Study selection
Among 1592 unique studies (1572 from databases and 20 from hand-searching) identified from our search, there were no studies that met the exact criteria of our primary aim that investigated the effects of early-term birth on cognitive or academic outcomes in LGA babies. For our secondary aim, a total of 68 articles were considered eligible and included in this systematic review after two-stage screening, as shown in Figure 1. Among the final included studies that assessed cognitive or academic outcomes, 11 studies (see Table S3) only investigated the effect of LGA,35-45 51 studies (see Table S2) only investigated the effect of early-term delivery (37+0w-38+6w),13, 23-26, 29, 46-90 and 6 studies (see Table S1) explored the effects of both exposures simultaneously but independently.28, 30, 91-94