Table 2 Characteristics of the included studies

Zhao et al. 2009 [18]

34/34

23/11

21/13

–

0, 14, 20, 0

0, 15, 19, 0

QLQX + CAM

CAM

4

①

Liu et al. 2009 [19]

21/20

13/8

12/8

41 ± 11

40 ± 10

0, 12, 9, 0

0, 12, 8, 0

QLQX + CAM

CAM

24

①②③④⑤

Zhu et al. 2010 [20]

40/40

–

52.3 ± 14.2

0, 20, 29, 31

QLQX + CAM

CAM

12

②③

Lin, 2010 [21]

30/30

15/15

12/18

40 ± 13

38 ± 12

–

QLQX + CAM

CAM

24

①②③④⑤

Yuan, 2012 [22]

30/32

20/10

16/16

41.65 ± 9.33

43.08 ± 7.5

0, 0, 12, 18

0, 0, 16, 16

QLQX + CAM

CAM

4

②③④

Zhao et al. 2012 [23]

34/34

21/13

23/11

–

0, 14, 20, 0

0, 15, 19, 0

QLQX + CAM

CAM

4

②④⑤

Yang et al. 2013 [24]

34/34

21/13

19/15

53.8 ± 10.1

54.6 ± 10.8

–

QLQX + CAM

CAM

12

②③⑥

Yu, 2013 [25]

32/32

19/13

20/12

59 ± 12

61 ± 12

–

QLQX + CAM

CAM

4

②③④⑤

Zhang et al. 2013 [26]

35/35

42/28

–

0, 0, 60, 10

QLQX + CAM

CAM

8

①②③⑤

Yi et al. 2014 [27]

45/45

25/20

26/19

52.4 ± 12.7

53.1 ± 13.4

0, 16, 18, 11

0, 14, 19, 12

QLQX + CAM

CAM

4

②③⑤

Wu et al. 2014 [28]

24/24

18/6

17/7

52.6 ± 10.7

53.9 ± 9.3

0, 9, 15, 0

0, 8, 16, 0

QLQX + CAM

CAM

12

②④

Zhou et al. 2015 [29]

20/24

13/7

12/12

46.45 ± 28.29

47.38 ± 25.46

0, 11, 9, 0

0, 13, 11, 0

QLQX + CAM

CAM

24

②③

Fu et al. 2016 [30]

30/30

22/8

23/7

56.6 ± 18.8

58.4 ± 19.3

0, 12, 18, 0

0, 10, 20, 0

QLQX + CAM

CAM

4

①②③

Ma et al. 2016 [31]

31/32

34/29

–

–

QLQX + CAM

CAM

24

①②

Wu et al. 2016 [32]

30/30

19/11

20/10

56.7 ± 7.8

57.3 ± 7.1

0, 5, 13, 12

0, 6, 14, 10

QLQX + CAM

CAM

12

②④⑤

Leng, 2016 [33]

31/31

21/10

16/15

54.65 ± 9.33

55.19 ± 7.55

0, 0, 12, 19

0, 0, 13, 18

QLQX + CAM

CAM

4

②③④⑤

Jing et al. 2017 [34]

43/42

21/22

19/23

41.3 ± 10.1

41.1 ± 9.8

–

QLQX + CAM

CAM

2

①②③④⑤

Wu et al. 2018 [35]

278/278

139/139

158/120

49.94 ± 21.58

53.19 ± 19.57

0, 165, 113, 0

0, 184, 94, 0

QLQX + CAM

CAM

48

②③

Zhao, 2018 [36]

40/40

24/16

26/14

61.5 ± 12.3

62.2 ± 12.6

0, 13, 18, 9

0, 12, 18, 10

QLQX + CAM

CAM

4

②③④⑤

Yao, 2018 [37]

48/48

30/18

29/19

54.60 ± 5.61

55.21 ± 4.68

–

QLQX + CAM

CAM

4

①

Huang, 2018 [38]

30/30

19/11

18/12

52.1 ± 3.2

52.2 ± 3.4

0, 0, 21, 9

0, 0, 20, 10

QLQX + CAM

CAM

4

①②

Wang et al. 2019 [39]

68/68

35/33

38/30

67.98 ± 6.03

68.54 ± 6.12

0, 24, 44, 0

0, 26, 42, 0

QLQX + CAM

CAM

4

①②⑤

Ren et al. 2019 [40]

64/64

34/30

32/32

71.4 ± 6.2

70.3 ± 5.8

–

QLQX + CAM

CAM

2

①②③

Liu et al. 2019 [41]

41/41

18/23

19/22

41.41 ± 5.35

41.39 ± 5.32

–

QLQX + CAM

CAM

2

①②③⑤

Zheng et al. 2019 [42]

52/52

29/23

28/24

42.14 ± 7.62

41.95 ± 7.84

0, 7, 29, 16

0, 5, 30, 17

QLQX + CAM

CAM

2

①②③

Dong, 2019 [43]

