marginally significantp = 0.061
Specifically, at the 16th percentile of N80, pain duration strongly predicted disability (β = 0.285, 95% CI [0.116, 0.453], p = 0.002); at the 50th percentile, the effect was moderate and marginally significant (β = 0.088, 95% CI [−0.004, 0.181], p = 0.061); and at the 84th percentile, the association was negligible and not significant (β = −0.028, 95% CI [−0.158, 0.102], p = 0.666).