Table 1. Evaluation of chemotherapy-induced peripheral neuropathy.

Factors	Grade 0	Grade 1	Grade 2	Grade 3	Grade 4
Paresthesia	No symptom	Presence of paresthesia and/or decreased DTR (no requirement of medication)	Severe paresthesia (improved with medication, tolerable without medication)	Intolerable paresthesia (intolerable without medication)	Life-threatening consequence: urgent intervention indicated (death related to overdose of medication)
Pain	NRS 0	NRS 1–3	NRS 4–6	NRS 7–9	NRS 10
Motor function	No weakness	Normal ADL	Limiting instrumental ADL and/or light muscle weakness	Limiting self-care ADL and/or marked muscle weakness	Life-threatening consequence: urgent intervention indicated

ADL, activity of daily living; DTR, deep tendon reflex; NRS, numerical rating scale.