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Table 3 Pooled outcome measures of the studies with both intervention and control arms

From: Systematic review and meta-analysis of music interventions in hypertension treatment: a quest for answers

  

SBP baseline (mmHg)

SBP end (mmHg)

DBP baseline (mmHg)

DBP end (mmHg)

Intervention

Bekiroglu [18]

128.2 (6.7)

115.2 (5.3)

77.5a(−)

70.0a(−)

 

Zanini [19]

149.7 (6.4)

133.8 (13.4)

89.1 (9.1)

80.1 (10.6)

 

Chan [20]

143.8 (23.8)

130.1 (28.1)

73.1 (11.5)

67.7 (14.0)

Heterogeneity

 

X 2 P < 0.001

X 2 P < 0.001

X 2 P < 0.001

X 2 P < 0.001

I2 = 99 %

I2 = 96 %

I2 = 96 %

I2 = 91 %

R-E model

 

140.4

126.0

81.2

74.1

(95 % CI)

 

(123.7–157.2)

(111.5–140.5)

(65.5–96.9)

(61.9–86.2)

F-E model

 

138.2

117.5

82.9

75.6

(95 % CI)

 

(136.5–140.0)

(115.7–119.2)

(80.0–85.9)

(72.1–79.0)

Control

Bekiroglu [18]

121.2 (5.9)

114.7 (6.0)

80.0a(−)

70.0a(−)

 

Zanini [19]

145.4 (5.6)

141.0 (19.8)

86.9 (11.3)

83.9 (12.4)

 

Chan [20]

143.7 (22.1)

140.9 (26.4)

72.7 (12.8)

71.4 (13.6)

Heterogeneity

 

X 2 P < 0.001

X 2 P < 0.001

X 2 P < 0.001

X 2 P = 0.001

I2 = 99 %

I2 = 96 %

I2 = 94 %

I2 = 91 %

R-E model

 

136.6

131.8

79.8

77.7

(95 % CI)

 

(117.6–155.6)

(110.9–152.7)

(65.9–93.8)

(65.4–89.9)

F-E model

 

132.5

117.3

80.4

78.0

(95 % CI)

 

(130.9–134.0)

(115.2–119.3)

(76.9–83.9)

(74.2–81.7)

  1. Data expressed as “mean (SD)”, “mean (95 % CI)” or proportions
  2. R-E model random-effects model, F-E model fixed-effect model, SBP systolic blood pressure, DBP diastolic blood pressure
  3. aExcluded from analysis due to unavailable measures of dispersion