Objective: To understand the current situation and influencing factors of scoliosis in 12-year-old students from Inner Mongolia Autonomous Region, so as to provide scientific basis for accurate prevention and control of abnormal spinal curvature. Methods: From October to November 2021, a total of 18 399 students aged 12 were selected by region and school level by stratified random cluster sampling method, and spinal curvature screening and questionnaire survey of common diseases and health influencing factors among students were carried out. Chi squared test was used for single factor analysis, and binary Logistic regression model was used for multi factor analysis. Results: A total of 397 students (2.2%) were detected with abnormal curvature of the spine, including 368 students (2.0%) with scoliosis. Among them, 205 cases were in the lumbar thoracic segment with a detection rate of 1.1%, 173 cases were in the thoracic segment with a detection rate of 0.9%, and 141 cases were in lumbar thoracic segment with a detection rate of 0.8%. Binary Logistic regression analysis showed that urban area, economic area(moderate), attending tutorial classes before primary school and class seats never changed regularly were positively correlated with the occurrence of scoliosis among 12 year old students ( OR =1.95,1.67,1.76,1.71, P <0.05). Obesity, attending an average of 3 or 4 physical education classes per week, attending physical fitness and beauty classes before primary school were negatively correlated with the occurrence of scoliosis among 12 year old students ( OR =0.69,0.31,0.36,0.71, P <0.05). Conclusion The prevalence of scoliosis among 12-year-old students in Inner Mongolia Autonomous Region is not optimistic. It should pay attention to the prevention and control of scoliosis in students before the age of 12, actively prevent the occurrence and progress of scoliosis.

Objective: To understand prevalence and influencing factors of abnormal spinal curvature in primary and secondary school students aged 10-14 years in Inner Mongolia, and to provide reference for relevant measures. Methods: A total of 92 094 primary and secondary school students aged 10-14 years were selected by multi stage cluster sampling, and were investigated with questionnaire. Results: A total of 1 957 participants (2.13%) with abnormal spinal curvature were detected, including 1 768( 90.34 %) with scoliosis. Significant differences in the detection rate of abnormal spinal curvature were observed among students with different myopia status and posture of sitting and standing ( χ 2=23.82, 9.84, P <0.05). Logistic regression analysis showed that different ethnic groups, monitoring points, age and area were main factors for risk of spinal curvature abnormalities in primary and secondary school students aged 10-14 years; good nutritional status, left right rotation of class seats, seat height adjustment according to height were associated with lower rate of spinal curvature abnormalities ( P <0.05). Conclusion Various measures should be taken simultaneously to reduce the prevalence of abnormal spinal curvature in primary and middle school students aged 10-14 years.