Fig. 3.

Pain morbidity at baseline and maximum assessments. Pain medication was used as a surrogate marker for PN related pain at both timepoints. There was an increase in the amount of scheduled and PRN (as needed) pain medications used at maximum assessment (A, solid bars) compared with baseline (A, striped bars). Similarly, the use of opioid, neuropathic and over-the-counter (OTC) pain medications all increased between the baseline and maximum assessments (B).