“…The main characteristics of the included studies are presented in Table 1, and the variables adjusted and/or matched in each study are presented in eTable 3 in the Supplement. Of the 61 included studies, 27 studies 20,23,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,83 reported on the association of cesarean delivery with a diagnosis of ASD (59 795 cases), 13 studies 19,24,42,52,55,56,57,58,59,60,61,62,63 with attention-deficit/hyperactivity disorder (ADHD) (92 718 cases), 3 studies 42,64,65 with intellectual disabilities (485 cases), 3 studies 22,66,67 with tic disorders (6181 cases), 4 studies 25,26,68,69 with eating disorders (4550 cases), 3 studies 21,70,71 with obsessive-compulsive disorder (OCD; 7295 cases), 5 studies 72,73,74,75,76 with major depression or affective psychoses (8561 cases), and 7 studies 73,77,78,79,80,81,82 with nonaffective psychoses (7195 cases). Study quality was defined as high for 18 of 22 cohorts (82%) and 20 of 40 c...…”