AUTHOR=Yan Bin , Lu Xinhai , Qiu Qihua , Nie Guohui , Huang Yeen 

TITLE=Association Between Incorrect Posture and Adolescent Idiopathic Scoliosis Among Chinese Adolescents: Findings From a Large-Scale Population-Based Study

JOURNAL=Frontiers in Pediatrics

VOLUME=Volume 8 - 2020

YEAR=2020

URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2020.00548

DOI=10.3389/fped.2020.00548

ISSN=2296-2360

ABSTRACT=Objectives: Adolescent idiopathic scoliosis (AIS) affects between 1%-4% of adolescents and severe curvature may related to their adverse long-term outcomes. However, whether the change in body appearance is related to AIS remains largely unclear. We aimed to explore the association between incorrect posture and AIS among Chinese adolescents.
Methods: Data was collected from a population-based (595,057) school scoliosis screening program in China. A sample of 3,871 adolescents were classified as cases with a diagnosed as radiological lateral Cobb angle≥10°, and 3,987 control subjects with Cobb angle<10° were randomly selected from the screening system. Adolescents were accessed with demographic information and incorrect posture measured by visual inspection of physical signs, Adam’s forward bending test (FBT), and the angle of trunk rotation (ATR). Logistic regression (LR) models were used to examine the associations.
Results: Multivariate LR showed that shoulder-height difference, scapula tilt, lumbar concave, pelvic tilt were associated with AIS. Adolescents with angel of thoracic rotation≥5° (adjusted odds ratio (AOR)=5.33-14.67, P<0.001), thoracolumbar rotation≥5° (AOR=4.61-5.79, P<0.001), or lumbar rotation≥5° (AOR=7.49-7.85, P<0.001) were at especially higher risk for AIS than those with ATR<5°.  
Conclusions: Incorrect posture may be the potential risk factors for developing AIS, and ATR≥5° was an important indicator for predicting the occurrence of scoliosis. Early monitoring of incorrect posture for school adolescents should be considered as a routine intervention to effectively identify the progress of scoliosis.