Sample size | Total(cm) | Left(cm) | Right(cm) | t valuea | P valuea | |
---|---|---|---|---|---|---|
Current study | 25 | 11.75 ± 1.01 | 11.75 ± 1.02 | 11.76 ± 1.08 | − | − |
Yamada etc. [19] | 40 | − | 11.38 ± 9.60 | 11.27 ± 9.10 | left: − 0.19;right: − 0.27 | left: 0.849;right: 0.790 |
Zhu etc. [20] | 30 | − | 11.48 ± 9.44 | 11.57 ± 8.24 | left: − 0.14;right: − 0.11 | left: 0.888;right: 0.909 |
Yuan etc. [21] | 25 | 11.52 ± 8.80 | − | − | – 0.13 | 0.897 |
Wang etc. [22] | 30 | 10.95 ± 4.63 | − | − | – 0.85 | 0.399 |