Data process and analysis
Logistic regression was used to explore the
relationship between the individual factors, physical
factors and psychosocial factors and the
development of neck pain in teachers. Chi-square
test was used to determine the relationship
between life-long prevalence of neck pain and
individual factors. Multiple logistic regression using
the backward stepwise method (likelihood ratio)
was performed for those risk factors with a P value
%0.25 in order to determine the most significant
risk factors for neck pain among teachers under the
consideration of confounding effect.