Study

OR

[95% Conf. Interval]

%Weight

张瑶等(1986)

2.480

1.648

3.732

72.45

张郦君(2009)

3.500

1.386

8.835

12.00

赵力立等(2016)

2.448

1.001

5.983

15.55

M-HPooledOR

2.597

1.840

3.666

100.00