Skip to main content
. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: J Pain. 2013 May 17;14(9):921–930. doi: 10.1016/j.jpain.2013.03.003

Figure 1. Endogenous Pain-Inhibition.

Figure 1

Positive number represents pain inhibition and negative number represents pain facilitation. IBS is irritable bowel syndrome. Solid grey bars represent endogenous pain-inhibition effect for each group without any covariates. Middle (lined) bars represent endogenous pain-inhibition effect with significant parent-report (PR) psychological variables (child anxiety, child depression, and child somatization) included as covariates. White bars represent endogenous pain-inhibition effect with significant child-report (CR) psychological variables (anxiety & somatization) included as covariates. * indicates significance at p<.05. Although results are no longer significant after covariates are included, a similar pattern of results is present.