Conclusions: Two Risser grading systems coexist, and the agreement between them is moderate.
结论:两个里塞尔分级制度并存,它们之间的协议是温和的。
The first objective of the present study was to evaluate the agreement between the two Risser grading systems.
本研究的第一目的是评估两国里塞尔分级系统的协议。
Results: With use of kappa statistics, moderate agreement between the United States and European grading systems was seen.
结果:随着卡帕统计,可见美国和欧洲的分级系统比较温和。
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