Table 3 Summary of pooled OR in different ethnicities

CC vs CT + TT

Caucasians

1. 17 (0.97–1.41)

< 0.01

68.9%

1.68

0.092

Asia

1.04 (0.87–1.25)

0.701

0.0%

0.43

0.666

CC + CT vs TT

Caucasians

1.09 (0.89–1.35)

< 0.01

78.7%

0.85

0.393

Asia

1.17 (0.94–1.47)

0.583

0.0%

1.38

0.168

C vs T

Caucasians

1.03 (0.89–1.18)

< 0.01

84.3%

0.36

0.718

Asia

1.00 (0.92–1.10)

0.538

0.0%

0.10

0.917