Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: General Orthopaedics
Abstract number: 23253
COMPUTATIONAL PSYCHOLOGICAL STUDY OF BRIEF SCALE FOR
PSYCHIATRIC PROBLEMS IN ORTHOPAEDIC PATIENTS (BS-POP) FOR
PATIENTS WITH CHRONIC LOW BACK PAIN (CLBP)
Katsuhiro YOSHIDA 1 , Miho SEKIGUCHI 1 , Koji OTANI 1 , Shi-ichi KONNO 1 , Hirohumi
MASHIKO 1 , Harumi SHIOTA 1 , Takahumi WAKITA 2
1 Fukushima Medical University, Fukushima (JAPAN), 2 Kansai University, Osaka
(JAPAN)
Introduction: We developed the Brief Scale for Psychiatric Problems in Orthopaedic
Patients (BS-POP) (doctor and patient versions). The present study aimed to
proactively verify the factorial validity, internal consistency, reproducibility, criterionrelated
validity and responsiveness of the BS-POP with regard to chronic low back
pain patients. Methods: Subjects comprised 188 chronic low back pain patients.
During the first test, the BS-POP, Minnesota Multiphasic Personality Inventory
(MMPI), Profile of Mood States (POMS), 36-Item Short-Form Health Survey version 2
(SF-36 v2) and Roland-Morris Disability Questionnaire (RDQ) were conducted. In the
second test, patients were asked to complete the BS-POP in order to verify BS-POP
reproducibility. The BS-POP, POMS, SF-36 v2 and RDQ for the third test were
conducted to determine the responsiveness. Results: Factor analysis demonstrated
factorial validity of the BS-POP including 1-factor structure. Internal consistency was
confirmed by Cronbach’s reliability coefficient of 0.754. The correlation coefficients
for the retests were r = 0.920 (doctor version) and r = 0.853 (patient version),
showing reproducibility. Criterion-related validity was confirmed through strong
association with the psychosocial factors of the SF-36, the MMPI, and the POMS. In
comparison with the first test, the total crude scores for BS-POP in the third test were
significantly lower. Moreover, the crude RDQ scores and the psychosocial factors of
the SF-36 v2 significantly improved, confirming responsiveness to treatment.
Discussion: The present findings indicate that the BS-POP possesses sufficient
reliability regarding computational psychology. The BS-POP constitutes a tool
enabling orthopaedists themselves to easily identify psychiatric problems in
orthopaedic patients.
212