BMJ : British medical journal
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Review Meta Analysis
Hyperglycaemia and risk of adverse perinatal outcomes: systematic review and meta-analysis.
To assess the association between maternal glucose concentrations and adverse perinatal outcomes in women without gestational or existing diabetes and to determine whether clear thresholds for identifying women at risk of perinatal outcomes can be identified. ⋯ PROSPERO CRD42013004608.
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To estimate how far changes in the prevalence of electronic cigarette (e-cigarette) use in England have been associated with changes in quit success, quit attempts, and use of licensed medication and behavioural support in quit attempts. ⋯ Changes in prevalence of e-cigarette use in England have been positively associated with the success rates of quit attempts. No clear association has been found between e-cigarette use and the rate of quit attempts or the use of other quitting aids, except for NRT obtained on prescription, where the association has been negative.Study registration The analysis plan was preregistered (https://osf.io/fbgj2/).