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Table 4 The effects of CoQ10 supplementation on lipid profiles with CI 95% by using subgroup analysis

From: The effects of coenzyme Q10 supplementation on lipid profiles among patients with coronary artery disease: a systematic review and meta-analysis of randomized controlled trials

Variables

Ka

I2 (%)

Q test

SMD (95% CI)

P-value

TC

 Total

8

94.9

138.32

−1.07 (−1.94, −0.21)

0.015

 Type of disease

  HF

3

0.00

0.04

0.16 (−0.15, 0.47)

0.306

  CAD

5

96.7

122.87

−2.01 (−3.43, −0.60)

0.005

 Type of intervention

  Q10

6

84.7

32.72

−0.32 (−0.85, 0.22)

0.244

  Q10 + other

2

99.0

102.67

−4.50 (−13.39, 4.39)

0.321

 Dosage of intervention (mg/dL)

   ≤ 150

5

96.3

107.92

−1.53 (−2.83, −0.23)

0.021

   > 150

3

93.4

30.37

−0.52 (−1.78, 0.73)

0.414

 Duration of study

   < 8 weeks

3

0.00

1.06

0.06 (−0.26, 0.39)

0.707

   ≥ 8 weeks

5

96.9

128.76

−1.94 (−3.33, − 0.54)

0.006

 Sample size

   ≤ 50 person

2

0.00

0.60

−0.03 (− 0.44, 0.39)

0.13

   > 50 person

6

96.3

135.05

−1.52 (−2.67, − 0.37)

2.59

LDL-C

 Total

6

82.8

29.05

−0.37 (− 0.87, 0.13)

0.149

 Type of disease

  HF

3

91.8

24.47

−0.51 (−1.66, 0.64)

0.387

  CAD

3

42.7

3.49

−0.25 (− 0.61, 0.11)

0.167

 Type of intervention

  Q10

6

82.8

29.05

−0.37 (− 0.87, 0.13)

0.149

  Q10 + other

 Dosage of intervention

   ≤ 150

3

48.7

3.90

−0.24 (− 0.64, 0.16)

0.232

   > 150

3

91.8

24.25

−0.53 (−1.64, 0.57)

0.344

 Duration of study

   < 8 weeks

3

40.5

3.36

−0.12 (− 0.55, 0.30)

0.568

   ≥ 8 weeks

3

91.2

22.64

−0.62 (−1.55, 0.31)

0.195

 Sample size

   ≤ 50 person

2

70.0

3.33

−0.14 (− 0.91, 0.63)

0.721

   > 50 person

4

87.8

24.52

−0.48 (−1.17, 0.21)

0.171

HDL-C

 Total

 Type of disease

5

94.7

76.05

1.30 (0.20, 2.41)

0.021

  HF

2

0.00

0.02

−0.04 (−0.43, 0.36)

0.859

  CAD

3

95.9

48.48

2.28 (0.51, 4.05)

0.011

 Type of intervention

  Q10

5

94.7

76.05

1.30 (0.20, 2.41)

0.021

  Q10 + other

 Dosage of intervention

   ≤ 150

3

78.5

9.29

0.66 (0.03, 1.30)

0.041

   > 150

2

98.5

66.76

2.58 (−2.65, 7.81)

0.334

 Duration of study

   < 8 weeks

3

62.7

5.36

0.24 (−0.30, 0.78)

0.387

   ≥ 8 weeks

2

97.8

45.29

3.14 (−0.96, 7.24)

0.133

 Sample size

   ≤ 50 person

2

71.2

3.48

0.41 (−0.39, 1.20)

0.315

   > 50 person

3

97.0

67.48

2.00 (0.06, 3.93)

0.043

Lp(a)

 Total

3

95.7

46.96

−1.12 (−2.84, 0.61)

0.204

 Type of disease

  HF

1

0.00

0.13 (−0.39, 0.66)

0.621

  CAD

2

97.3

37.38

−1.79 (−4.98, 1.40)

0.272

 Type of intervention

  Q10

3

95.7

46.96

−1.12 (−2.84, 0.61)

0.204

  Q10 + other

 Dosage of intervention

   ≤ 150

2

97.3

37.38

−1.79 (− 4.98, 1.40)

0.272

   > 150

1

0.00

0.13 (−0.39, 0.66)

0.621

 Duration of study

   < 8 weeks

2

97.7

44.27

−1.64 (−5.14, 1.87)

0.360

   ≥ 8 weeks

1

0.00

−0.18 (− 0.69, 0.32)

0.476

 Sample size

   ≤ 50 person

1

0.00

−3.44 (−4.36, −2.53)

< 0.001

   > 50 person

2

0.00

0.72

−0.03 (− 0.40, 0.33)

0.866

  1. a K, Number of SMD included; CAD coronary artery disease, HDL-C high density lipoprotein-cholesterol, HF heart failure, LDL-C low density lipoprotein-cholesterol, Lp(a) Lipoprotein(a), TC total cholesterol