Fig. 4

Nomogram for estimating the probability of having a “lifetime” history of depression for individuals with chronic regional pain. Gender: male—1 and female—0. Nature of pain: neuropathic pain—1 and non-neuropathic pain—0. Regular opioid use: yes—1 and no—0. History of asthma: yes—1 and no—0. Pain location that bothers you most: arm pain—a, back pain—b, chest pain—c, facial pain—d, feet pain—e, hand pain—f, headache—g, hip pain—h, knee pain—i, leg pain—j, neck or shoulder pain—k, and stomach or abdominal pain—l. Instructions for the use of the nomogram: (1) locate the answer for each predictor, (2) draw a straight line upward to the point axis and record the score, (3) calculate the total score for all predictors and locate the score in the total points axis, (4) draw a straight line downward to the probability axis to estimate the individual’s probability of having a “lifetime” history of depression