Mismatch between school furniture dimensions and anthropometric parameters is a risk for spinal deformities in secondary school students in Lagos, Nigeria: a cross-sectional study

Abstract Background A mismatch between school furniture dimensions and anthropometric parameters has been well documented in adolescents, but there is a paucity of data on the impact of these mismatches on the students’ spinal health in Nigeria. This study therefore investigated the relationship of spinal deformities with selected anthropometric parameters and furniture dimensions of adolescents in secondary schools. Methods This study involved 540 apparently healthy students between the ages of 10 and 19 years from 9 public and private secondary schools in Lagos state, Nigeria. The furniture dimensions, anthropometric parameters, and spinal curvature disorders were evaluated using standard protocol. Data was analyzed using SPSS version 20.0 with a level of significance set at p < 0.05. Results Two hundred two (37%) of the participants had abnormal spinal curvatures in varying types and degrees. There was a significant association at p ≤ 0.05 between the presence of spinal deformities and popliteal height to seat height mismatch ( X 2 = 175.67, p = 0.001), hip breadth to seat width mismatch ( X 2 = 293.14, p = 0.00), and shoulder height to backrest height mismatch ( X 2 = 788.16, p = 0.001). Conclusion Anthropometric parameters to furniture dimensions mismatch are significantly associated with the presence of spinal deformities among the students. The main cause of mismatch is using a homogeneous size of furniture for all students in addition to non-consideration of the students’ dimensions during furniture manufacturing.