Brief COPE indicates Brief Coping Orientation to Problems Experienced Inventory; FACT-L, Functional Assessment of Cancer Therapy–Lung; PHQ-9, Patient Health Questionnaire 9. On the box plots, the tops and bottoms of the boxes indicate IQRs; center horizontal lines, medians; and diamonds, means. Whiskers extend to the highest and lowest values within 1.5 times the IQR, and dots beyond the whiskers reflect outlying data. The numbers beneath the box plots show the number of patients in each group who completed the patient-reported assessment.