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Table 1 Characteristics of included studies

From: Clinical effects of a standardized Chinese herbal remedy, Qili Qiangxin, as an adjuvant treatment in heart failure: systematic review and meta-analysis

ID (Author year)

Disease

Setting (in/out patients)

Diagnosis criteria

Sample size

Age-T

Age-C

Men-%

Course of treatment

Bai LQ 2013

HF

in

NYHA

40

45 ± 3.7

52 ± 4.2

57.5

3M

Cai RF 2013

CHF

NA

CMA 2009; MoH 2002; Framingham criteria; NYHA

50

52-80

52-81

54

4W

Cai YP 2013

CHF

in or out

Framingham criteria; NYHA

108

73.2 ± 11.5

60.19

6M

Chen L 2009

CHF

in

ACC/AHA 1995; MoH 2002; NYHA

61

67.2 ± 11.5

63.1 ± 13.8

57.38

4W

Chen TC 2013

CHF

NA

CMA 2007; NYHA

52

71-92

68-91

53.85

4W

Chen WQ 2012

CHF

in or out

CMA 2007; NYHA

120

58 ± 14

57 ± 14

59.17

6M

Chen XH 2014

HF

NA

CMA 2014

60

63 ± 10

62 ± 11

52.17

6M

Cheng XD 2013

ischemic heart failure

in

ACC/AHA criteria; NYHA

90

56.4 ± 6.2

54.2 ± 5.9

55.56

6W

Cui LL 2012

CHF

in

CMA 2007; NYHA

68

59.41 ± 9.68

58.6 ± 7.71

48.53

5M

Dai JX 2013

chronic congestive heart failure

NA

Guidelines for the Diagnosis and Treatment of Cardiovascular Disease 2006

100

70.2

58

4W

Ding LB 2010

HF

in

Internal Medicine 2004; MoH 2002

43

45 ± 12.2

42 ± 11.3

55.81

2M

Ding SY 2013

CHF

NA

Practical Internal Medicine 2001; NYHA

72

48-82

51-79

45.83

4W

Dong MX 2013

chronic congestive heart failure

in

Practical Internal Medicine 2001; NYHA

114

71.5

 

59.65

4W

Du YK 2014

diastolic heart failure

out

CMA 2007

102

60-86

59-82

39.22

30D

Duan JH 2010

CHF

NA

Clinical Cardiology 1996

61

63.4 ± 10.3

61.5 ± 8.7

72.13

3M

Fan J 2013a

CHF

NA

Internal Medicine 2008; NYHA

86

68.1 ± 9.5

68.7 ± 9.6

55.81

2M

Feng QT 2013

chronic congestive heart failure

out

Framingham criteria

42

55.6 ± 10.32

54.66 ± 10.41

59.52

6M

Fu JZ 2012

CHF

 

Internal Medicine 2004; NYHA

60

77.3 ± 10.2

78.0 ± 10.1

58.33

3M

Gao JB 2011

chronic congestive heart failure

in or out

MoH 2002

167

58 ± 11

58.08

4W

Gu XM 2009

CHF

in or out

AHA criteria

38

52 ± 9

48 ± 10.6

68.42

2M

Gu XM 2013

CHF

in or out

ACC/AHA 2005; NYHA

65

57 ± 18.5

56 ± 16

66.15

4W

Gu YY 2012

CHF

in or out

NYHA

100

65.5 ± 10.1

62.3 ± 12.5

58.57

6M

Guan SY 2012

CHF

NA

Consensus for diagnosis and treatment of heart failure with normal ejection fraction in China 2010

