[Investigation on scoliosis incidence among 24,130 school children].

Through the screening on scoliosis among 24,130 school children in Hu Guan County, Shanxi Province, it showed that the forward-bending test was positive in 1,794 children (7.4 per cent), with male 3.64 per cent and female 3.8 per cent. The hump inclination angles that were more than 4 degrees were found in 665 children (2.75 per cent). The Cobb angles that were more than 10 degrees were found in 347 children. The incidence rate was 1.44 per cent, with a male to female ratio of 1:1.17. Most of them were idiopathic scoliosis.