highly significantp < 0.001
4 ). The statistical analysis revealed no significant difference in pain outcomes before certification (p = 0.196), whereas the difference after certification was highly significant (p < 0.001).
4 ). The statistical analysis revealed no significant difference in pain outcomes before certification (p = 0.196), whereas the difference after certification was highly significant (p < 0.001).
However, the difference between the certified and non-certified groups did not reach statistical significance (p = 0.172) (Online-Supp.