82

56 ± 13

54 ± 13

42.68

8W

Guan SY 2013

CHF

NA

CMA 2007

72

55 ± 12

54 ± 13

52.78

12W

Guo P 2014

CHF

NA

ACC/AHA criteria; NYHA

90

71.6 ± 4.5

72 ± 3.5

58.7

3M

Guo SL 2011

chronic congestive heart failure

in

CMA 2007

120

60-80

60

3M

Guo WB 2013

chronic congestive heart failure

in

CHF criteria 1979

70

61.5 ± 9.12

57.4 ± 8.97

57.14

8W

Hu B 2013

CHF

in or out

Framingham criteria

80

39-75

36-76

78.75

3M

Huang B 2010

chronic congestive heart failure

NA

Framingham criteria; NYHA

100

61.2 ± 11.8

60.8 ± 12.5

60

6M

Huang YQ 2012

chronic congestive heart failure

NA

Internal Medicine 2004

46

60 ± 7.5

58 ± 7.8

47.83

4W

Huang Z 2014

CHF

in or out

CMA 2007; NYHA

60

35-74

35-74

58.33

12W

Jin Y 2012

heart failure derived from ischemic cardiomyopathy

NA

ICM criteria (Felker GM) 2002; NYHA

100

62.0 ± 15.2

63.0 ± 13.9

47

12W

Jing GJ 2009

CHF

in or out

WHO criteria; CMA 2002; MoH 2002

60

62.0 ± 3.5

63 ± 4.0

58.33

4W

Kuang JB 2008

CHF

NA

ESC criteria

106

71.6

45.16

8W

Li DW 2013

chronic congestive heart failure

in

NYHA

78

66

51.28

12W

Li GM 2011

chronic congestive heart failure

in or out

Framingham criteria; NYHA

120

72.5

71.8

56.67

4W

Li LC 2013

heart failure derived from ischemic cardiomyopathy

NA

NYHA

110

61 ± 13

63 ± 12

54.55

4W

Li P 2011

CHF

in or out

CMA 2002;NYHA

76

66.1 ± 7.8

66.3 ± 7.2

59.21

3M

Li Q 2014

HF

NA

NYHA

120

71.4 ± 8.0

70.2 ± 7.1

70.59

6M

Li RY 2010a

CHF

NA

NYHA

86

68.4 ± 1.3

68.1 ± 1.3

67.44

4W

Li SQ 2014

CHF

in or out

CMA 2007; NYHA

147

41.2 ± 12.5

39.8 ± 13.2

40.82

2M

Li SZ 2009

congestive heart failure

NA

NYHA

39

62 ± 7

56.41

4W

Li T 2010

CHF

in

Boston criteria; NYHA

44

56 ± 14

56.82

4W

Li WY 2013

CHF

NA

Internal Medicine 2008; NYHA

90

71 ± 4.6

73 ± 4.2

57.78

4W

Li XL 2013

CHF

NA

CMA 2007; NYHA

512

56.98 ± 11.59

57.53 ± 11.05

75.36

12W

Li YH 2013

CHF

NA

NYHA

80

67.3 ± 11.6

70

3M

Li YX 2012

diastolic heart failure

in or out

ESC criteria; MoH 2002

100

61.6 ± 5.1

61.4 ± 5.4

43

6M

Li YX 2013

CHF

NA

ESC 2007; MoH 2002;Collateral Disease Theory 2006

80

61.6 ± 5.1

61.4 ± 5.4

46.25

12M

Lin JH 2008

CHF

in or out

Clinical Cardiology 1999; NYHA

80

58 ± 12

60

4W

Lin ZJ 2010

heart failure derived from ischemic cardiomyopathy

NA

WHO/ISFC 1980; NYHA

60

40 ± 13

38 ± 12

45

6M

Liu HL 2008

CHF

NA

Guidelines for Cardiovascular Disease 2005; NYHA

86

32.9 ± 4.1

33.1 ± 3.2

52.33

4W

Liu J 2008

heart failure derived from ischemic cardiomyopathy

NA

WHO/ISFC 1980; NYHA

41

41 ± 11

40 ± 11

60.98

6M

Liu LX 2014

HF

NA

Practical Internal Medicine 2009

60

64.4 ± 11.5

64.5 ± 11.3

61.67

12W

Liu SJ 2009

CHF

in or out

Clinical Cardiology 1996; MoH 2002; NYHA

45

68.2 ± 7.6

66.8 ± 8.2

60

4W

Liu T 2013

HF

NA

NYHA

95

63.7 ± 7.4

65.7 ± 7.6

71.58

4W

Liu TR 2010

CHF

NA

NYHA

84

46-68

45-70

63.1

8W

Liu WJ 2007

ischemic cardiomyopathy

in

Felker's criteria

60

66 ± 10

65 ± 11

70

4M

Liu XC 2008

