 [− 75 to 88]
SIMD < 5 (more deprived) 70 [811] 7.8 [4.1] 13.4 [19.2] 6.5 [3] 0 to 16 [−8 to 16] −25 to 50 [−55 to 88]
SIMD 5+ (more affluent) 329 [2673] 6.3 [3.3] 15.5 [19.5] 6 [2] −3 to 15 [−9 to 14] − 37 to 63 [−87 to 88]
Systolic BP < 135 209 [1365] −1.2 [−7.9] 11.8 [14.9] 0 [−7] − 7 to 7 [− 16 to 2] − 37 to 28 [− 72 to 44]
Systolic BP 135 or above 190 [2119] 15.1 [10.8] 13.9 [18.5] 13 [9] 6 to 23 [0 to 21] −17 to 63 [−87 to 88]
Systolic BP 140 or above 138 [1658] 17.7 [13.6] 14.0 [18.8] 16.5 [12] 9 to 25 [2 to 24] −17 to 63 [−75 to 88]
Systolic BP 145 or above 92 [1132] 20.9 [18.3] 14.0 [18.9] 21 [18] 11 to 27.5 [7 to 29] −17 to 63 [−75 to 88]
Systolic BP 150 or above 62 [894] 23.8 [21.4] 14.8 [18.8] 22.5 [21] 12 to 34 [10 to 32] −10 to 63 [−75 to 88]
  1. Numbers are shown as Telemonitoring [Comparator]