Twenty items from the ASI, the PASS-20 and the PCS loaded exclusively on one higher-order factor. The authors suggest the term 'sensitivity to pain traumatization' (SPT) for the underlying construct based in part on the strong, significant positive correlation between SPT scores and scores on the Post-traumatic Stress Disorder Checklist - Civilian Version. Finally, the total SPT score was significantly higher for patients with a history of pain than for those without a history of pain, both before surgery and one year after surgery. SPT describes the propensity to develop anxiety-related somatic, cognitive, emotional and behavioural responses to pain that resemble features of a traumatic stress reaction. Together, the results of the present study provide preliminary evidence for the construct validity of SPT.

BackgroundThis article reports three studies describing the development and validation of the 12-item Sensitivity to Pain Traumatization Scale (SPTS-12). SPT refers to the anxiety-related cognitive, emotional, and behavioral reactions to pain that resemble the features of a traumatic stress reaction.MethodsIn Study 1, a preliminary set of 79 items was administered to 116 participants. The data were analyzed by using combined nonparametric and parametric item response theory resulting in a 12-item scale with a one-factor structure and good preliminary psychometric properties. Studies 2 and 3 assessed the factor structure and psychometric properties of the SPTS-12 in a community sample of 823 participants (268 with chronic pain and 555 pain-free) and a clinical sample of 345 patients (126 with chronic post-surgical pain, 92 with other nonsurgical chronic pain, and 127 with no chronic pain) at least 6 months after undergoing coronary artery bypass graft surgery, respectively.ResultsThe final SPTS-12 derived from Study 1 comprised 12 items that discriminated between individuals with different levels of SPT, with the overall scale showing good to very good reliability and validity. The results from Studies 2 and 3 revealed a one-factor structure for chronic pain and pain-free samples, excellent reliability and concurrent validity, and moderate convergent and discriminant validity.ConclusionThe results of the three studies provide preliminary evidence for the validity and reliability of the SPTS-12.

Findings suggest that children with internalizing symptoms may benefit from both school-based CBT and structured activity programs. Replication, longer follow-up, and further studies of therapeutic elements in child CBT are indicated. ISRCTN Registry identifier: ISRCTN88858028, url: http://www.controlled-trials.com/.

Factor-analyrtic studies of the structure of posttraumatic stress disorder (PTSD) symptoms have yielded inconsistent results. One of the reasons for the inconsistency may be that PTSD is highly comorbid with otherdisorders; the observed factor structure might depend on the particularcomorbid disorder. One such disorder is chronic pain. The goal of the present study was to investigate whether PTSD symptom structure differs between pain and pain-free patients scheduled to undergo major surgery. Four hundred and forty-seven patients who were approached 7 to 10 days prior to scheduled surgery completed the PTSD Checklist-Civilian (PCL-C) Version and the Current Pain and Pain History Questionnaire; the lafter was used to divide patients into pain (N = 175) and pain-free (N = 272) groups. Results showed that in pain-free patients, PTSD symptoms were best expressed as 2 symptom clusters (re-experiencing/avoidance; emotional numbing/hyperarousal) accountingtor52.4%o of thevariance. In pain patienG, PTSD symptoms were best expressed as a single symptom cluster accounting for 51