refractory heart failure

NA

NYHA

120

56-79

58-78

80.83

30D

Liu XC 2011

CHF

in or out

AHA criteria; NYHA

80

56.9 ± 7.3

57.0 ± 7.6

65

8W

Liu XG 2013

CHF

in or out

AHA criteria; NYHA; MoH 2002

60

61.2 ± 11.8

60.8 ± 12.5

58.33

3M

Liu XM 2010

HF

NA

ACC/AHA criteria; NYHA

76

65-82

52.63

3M

Liu XM 2013

CHF

NA

CMA 2007

64

69 ± 11

68 ± 12

57.81

4W

Liu YJ 2012

HF

in or out

Clinical Cardiology; NYHA

60

78-90

76-92

68.33

30D

Long F 2009

CHF

in

Clinical Cardiology 1996; CMA 2002; NYHA

110

20-73

18-70

53.64

4W

Lu JP 2012

CHF

in

CMA 2007; NYHA

60

73.2 ± 12.5

72.9 ± 11.8

65

24W

Luo Q 2013

chronic congestive heart failure

in

NYHA

60

62.5 ± 13.0

64.5 ± 12.2

56.67

3M

Ma AP 2013

CHF

NA

NYHA

96

66.28 ± 4.92

65.84 ± 5.06

56.25

6M

Ma FF 2008a

CHF

in

Boston criteria 1985; NYHA

120

65.4

64.6

46.67

4W

Ma FF 2008b

CHF

in

Boston criteria 1985; NYHA

65

64.1 ± 17.2

46.15

4W

Ma L 2010

CHF

in or out

ESC 1995; NYHA; MoH 2002

117

52.3 ± 9.2

50.1 ± 10.5

61.54

4W

Ma RX 2014

CHF

in

CMA 2007

120

62 ± 12

60 ± 11

65.75

4W

Miao S 2013

HF

NA

NYHA

102

77.2 ± 6.1

100

2M

Niu LY 2012

CHF

NA

ACC/AHA criteria; NYHA; MoH 2002

60

63.2 ± 4.1

60.8 ± 5.4

63.33

4W

Pang XM 2008

CHF

NA

Framingham criteria

31

66 ± 12

48.39

4W

Qiu X 2013

CHF

NA

NYHA

60

62 ± 4.2

60 ± 3.2

66.67

3M

Rao LZ 2012

CHF

NA

CMA 2007; NYHA

80

65 ± 15

64 ± 14

51.25

4W

Shen R 2010

HF

in

NYHA

62

74 ± 5

74 ± 7

77.42

28D

Shen XR 2014

CHF

in or out

ACC/AHA criteria; NYHA

122

62 ± 6

66.45

12M

Shi CP 2013

CHF

in

ISFC/WHO 1979; NYHA

120

64.5 ± 6.2

67.5

3M

Su HM 2007

chronic congestive heart failure

in

Framingham criteria; NYHA 1994

70

55.7

54.6

60

30D

Su LJ 2012

CHF

in or out

CMA 2002; Practical Internal Medicine 2001; NYHA

69

NA

NA

65.22

8W

Su RY 2013

CHF

NA

CMA 2007; NYHA

86

69

46.51

4W

Sun LP 2007

chronic congestive heart failure

in

NYHA

60

62 ± 12

63.33

12W

Tang SY 2013

CHF

in

CMA 2002; Clinical Cardiology 1996; Internal Medicine 2004; NYHA

80

65.4

64.6

47.5

4W

Tao X 2011

CHF

NA

ESC 2008

100

NA

NA

0

4W

Tian Y 2011

diastolic heart failure

NA

ESC criteria; MoH 2002

100

58.0 ± 8.2

58.0 ± 8.5

47

1M

Wang N 2014

CHF

in or out

MoH 2002

54

55-75

58-76

53.7

8W

Wang Q 2012

CHF

in or out

NYHA

80

40-70

41-70

61.25

24W

Wang SZ 2012

HF

NA

Diabetic Cardiomyopathy 2010; NYHA

60

60 ± 13

60 ± 11

61.67

4W

Wang YY 2013

chronic congestive heart failure

in or out

NYHA

79

62.6 ± 2.4

61.4 ± 2.3

53.16

4W

Wei XB 2013

CHF

in

NYHA; ACC/AHA 2009

84

87 ± 6

100

12W

Wen Y 2012

CHF

NA

CMA 2007; NYHA

90

70.4 ± 5.6

57.78

1M

Wu GL 2015

CHF

out

CMA 2007; NYHA

104

67.5 ± 6.8

66.7 ± 7.1

64.32

2M

Wu SP 2014

CHF

in or out

CMA 2014

130

52.2 ± 5.8

53.8 ± 7.3

73.8

4W

Wu Xian 2014

CHF

in

CMA 2007

60

64.47 ± 8.23

63.57 ± 8.94

55.38

4W

Xiong SQ 2014

CHF

in

CMA 2007; NYHA

80

61.2 ± 7.11

62.3 ± 7.45

52.5

6W

Xu GS 2014

CHF

NA

NYHA

64

55.7 ± 14.0

