After credibility assessment, this study indicated three variants (rs2066844, rs2066845, rs2066847) in NOD2, two variants (rs11209026, rs7517847) in IL23R, one variant (rs2241880) in ATG16L1, two variants (rs12521868, rs26313667) in the IBD5 region and one variant (rs1800629) in TNF-α represented the most credible findings and were referred as highly-credibly associated with paediatric IBD. The gene discussed is ATG16L1; the disease is inflammatory bowel disease.