40/39

26/14

25/14

53.7 ± 10.6

54.9 ± 11.2

0, 14, 18, 8

0, 13, 19, 7

QLQX + CAM

CAM

2

①②③④

Yang et al. 2019 [44]

60/58

35/25

33/25

49.14 ± 13.52

47.89 ± 12.83

0, 23, 22, 15

0, 21, 24, 13

QLQX + CAM

CAM

24

②③

Dai et al. 2019 [45]

48/47

25/23

25/22

37.72 ± 3.85

37.86 ± 3.71

0, 0, 24, 24

0, 0, 23, 24

QLQX + CAM

CAM

12

①②

Shi, 2020 [46]

30/30

16/14

17/13

65.5 ± 3.4

65.4 ± 3.6

0, 10, 20, 0

0, 11, 19, 0

QLQX + CAM

CAM

4

①②

Li et al. 2020 [47]

40/40

27/13

26/14

54.58 ± 9.23

54.74 ± 9.36

0, 11, 19, 10

0, 12, 17, 11

QLQX + CAM

CAM

4

②③

Niu et al. 2020 [48]

68/67

42/26

41/26

47.05 ± 5.01

46.75 ± 5.012

0, 29, 24, 15

0, 30, 23, 14

QLQX + CAM

CAM

4

①②④

Yao et al. 2020 [49]

48/48

25/23

28/20

50.43 ± 6.24

50.53 ± 6.12

0, 24, 18, 6

0, 27, 16, 5

QLQX + CAM

CAM

12

①②③⑥

Li, 2020 [50]

30/30

21/9

22/8

65.78 ± 2.21

65.89 ± 2.46

–

QLQX + CAM

CAM

2

①

Meng, 2020 [51]

50/50

27/23

26/24

58.19 ± 3.25

58.25 ± 3.67

–

QLQX + CAM

CAM

2

①②③④⑤

Wang et al. 2020 [52]

40/40

26/14

24/16

68.63 ± 4.57

68.77 ± 7.16

0, 14, 18, 8

0, 13, 18, 9

QLQX + CAM

CAM

4

①②③

Wang et al. 2020 [53]

45/41

30/15

27/14

54.4 ± 10.8

53.9 ± 11.3

0, 9, 29, 7

0, 8, 28, 5

QLQX + CAM

CAM

8

①②③④

Dong, 2021 [54]

30/30

24/6

22/8

53.53 ± 10.03

52.27 ± 8.76

–

QLQX + CAM

CAM

12

①②③④

Li, 2021 [55]

50/50

27/23

26/24

65.12 ± 4.18

64.78 ± 4.68

0, 15, 22, 13

0, 16, 20, 14

QLQX + CAM

CAM

24

①②③④⑤

Zhang, 2022 [56]

40/40

–

–

–

QLQX + CAM

CAM

12

①②③④

Tan et al. 2022 [57]

42/41

22/20

21/20

68.42 ± 10.30

67.56 ± 6.83

–

QLQX + CAM

CAM

12

①②③

Wang et al. 2022 [58]

40/40

28/12

27/13

58.23 ± 11.22

59.90 ± 12.03

0, 19, 15, 6

0, 19, 16, 5

QLQX + CAM

CAM

12

①②③④

Wu et al. 2022 [59]

46/46

25/21

26/20

39.41 ± 6.37

38.56 ± 6.26

0, 16, 27, 3

0, 17, 25, 4

QLQX + CAM

CAM

12

①②③

Pan, 2022 [60]

43/43

22/21

23/20

59.78 ± 2.32

59.89 ± 2.24

0, 19, 17, 7

0, 18, 16, 9

QLQX + CAM

CAM

12

①②⑥

Yan et al. 2023 [61]

30/30

17/13

18/12

–

–

QLQX + CAM

CAM

12

①②③⑤

Han et al. 2023 [62]

39/39

18/21

16/23

43.33 ± 3.92

43.26 ± 3.85

0, 15, 12, 12

0, 16, 14, 9

QLQX + CAM

CAM

4

①②③④

Zhang et al. 2023 [63]

60/60

31/29

32/28

74.51 ± 4.67

74.74 ± 4.81

0, 27, 21, 12

0, 25, 22, 13

QLQX + CAM

CAM

16

①②⑥

Liu, 2023 [64]

44/44

30/14

32/12

64.78 ± 8.46

65.32 ± 8.25

0, 18, 17, 9

0, 15, 20, 9

QLQX + CAM

CAM

12

②

Luo et al. 2006 [65]

40/46

–

–

–

WX + CAM

CAM

2

①

Cui et al. 2009 [66]

28/32

35/25

48 ± 6

–

WX + CAM

CAM

12

②④

Zhao et al. 2009 [67]

84/84

43/41

40/44

–

–

WX + CAM

CAM

4

①

Wu et al. 2010 [68]

22/23

28/17

35 ± 5.5

–

WX + CAM

CAM

12

②④

Liu, 2012 [69]

