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Table 2 Changes in blood pressure from baseline to follow-up.

From: Progress report on the first sub-Saharan Africa trial of newer versus older antihypertensive drugs in native black patients

Follow-up visit

Baseline

Follow-up

Decrease (95% confidence interval )

2 weeks (n = 122)

   

Systolic pressure, mm Hg

154.4 ± 10.9

136.3 ± 14.2

18.2 (20.6 to 15.7)

Diastolic pressure, mm Hg

91.4 ± 10.3

81.3 ± 10.4

10.1 (11.8 to 8.4)

4 weeks (n = 109)

   

Systolic pressure, mm Hg

154.7 ± 10.9

135.3 ± 13.6

19.4 (22.1 to 16.7)

Diastolic pressure, mm Hg

91.8 ± 10.2

80.6 ± 9.3

11.2 (13.0 to 9.5)

8 weeks (n = 57)

   

Systolic pressure, mm Hg

153.5 ± 10.3

131.1 ± 11.8

22.4 (26.0 to 18.7)

Diastolic pressure, mm Hg

90.0 ± 9.3

77.8 ± 9.0

12.2 (14.7 to 9.6)

12 weeks (n = 49)

   

Systolic pressure, mm Hg

156.9 ± 11.0

131.1 ± 14.3

25.8 (30.1 to 21.5)

Diastolic pressure, mm Hg

93.9 ± 9.1

78.7 ± 11.4

15.2 (18.1 to 12.2)

Last visit (n = 129)a

   

Systolic pressure, mm Hg

154.4 ± 10.9

132.3 ± 14.4

22.1 (24.7 to 19.5)

Diastolic pressure, mm Hg

91.4 ± 10.1

79.0 ± 10.0

12.4 (14.2 to 10.7)

  1. All changes in blood pressure were significant (P < 0.001).aSeven patients did not have a two-week visit. n, number.