53.6 ± 15.0

59.38

120D

Xue L 2014

CHF

in

A list of clinical manifestation

124

42-86

64.52

8W

Xue LX 2008

chronic congestive heart failure

in or out

AHA criteria

80

56.9 ± 7.3

57.0 ± 7.6

65

8W

Yan KL 2012

CHF

in

Practical Internal Medicine 2009; NYHA

120

65.2 ± 17.5

56.67

12W

Yang DK 2014

CHF

in

NYHA

60

66.0 ± 12.06

65.8 ± 11.33

63.33

4W

Yang F 2007

CHF

NA

ESC 2005

128

66.0 ± 14.0

65.0 ± 15.0

56.25

8W

Yang HT 2012

CHF

in

Clinical Cardiology 1999; NYHA

100

58.5 ± 7.0

59 ± 7.6

57

4W

Yang HT 2013

CHF

in

Clinical Cardiology 1999

100

58.5 ± 7.0

59 ± 7.6

57

4W

Yang J 2013

CHF

NA

CMA 2007; NYHA

90

56.8 ± 4.3

C1 (57.2 ± 4.1) C2 (57.1 ± 3.9)

43.33

12W

Yang W 2012

CHF

in

CMA 2007; NYHA

80

60.52 ± 12.6

62.7 ± 9.6

56.25

4W

Yao L 2011

CHF

in

CMA 2007; NYHA

102

52 ± 11

56 ± 9

52.94

8W

Ye RS 2013

CHF

NA

CMA 2007; NYHA

80

65-92

65-90

56.25

6M

Ye S 2012

CHF

in

CMA 2007; NYHA

114

60.29 ± 5.62

53.51

3M

Yin ZL 2009

congestive heart failure

in

Framingham criteria; NYHA

50

57.4 ± 7.6

66

4W

Ying M 2013

CHF

NA

Framingham criteria; NYHA

80

50-80

52.5

3M

Yu JH 2008

diastolic heart failure

in

Framingham criteria; CHFA 2001; NYHA

70

65.7 ± 6.1

66.1 ± 8.2

60

12M

Yuan JK 2012

HF

in

NYHA

62

41.65 ± 9.33

43.08 ± 7.55

58.06

4W

Zhai N 2015

CHF

NA

CMA 2014

80

70.6 ± 4.4

61.54

12W

Zhang CA 2013

CHF

in or out

AHA 1995; NYHA

83

59.31 ± 10.19

61.0 ± 8.39

66.27

12W

Zhang H 2011

CHF

NA

ISFC/WHO criteria

123

45-80

50-82

60.16

4W

Zhang J 2015

CHF

NA

Practical Internal Medicine 1998,NYHA

60

63.1 ± 9.5

62.5 ± 8.2

50

4W

Zhang R 2014

CHF

in

CMA 2007; NYHA

80

55.0 ± 10.9

53.0 ± 11.3

62.14

8W

Zhang WL 2013

CHF

in

NYHA

94

47-86

45-87

58.51

4W

Zhang XX 2010

left cardiac insufficiency

NA

NYHA

136

53.5

52.94

6M

Zhao JS 2014

CHF

NA

CMA 2007; NYHA; MoH 2002

450

54.8 ± 4.6

55.3 ± 4.7

48.33

12W

Zhao MJ 2009 &Zhao MJ 2012

HF

in or out

Framingham criteria; NYHA

68

46-69

45-69

64.71

4W

Zheng JJ 2012

CHF

in

CMA 2007; NYHA

76

64 ± 15

64 ± 14

55.26

6M

Zheng LW 2013

CHF

in or out

CMA 2007; NYHA

164

66.9 ± 11.5

67.8 ± 12.0

53.05

12W

Zheng WH 2014

refractory heart failure

NA

NYHA

87

63.44 ± 2.20

61.92 ± 2.70

56.32

6W

Zhou FZ 2011a

congestive heart failure

in

NYHA

59

66

69.49

12W

Zhou Y 2013

HF

NA

Internal Medicine 2010

60

56.9 ± 7.3

57.0 ± 7.6

63.33

8W

Zhu HG 2012

CHF

in or out

NYHA

78

63.1

63.4

61.54

3M

Zhuo JY 2013

CHF

NA

NYHA

136

62.74 ± 7.78

61.01 ± 8.12

54.41

4W

  1. ACC American College of Cardiology, AHA American Heart Association, C control group, CHF chronic heart failure, CHFA Chinese Heart Failure Association, CMA Chinese Medical Association, ESC European Society of Cardiology, HF heart failure, ISFC International Society and Federation of Cardiology, ISH International Society of Hypertension, MoH Ministry of Health in China, NA not available, NYHA New York Heart Association, T treatment group, WHO World Health Organization