. Possible risk factor associations were studied by using nonparametric
tests, and sensitivity, specificity, positive and negative predictive, and likelihood ratio values were
calculated for the interview questions about previous low back pain, LBP during menstruation, and trauma
during pregnancy.
. Possible risk factor associations were studied by using nonparametric
tests, and sensitivity, specificity, positive and negative predictive, and likelihood ratio values were
calculated for the interview questions about previous low back pain, LBP during menstruation, and trauma
during pregnancy.
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