Validation of the Simplified Chinese Version of the Body Image Disturbance Questionnaire-Scoliosis.
METHODS
Cross-cultural adaptation and validation of the Body Image Disturbance Questionnaire-Scoliosis (BIDQ-S).


OBJECTIVE
The aim of this study was to validate the Chinese version of BIDQ-S (C-BIDQ-S) in adolescent idiopathic scoliosis (AIS) patients in Mainland China.


BACKGROUND
A modified version of the Body Image Disturbance Questionnaire instrument has been validated in AIS patients (BIDQ-S) to assess the perception of spinal appearance and psychological disturbance. However, there is no culturally adapted, reliable, and validated BIDQ-S for the Chinese population.


METHODS
The BIDQ-S was translated into simplified Chinese, and the cross-cultural adaptation of the original BIDQ-S was performed according to international guidelines. A total of 100 AIS patients were recruited into this study. Validation including reliability, internal consistency, and convergent validity was evaluated by comparing the C-BIDQ-S with Scoliosis Research Society (SRS)-22 and Spinal Appearance Questionnaire (SAQ) instruments. The relationship between C-BIDQ-S score and patient characteristics was also assessed.


RESULTS
Internal consistency for the C-BIDQ-S was satisfactory with a Cronbach alpha value of 0.877. The construct validity test demonstrated significant correlations between the C-BIDQ-S score and all SRS-22 domains as well as between the C-BIDQ-S score and most of SAQ domains. Although the C-BIDQ-S score was not correlated with age or BMI, patients with Cobb angle >40° presented a significantly higher (poorer) C-BIDQ-S score.


CONCLUSIONS
The Simplified Chinese version of BIDQ-S showed good internal consistency, strong psychometric properties, and satisfactory reliability. This concise questionnaire is suitable for widespread use in Mainland China.
*Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China †Department of Orthopaedic Surgery, Mount Sinai Beth Israel Medical Center, New York.
Hongda
H
Bao
Peng
P
Yan
Baron
B
Lonner
Yong
Y
Qiu
Yuan
Y
Ren
Zezhang
Z
Zhu
Zhen
Z
Liu
Feng
F
Zhu
D000293:Adolescent; D057215:Body Dysmorphic Disorders / Q000523:psychology*; D002681:China; D015331:Cohort Studies; D005260:Female; D006801:Humans; D011594:Psychometrics / Q000379:methods* / Q000592:standards*; D012600:Scoliosis / Q000523:psychology*; D011795:Surveys and Questionnaires; D014177:Translations