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χ
值是一种统计学上的工具，来获得关于到场和不到场以及特殊的诊断的协同系数。
根据χ值主要是关于甲状腺的触诊，得出内部观察差别χ = -0.04
和 0.54
，中间观察差别
χ =
0.44e
1.0
。甲状腺结节的中间观察差别的χ＝0,55 e 0,6.
这就意味着甲状腺的触诊有一个适度的χ值。
Typical Cutoffs for Defining
Agreement Based on Kappa Value - 0.8 - 1.0 Very good/ 0.6 - 0.8
Good/ 0.4 - 0.6 Moderate/0.2 - 0.4
Fair/ 0.0 - 0.2 Poor
1 Jarlov A E
等人, Observer variation in clinical assessment of the
thyroid gland.Journal of
Internal Medicine 1991; 229: 159-61
2-Jarlov AE
等人， Observer variation in ultrasound assessment of the
thyroid gland. British
Journal of Radiology 1993; 66:
625-27.
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