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Table 5 Sensitivity analyses for standardisation with matched analysis (Systolic BP)

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

  Matching criterion for Systolic BP Adjustment to surgery Systolic BP readingsa N Systolic BP
Mean difference 95% confidence interval P-value
1 Nearest SBP with end digit 0 or 5 0 212 7.11 5.03 to 9.19 < 0.001
2 Nearest SBP with end digit 0 or 5 −7 201 4.01 1.47 to 6.56 0.002
3 Nearest SBP with end digit 0 or 5 −10 211 1.83 −0.55 to 4.21 0.131
4 Exact SBP matching 0 119 5.70 2.78 to 8.61 < 0.001
5 Exact SBP matching −5 120 5.67 2.24 to 9.09 0.001
6 Exact SBP matching −7 128 2.25 −0.67 to 5.17 0.130
7 Exact SBP matching −10 123 2.23 −0.74 to 5.19 0.140
8 Nearest SBP with end digit 0 −5 208 3.90 1.39 to 6.42 0.003
9 Nearest SBP with end digit 0 −7 209 2.90 0.53 to 5.28 0.017
  1. aAdjustment was applied to matching values as well as final values