Figure 1From: Prevalence of mood and anxiety disorder in self reported irritable bowel syndrome (IBS). An epidemiological population based study of women Dose response association between current symptom load of anxiety and depression (GHQ-12), and percent reporting IBS (tests for trend p < .001). Dose response association for whole range (p < .001), and also excluding the two last centiles of the GHQ distribution (p = .040 and p = .008 for current and lifetime respectively). The apparent curve-linearity in the GHQ IBS association was statistically significant (p = .021 and p = .019 for current and lifetime respectively).Back to article page