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