Children born by elective CS may face a delay in cognitive and motor development at age 9 months. No increase in total SDQ score was found across all modes of delivery. Further investigation is needed to replicate these findings in other populations and explore the potential biological mechanisms.

Background Maternal chronic hypertension is associated with adverse pregnancy outcomes. Previous studies examined the association between either chronic hypertension or antihypertensive treatment and adverse pregnancy outcomes. We aimed to synthesize the evidence on the effect of chronic hypertension/antihypertensive treatment on adverse pregnancy outcomes. Methods and Results Medline/PubMed, EMBASE, and Web of Science were searched; we included observational studies and assessed the effect of race/ethnicity, where possible, following a registered protocol (CRD42019120088). Random‐effects meta‐analyses were used. A total of 81 studies were identified on chronic hypertension, and a total of 16 studies were identified on antihypertensive treatment. Chronic hypertension was associated with higher odds of preeclampsia (adjusted odd ratio [aOR], 5.43; 95% CI, 3.85–7.65); cesarean section (aOR, 1.87; 95% CI, 1.6–2.16); maternal mortality (aOR, 4.80; 95% CI, 3.04–7.58); preterm birth (aOR, 2.23; 95% CI, 1.96–2.53); stillbirth (aOR, 2.32; 95% CI, 2.22–2.42); and small for gestational age (SGA) (aOR, 1.96; 95% CI, 1.6–2.40). Subgroup analyses indicated that maternal race/ethnicity does not influence the observed associations. Women with chronic hypertension on antihypertensive treatment (versus untreated) had higher odds of SGA (aOR, 1.86; 95% CI, 1.38–2.50). Conclusions Chronic hypertension is associated with adverse pregnancy outcomes, and these associations appear to be independent of maternal race/ethnicity. In women with chronic hypertension, those on treatment had a higher risk of SGA, although the number of studies was limited. This could result from a direct effect of the treatment or because severe hypertension during pregnancy is a risk factor for SGA and women with severe hypertension are more likely to be treated. The effect of antihypertensive treatment on SGA needs to be further tested with large randomized controlled trials.

BACKGROUND: Maternal chronic kidney disease and chronic hypertension have been linked with adverse pregnancy outcomes. We aimed to examine the association between these conditions and adverse pregnancy outcomes over the last 3 decades. OBJECTIVE: We conducted this national cohort study to assess the association between maternal chronic disease (CH, CKD or both conditions) and adverse pregnancy outcomes with an emphasis on the effect of parity, maternal age, and BMI on these associations over the last three decades. We further investigated whether different subtypes of CKD had differing effects. STUDY DESIGN: We used data from the Swedish Medical Birth Register, including 2,788,490 singleton births between 1982 and 2012. Women with chronic kidney disease and chronic hypertension were identified from the Medical Birth Register and National Patient Register. Logistic regression models were performed to assess the associations between maternal chronic disease (chronic hypertension, chronic kidney disease, or both conditions) and pregnancy outcomes, including preeclampsia, in-labor and prelabor cesarean delivery, preterm birth, small for gestational age, and stillbirth. RESULTS: During the 30-year study period, 22,397 babies (0.8%) were born to women with chronic kidney disease, 13,279 (0.48%) to women with chronic hypertension and 1079 (0.04%) to women with both conditions. Associations with chronic hypertension were strongest for preeclampsia (adjusted odds ratio, 4.57; 95% confidence interval, 4.33e4.84) and stillbirth (adjusted odds ratio, 1.65; 95% confidence interval, 1.35e2.03) and weakest for spontaneous preterm birth (adjusted odds ratio, 1.07; 95% confidence interval, 0.96e1.20). The effect of chronic kidney disease varied from (adjusted odds ratio, 2.05; 95% confidence interval, 1.92e2.19) for indicated preterm birth to no effect for stillbirth (adjusted odds ratio, 1.16; 95% confidence interval, 0.95e1.43). Women with both conditions had the strongest associations for in-labor cesarean delivery (adjusted odds ratio, 1.86; 95% confidence interval, 1.49e2.32), prelabor cesarean delivery (adjusted odds ratio, 2.68; 95% confidence interval, 2.18e3.28), indicated preterm birth (adjusted odds ratio, 9.09; 95% confidence interval, 7.61e10.7), and small for gestational age (adjusted odds ratio, 4.52; 95% confidence interval, 3.68e5.57). The results remained constant over the last 3 decades. Stratified analyses of the associations by parity, maternal age, and body mass index showed that adverse outcomes remained independently higher in women with these conditions, with worse outcomes in multiparous women. All chronic kidney disease subtypes were associated with higher odds of preeclampsia, in-labor cesarean delivery, and medically indicated preterm birth. Different subtypes of chronic kidney disease had differing risks; strongest associations of preeclampsia (adjusted odds ratio, 3.98; 95% confidence interval, 2.98e5.31) and stillbirth (adjusted odds ratio, 2.73; 95% confidence interval, 1.13e6.59) were observed in...

Objective: Conduct a systematic review and meta-analysis examining the association between hypertensive disorders of pregnancy (HDP) and risk of asthma, eczema, food allergies and allergic rhinitis in the offspring. Design: A systematic review and random-effects meta-analyses were used to synthesize the published literature. PRISMA guidelines were followed throughout. Two independent reviewers carried out data extraction and quality assessment of included studies. Grading of Recommendations Assessment, Development and Evaluation (GRADE) was used to assess certainty of findings. Data Sources: A systematic search of PubMed, Embase, Web of Science and CINAHL was performed from inception of databases-21 April 2020, supplemented by handsearching reference lists of included articles. Eligibility Criteria: Two reviewers independently reviewed titles, abstracts and fulltext articles. English language, cohort, case-control and cross-sectional published studies examining the association between HDP (primary exposure: pre-eclampsia; secondary exposures: all other HDP) and asthma, eczema, food allergies and allergic rhinitis were included.