title: The Experience of Cognitive Intrusion of Pain: scale development and validation.
abstract: Patients with chronic pain often report their cognition to be impaired by pain, and this observation has been supported by numerous studies measuring the effects of pain on cognitive task performance. Furthermore, cognitive intrusion by pain has been identified as one of 3 components of pain anxiety, alongside general distress and fear of pain. Although cognitive intrusion is a critical characteristic of pain, no specific measure designed to capture its effects exists. In 3 studies, we describe the initial development and validation of a new measure of pain interruption: the Experience of Cognitive Intrusion of Pain (ECIP) scale. In study 1, the ECIP scale was administered to a general population sample to assess its structure and construct validity. In study 2, the factor structure of the ECIP scale was confirmed in a large general population sample experiencing no pain, acute pain, or chronic pain. In study 3, we examined the predictive value of the ECIP scale in pain-related disability in fibromyalgia patients. The ECIP scale scores followed a normal distribution with good variance in a general population sample. The scale had high internal reliability and a clear 1-component structure. It differentiated between chronic pain and control groups, and it was a significant predictor of pain-related disability over and above pain intensity. Repairing attentional interruption from pain may become a novel target for pain management interventions, both pharmacologic and nonpharmacologic.
authors.affiliation: Centre for Pain Research, Department for Health, University of Bath, Bath, United Kingdom Department of Experimental-Clinical and Health Psychology, Ghent University, Ghent, Belgium Department of Psychology, University of Bath, Bath, United Kingdom.
authors.forename: Nina
authors.initials: N
authors.lastname: Attridge
authors.forename: Geert
authors.initials: G
authors.lastname: Crombez
authors.forename: Dimitri
authors.initials: D
authors.lastname: Van Ryckeghem
authors.forename: Edmund
authors.initials: E
authors.lastname: Keogh
authors.forename: Christopher
authors.initials: C
authors.lastname: Eccleston
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001007:Anxiety / Q000175:diagnosis / Q000209:etiology; D001143:Arousal / Q000502:physiology; D001364:Awareness; D058443:Catastrophization; D059350:Chronic Pain / Q000150:complications*; D003072:Cognition Disorders / Q000175:diagnosis / Q000209:etiology* / Q000523:psychology*; D005260:Female; D005356:Fibromyalgia / Q000150:complications; D006801:Humans; D007391:International Cooperation; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010147:Pain Measurement; D011569:Psychiatric Status Rating Scales; D015203:Reproducibility of Results; D012727:Sex Characteristics; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires; D055815:Young Adult