Table 2 Influence analysis of individual studies

Burge et al. [9]

–

–

–

2.13 (0.67, 6.77)

1.54 (0.93, 2.54)

1.78 (0.96, 3.31)

–

–

–

Burge et al. [24]

98.04 (94.90, 101.18)

94.37 (79.42, 109.33)

–

–

–

–

–

–

Greaves et al. [26]

97.09 (92.14, 102.04)

93.53 (77.26, 109.79)

86.50 (78.01, 94.98)

–

–

–

–

–

Courtney and Merrett [10]

97.83 (94.70, 100.95)

94.92 (81.21, 108.64)

–

3.56 (1.81, 7.03)

3.05 (1.48, 6.29)

2.14 (1.12, 4.06)

4.50 (1.68, 12.02)

2.65 (0.73, 9.65)

1.53 (0.59, 3.93)

Gupta et al. [25] (males)

97.91 (94.78, 101.05)

100.38 (88.72, 112.04)

88.13 (78.79, 97.47)

–

1.61 (0.94, 2.74)

1.38 (0.93, 2.06)

–

–

–

Gupta et al. [25] (females)

98.08 (94.93, 101.22)

99.90 (88.11, 111.69)

86.98 (78.16, 95.80)

Lee et al. [11]

97.49 (93.67, 101.31)

93.57 (76.58, 110.56)

81.81 (69.55, 94.08)

2.41 (0.99, 5.97)

1.90 (1.05, 3.46)

1.61 (1.00, 2.60)

2.65 (1.48, 4.75)

1.54 (0.71, 3.34)

1.19 (0.69, 2.08)

Palmer and Crane [8]

1.56 (0.89, 2.73)

1.88 (0.99, 3.59)

1.92 (1.01, 3.67)

1.88 (0.95, 3.76)

1.37 (0.57, 3.31)

1.25 (0.65, 2.39)