“…Of the included studies, one is a prospective study ( 35 ), while the remainder are retrospective studies ( 17 , 21 , 22 , 36 – 41 ). Depression was identified through clinician-rated scales [National Institute of Mental Health Diagnostic Interview Schedule (DIS), Version III ( 36 ); DSM-IV-TR ( 35 ) and International Classification of Disease, Ninth Revision (ICD-9) and Tenth Revision (ICD-10) ( 41 , 42 )], self-rated scales [HADS ( 21 ), CES-D ( 38 ), Beck Depression Inventory scale ( 22 )], and self-reported physician diagnosis ( 17 , 37 , 40 ). NAFLD was diagnosed through liver biopsy in four studies ( 17 , 21 , 35 , 40 ) and imaging techniques in four studies ( 17 , 22 , 38 , 40 ) and identified through ICD-9 and ICD-10 codes in two studies ( 41 , 42 ).…”