“…Literature data pertaining to capsule endoscopy are primarily focused toward disease diagnosis with information regarding GI transit commonly reported as a secondary outcome. Such studies typically include patients with known or suspected GI disease for indications such as obscure GI bleeding, undiagnosed abdominal pain, suspected Crohn's disease, ulcerative colitis, celiac disease, and small bowel tumors (Fireman et al, 2007). Based on 11 capsule endoscopy studies (Fireman et al, 2005(Fireman et al, , 2007Velayos Jiménez et al, 2005;Ge et al, 2007;Tokuhara et al, 2010;Nuutinen et al, 2011;Robinson et al, 2011;Westerhof et al, 2012;Yazici et al, 2012;OikawaKawamoto et al, 2013;Ou et al, 2014), which provided information on 16 unique subject groups with mean ages ranging from 2.9 to 64 years, a meta-regression was performed using a similar methodology as described previously.…”