Compensation and non-compensation chronic pain patients compared for DSM-III operational diagnoses

Two hundred and eighty-three mixed chronic pain patients, consecutive admissions, were diagnostically evaluated as per DSM-III, Axis I, Axis II or personality type psychiatric operational criteria. Controlling for primary organic treatment diagnosis, age and race, statistical comparisons were made between male compensation patients (n = 93) and male non-compensation patients (n = 23) and between female compensation patients (n = 38) and female non-compensation patients (n = 28) for all DSM-III diagnoses. Male compensation patients were significantly overrepresented for these diagnostic groups: conversion disorder (somatosensory type); combined personality disorders; and passive-aggressive personality disorder. Male non-compensation patients were significantly overrepresented for these diagnostic groups: no diagnosis on Axis I; combined personality types; and compulsive personality type. Female compensation patients were significantly overrepresented for conversion disorder (somatosensory) only. Female non-compensation patients were significantly overrepresented for generalized anxiety disorder and combined anxiety syndromes. Compensation chronic pain patients may be at risk for some psychiatric disorders not previously identified: conversion disorder (somatosensory), and personality disorders.