50/50

25/25

24/26

–

–

WX + CAM

CAM

2

①

Feng, 2013 [70]

32/32

20/12

21/11

49.6 ± 5.3

50.4 ± 5.9

0, 7, 25, 0

0, 7, 25, 0

WX + CAM

CAM

4

①②

Wang, 2014 [71]

28/28

16/12

18/10

52.4 ± 4.31

–

WX + CAM

CAM

4

①

Wang, 2017 [72]

50/50

27/23

24/26

45.5 ± 5.7

44.8 ± 4.9

–

WX + CAM

CAM

4

①

Li et al. 2019 [73]

23/23

14/9

7/16

50.17 ± 10.20

50.83 ± 10.18

0, 0, 15, 8

0, 0, 16, 7

WX + CAM

CAM

12

①②④

He et al. 2019 [74]

30/30

21/9

20/10

52.97 ± 6.98

52.81 ± 6.27

0, 5, 11, 14

0, 5, 10, 15

WX + CAM

CAM

12

①②③

Tan et al. 2021 [75]

68/68

37/31

35/33

60.7 ± 0.2

60.6 ± 0.3

0, 7, 21, 40

0, 8, 21, 39

WX + CAM

CAM

12

①②③④

Ding, 2006 [76]

89/30

48/41

18/12

–

0, 4, 48, 37

0, 2, 16, 12

TXL + CAM

CAM

24

①②

Chen et al. 2019 [77]

43/43

20/23

22/21

65.1 ± 10.3

68.5 ± 9.2

0, 15, 19, 9

0, 13, 20, 10

TXL + CAM

CAM

8

①②④⑤⑥

Li et al. 2019 [78]

44/44

25/19

23/21

52.1 ± 6.5

51.2 ± 6.1

17, 17, 10, 0

14, 21, 9, 0

TXL + CAM

CAM

8

①②③⑤⑥

Liang et al. 2020 [79]

73/73

43/30

46/27

53.3 ± 5.7

53.3 ± 5.7

35, 27, 11, 0

36, 27, 10, 0

TXL + CAM

CAM

8

①②③

Li et al. 2020 [80]

56/56

36/20

35/21

62.73 ± 14.15

61.96 ± 13.88

0, 21, 23, 12

0, 20, 25, 11

TXL + CAM

CAM

12

①②③⑤

Cao, 2020 [81]

42/42

19/23

20/22

47.08 ± 3.53

46.92 ± 3.33

0, 16, 20, 6

0, 17, 20, 5

TXL + CAM

CAM

8

②③⑤⑥

Zhou et al. 2021 [82]

48/48

25/23

27/21

46.70 ± 6.19

45.90 ± 5.93

17, 19, 12, 0

18, 20, 10, 0

TXL + CAM

CAM

1

①②

Zhu, 2021 [83]

42/42

24/18

25/17

54.52 ± 4.78

55.02 ± 4.93

–

TXL + CAM

CAM

12

①②③

He et al. 2011 [84]

28/25

20/8

15/10

60 ± 18

58 ± 16

–

QSYQ + CAM

CAM

48

①②③

Wang et al. 2013 [85]

60/60

72/48

67.5 ± 5.5

–

QSYQ + CAM

CAM

6

①

Wang, 2007 [86]

30/20

18/12

12/8

41 ± 15

39.5 ± 13.5

0, 12, 13, 5

0, 8, 10, 2

SXBX + CAM

CAM

4

①③

Deng et al. 2013 [87]

65/67

76/56

62 ± 11

–

SXBX + CAM

CAM

12

②⑤

Ma et al. 2018 [88]

30/30

17/13

17/13

35.41 ± 13.02

34.51 ± 10.32

0, 16, 14, 0

0, 14, 16, 0

SXBX + CAM

CAM

8

①②④⑥

Qian et al. 2012 [89]

56/56

64/48

63 ± 17

YXST + CAM

CAM

12

①②③

Fu et al. 2014 [90]

64/62

42/22

40/22

65 ± 10.2

64 ± 10.8

0, 0, 48, 16

0, 0, 46, 16

YXST + CAM

CAM

12

①②

Wang et al. 2013 [91]

60/60

37/23

38/22

52.34 ± 9.18

51.52 ± 10.20

–

YXSC + CAM

CAM

12

①②④

Jiang, 2013 [92]

30/30

21/9

20/10

40 ± 12

41 ± 11

0, 14, 13, 3

0, 15, 12, 3

YXSC + CAM

CAM

12

①②③④

Cen et al. 2020 [93]

45/45

24/21

23/22

54.9 ± 10.2

53.9 ± 10.2

0, 0, 26, 19

0, 0, 25, 20

GTTL + CAM

CAM

8

①②③⑥

Wang, 2022 [94]

35/35

20/15

19/16

56.99 ± 5.33

57.69 ± 5.32

0, 17, 18, 0

0, 19, 16, 0

GTTL + CAM

CAM

24

①②③