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. 2020 Jul 8;4:54. doi: 10.1186/s41687-020-00220-x

Fig. 2.

Fig. 2

Criterion Validity For Each Symptom Based on Kappa Statistics Overall (Mean) and by Assessment Day. Criterion validity for the seven treatment toxicity categories most commonly associated with EGFRI toxicity. Criterion validity is based on agreement between the FACT-EGFRI 18 and the CTCAE scoring systems, and was assessed both overall and by assessment day. Moderate or better agreement is defined as Kappa coefficients of ≥0.41