Background: There is a paucity of evidence regarding long-term outcomes of late preterm (34-36 weeks) and early term (37-38 weeks) delivery.  The objective of this systematic review was to assess long-term cognitive outcomes of children born at these gestations. Methods: Four electronic databases (Medline, Embase, clinicaltrials.gov and PsycINFO) were searched.  Last search was 5 th August 2016.  Studies were included if they reported gestational age, IQ measure and the ages assessed.  The protocol was registered with the International prospective register of systematic reviews (PROSPERO Record CRD42015015472).  Two independent reviewers assessed the studies.  Data were abstracted and critical appraisal performed of eligible papers. Results: Of 11,905 potential articles, seven studies reporting on 41,344 children were included.  For early term births, four studies (n = 35,711) consistently showed an increase in cognitive scores for infants born at full term (39-41 weeks) compared to those born at early term (37-38 weeks) with increases for each week of term (difference between 37 and 40 weeks of around 3 IQ points), despite differences in age of testing and method of IQ/cognitive testing.  Four studies (n = 5644) reporting childhood cognitive outcomes of late preterm births (34 – 36 weeks) also differed in study design (cohort and case control); age of testing; and method of IQ testing, and found no differences in outcomes between late preterm and term births, although risk of bias was high in included studies. Conclusion:  Children born at 39-41 weeks have higher cognitive outcome scores compared to those born at early term (37-38 weeks).  This should be considered when discussing timing of delivery.  For children born late preterm, the data is scarce and when compared to full term (37-42 weeks) did not show any difference in IQ scores.

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Background 23‐seleno‐25‐homo‐tauro‐cholic acid (SeHCAT) scanning to rule out bile acid diarrhea (BAD) in patients with chronic diarrhea has a high yield. Our previous study showed that patients with terminal ileal (TI) Crohn's disease, TI resection, or cholecystectomy were highly likely to have an abnormal scan. As a result, we encouraged clinicians to use a therapeutic trial of a bile acid sequestrant in these patients, instead of scanning. This may have reduced diagnostic yield of the test, so we examined this issue, as well as factors predicting an abnormal scan, in a large cohort of patients referred subsequently. Methods We retrospectively identified 1,071 consecutive patients with chronic diarrhea undergoing SeHCAT scanning at Leeds Teaching Hospitals Trust from 2012 to 2016. We reviewed electronic patient records to obtain information on presenting gastrointestinal symptoms and any proposed risk factors for BAD. BAD was categorized according to subtype and severity. Key Results As expected, indications for scanning changed between 2012 and 2016, with a significant reduction in referrals with TI Crohn's disease or resection year‐on‐year (P < 0.001). Despite this, 457 (42.7%) patients had BAD and there was no downward trend in yield of SeHCAT during the 5 year period (P = 0.39). Overall, 51.6% had type II BAD, 36.1% type III, and 12.3% type I. BAD was mild in 31.7%, moderate in 34.4%, and severe in 33.9%. In total, 653 (61.0%) patients had no known risk factors, other than chronic diarrhea, but 233 (35.7%) of these individuals had BAD, and in 143 (61.4%), this was moderate or severe. Conclusions and Inferences Despite reduced referrals for SeHCAT scanning in those with clear risk factors for BAD, the yield remained > 40%. One‐third of those without known risk factors had BAD.