Chinese Herbal Extractions for Relieving Radiation Induced Lung Injury: A Systematic Review and Meta-Analysis

Table 1

RTOG and NCI-CTCAE Version 4.03 clinical grading scale of radiation pneumonitis.

Grade	RTOG	NCI-CTCAE
1	Mild dry cough not requiring medications	Asymptomatic; clinical or diagnostic observations only; intervention not indicated
2	Cough requiring narcotic antitussives or dyspnoea not at rest	Symptomatic; medical intervention indicated; limiting instrumental ADL
3	Severe cough not controlled by medications. Dyspnoea at rest	Severe symptoms; limiting self-care ADL; oxygen indicated
4	Continuous oxygen or assisted ventilation	Life-threatening respiratory compromise; urgent intervention indicated (e.g., tracheotomy or intubation)
5	Fatal	Death