Numerous studies have found evidence for the role of catastrophizing about pain in adjustment to pain in both adults and children. However, the social context influencing pain and pain behaviour has been largely ignored. Especially in understanding the complexities of childhood pain, family processes may be of major importance. In line with the crucial role of pain catastrophizing in explaining adjustment and disability in adults and children, this study investigates the role of parental catastrophic thinking about their child's pain in explaining child disability and parental distress. To study parental catastrophizing, a parent version of the Pain Catastrophizing Scale (PCS-P) was developed. An oblique three-factor structure emerged to best fit the data in both a sample of parents of schoolchildren (N=205) and in a sample of parents of children with chronic pain (N=107). Moreover, this three-factor structure was found to be invariant across both parent samples. Further, in the clinical sample, parents' catastrophic thinking about their child's pain had a significant contribution in explaining (a) childhood illness-related parenting stress, parental depression and anxiety, and (b) the child's disability and school attendance, beyond the child's pain intensity.

Chronic pain in adulthood is one of the most costly conditions in modern western society. However, very little is known about the costs of chronic pain in adolescence. This preliminary study explored methods for collecting economic-related data for this population and estimated the cost-of-illness of adolescent chronic pain in the United Kingdom. The client service receipt inventory was specifically adapted for use with parents of adolescent chronic pain patients to collect economic-related data (CSRI-Pain). This method was compared and discussed in relation to other widely used methods. The CSRI-Pain was sent to 52 families of adolescents with chronic pain to complete as a self-report retrospective questionnaire. These data were linked with unit costs to estimate the total care cost package for each family. The economic impact of adolescent chronic pain was found to be high. The mean cost per adolescent experiencing chronic pain was approximately 8,000 pounds per year, including direct and indirect costs. The adolescents attending a specialised pain management unit, who had predominantly non-inflammatory pain, accrued significantly higher costs, than those attending rheumatology outpatient clinics, who had mostly inflammatory diagnoses. Extrapolating the mean total cost to estimated UK prevalence data of adolescent chronic pain demonstrates a cost-of-illness to UK society of approximately 3,840 million pounds in one year. The implications of the study are discussed.

Chronic pain causes significant problems in the lives of many adolescents, considerably affecting their physical, psychological and social functioning. The assessment of the multidimensional impact of chronic pain is an essential clinical task. This study reports on the development and psychometric evaluation of the Bath Adolescent Pain Questionnaire (BAPQ); an assessment tool designed specifically for use with adolescents who experience chronic pain. A sample of 222 adolescents (11-18 years) experiencing chronic pain completed the 109-item draft inventory. Participants were recruited from two different UK clinics. All participants responded to items using a 5-point frequency scale. Psychometric evaluation of the data resulted in a reduced inventory length of 61 items. Internal consistency of all seven questionnaire subscales was established using Cronbach's alpha. Comparative validity was undertaken by comparison of all individual subscales with existing validated measures (SCAS, CDI-S, FDI, Brief FAM. PCS and CASAFS). The temporal reliability of each inventory subscale was established using a sub-sample of 30 adolescent participants over a 17-day period. Psychometric evaluation of the data suggests the inventory yields both a reliable and valid assessment of the impact of chronic pain on the lives of adolescents. The BAPQ may offer a comprehensive way to assess the widespread deleterious impact of adolescent chronic pain in both a research and clinical setting. Further investigation is needed on the predictive validity of the subscales. Additional data from samples of patients with diagnoses that are not musculoskeletal in origin would be of great assistance.