title: Pain acceptance moderates the relation between pain and negative affect in female osteoarthritis and fibromyalgia patients.
abstract: BACKGROUND
  Chronic pain is often intractable despite advanced medical and psychotherapeutic treatments. Pain acceptance is emerging as a promising complement to control-based pain management strategies and a likely approach to maintaining quality of life for chronic pain patients.
  
  
  OBJECTIVE
  This theoretically based analysis of an existing database examined the extent to which pain acceptance predicted weekly reports of positive affect (PA) and negative affect (NA), and the relations of pain severity to both PA and NA.
  
  
  METHODS
  Participants were women, 36 with osteoarthritis and 86 with fibromyalgia, who completed an initial assessment for demographics, pain catastrophizing, and pain acceptance, and 2 to 12 weekly assessments of pain severity, PA, and NA.
  
  
  RESULTS
  Multilevel modeling analyses indicated that pain acceptance was related to higher levels of PA but was unrelated to NA. Furthermore, pain acceptance moderated the relation of NA and pain severity, such that expected increases in NA during pain exacerbations were buffered by higher levels of pain acceptance.
  
  
  CONCLUSIONS
  These findings suggest that pain patients with greater capacity to accept pain may be emotionally resilient in managing their condition.
authors.affiliation: Department of Psychology, Arizona State University, Tempe, AZ 85287, USA. anna.kratz@asu.edu
authors.forename: Anna L
authors.initials: AL
authors.lastname: Kratz
authors.forename: Mary C
authors.initials: MC
authors.lastname: Davis
authors.forename: Alex J
authors.initials: AJ
authors.lastname: Zautra
mesh_terms: D000328:Adult; D000339:Affect; D000368:Aged; D003710:Demography; D005260:Female; D005356:Fibromyalgia / Q000453:epidemiology*; D006801:Humans; D008875:Middle Aged; D010003:Osteoarthritis / Q000453:epidemiology*; D010146:Pain / Q000175:diagnosis / Q000453:epidemiology*; D010147:Pain Measurement; D011788:Quality of Life / Q000523:psychology; D012720:Severity of Illness Index