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 |