“…19,67 Of the 75 studies reporting the prevalence of symptoms of depression in patients with IBD, 44 administered the HADS. 11,13,17,24,28,[37][38][39]41,43,44,45,47,[50][51][52]55,57,59,61,[63][64][65]68,[70][71][72]76,78,80,81,83,84,86,90,92,93,95,96,98,[99][100][101]103 The pooled prevalence of symptoms of depression in these studies was 21.6% (95% CI 18.4% to 24.9%; I 2 =96%, p<0.001). Among the remaining articles that used different questionnaires, the lowest pooled prevalence was reported in three studies using the Zung self-rating depression scale (21.0%; 95% CI 6.9% to 40.1%), 19,…”