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Objective Continuous glucose monitoring (CGM) has become available for women with type 2 diabetes mellitus (T2DM) or gestational diabetes mellitus (GDM) during pregnancy. The recommended time in range (TIR, blood glucose 70–140 mg/dL) and its correlation with adverse pregnancy outcomes in this group is unknown. Our aim was to compare maternal and neonatal outcomes in pregnant people with T2DM or GDM with average CGM TIR values >70 versus ≤ 70%. Study Design We conducted a retrospective cohort study of all individuals using CGM during pregnancy from January 2017 to June 2022. Individuals with type 1 diabetes mellitus, or those missing CGM or delivery data were excluded. Primary composite neonatal outcome included any of the following: large for gestational age, NICU admission, need for intravenous glucose, respiratory support, or neonatal death. Secondary outcomes included other maternal and neonatal outcomes. Regression models were used to estimate adjusted odds ratio (aOR) and 95% confidence interval (CI). Results During the study period, 141 individuals with diabetes utilized CGM during pregnancy, with 65 (46%) meeting inclusion criteria. Of the study population, 28 (43%) had TIR ≤70% and 37 (57%) had TIR > 70%. Compared with those with TIR > 70%, the primary composite outcome occurred more frequently in neonates of individuals TIR ≤70% (71.4 vs. 37.8%, aOR: 4.8, 95% CI: 1.6, 15.7). Furthermore, individuals with TIR ≤70% were more likely to have hypertensive disorders (42.9 vs. 16.2%, OR: 3.9, 95% CI: 1.3, 13.0), preterm delivery (54 vs. 27%, OR: 3.1, 95% CI: 1.1, 9.1), and cesarean delivery (96.4 vs. 51.4%, OR: 4.6, 95% CI: 2.2, 15.1) compared with those with TIR >70%. Conclusion Among people with T2DM or GDM who utilized CGM during pregnancy, 4 out 10 individuals had TIR ≤70% and, compared with those with TIR > 70%, they had a higher likelihood of adverse neonatal and maternal outcomes. Key Points

OBJECTIVE Despite lack of evidence to support efficacy, activity restriction is one of the most commonly prescribed interventions used for the prevention of preterm birth. We have a departmental policy against the use of activity restriction but many practitioners still prescribe it in an effort to prevent preterm birth. We sought to evaluate the rate and compliance of women who are prescribed activity restriction during pregnancy to prevent preterm birth. STUDY DESIGN This was a single-site retrospective questionnaire study at a tertiary care, academic affiliated medical center. Women with a history of preterm delivery or short cervix were included. Once patients were identified, each patient was contacted and administered a questionnaire. We assessed the rates of activity restriction prescription and compliance. Secondary outcomes included details regarding activity restriction and treatment in pregnancy. Continuous variables were compared with t-test and categorical variables with Chi-square test. The value p

BACKGROUND Recently, the Antenatal Late Preterm Steroids study reported that antenatal corticosteroids administered in the late preterm period (34.0-36.6 weeks' gestation) reduced the rate of neonatal respiratory complications at birth. The utility of this intervention in women with fetal growth restriction remains unclear. OBJECTIVE This study aimed to determine whether administration of antenatal corticosteroids in the late preterm period in pregnancies with growth restriction decreased the need for respiratory support at delivery and other neonatal morbidities. STUDY DESIGN This was a single-center retrospective cohort study that included growth-restricted pregnancies delivered in the late preterm period. Growth restriction was defined as either a diagnosis of fetal growth restriction or small for gestational age by birthweight less than 10%. The primary composite outcome consisted of any 1 of the following occurring in a single neonate: requirement of continuous positive airway pressure or high-flow nasal cannula for 2 hours or more, oxygen requirement with fraction of inspired oxygen of ≥30% for 4 hours or more, mechanical ventilation at any time, stillbirth, or neonatal death. The primary outcome was compared between steroid naive pregnancies and pregnancies exposed to betamethasone in the late preterm period. Univariable and multivariable statistical analysis was performed and P