Preliminary Experiment on the Effect of 18% Substitute Salt on Home Blood Pressure Variability in Hypertensives
Table 4
Weekly changes in systolic blood pressure variability.
Week
SD of SBP am
SD of SBP pm
Mean, 95% CI
Mean difference, 95% CI
#
Mean, 95% CI
Mean difference, 95% CI
#
1
8.91 (7.55, 10.28)
−
−
9.86 (8.31, 11.42)
−
−
2
8.19 (6.82, 9.56)
−0.73 (−2.12, 0.67)
0.303
9.62 (7.98, 11.26)
−0.24 (−1.56, 1.08)
0.716
3
8.63 (7.28, 9.98)
−0.28 (−1.65, 1.08)
0.682
8.66 (7.08, 10.24)
−1.21 (−2.42, 0.01)
0.052
4
8.58 (7.33, 9.82)
−0.34 (−1.61, 0.93)
0.596
9.27 (7.47, 11.08)
−0.59 (−2.10, 0.92)
0.439
5
7.90 (6.47, 9.33)
−1.01 (−2.56, 0.43)
0.167
8.09 (6.54, 9.64)
−1.78 (−2.95, −0.59)
0.004
6
7.97 (6.76, 9.19)
−0.94 (−2.18, 0.30)
0.136
8.62 (7.02, 10.22)
−1.24 (−2.50, 0.02)
0.054
7
7.91 (6.61, 7.21)
−1.00 (−2.32, 0.31)
0.133
8.28 (6.76, 9.79)
−1.59 (−2.72, −0.46)
0.007
8
8.25 (6.95, 9.56)
−0.66 (−1.98, 0.65)
0.319
7.83 (6.26, 9.39)
−2.04 (−3.23, −0.84)
0.001
Mean difference compared with the first week. Adjusted for sex, age, smoking, drinking, body mass index, and reduction of antihypertensive drugs in the linear mixed model.
