biostudies-literatureMubanga MVetenskapsrådetHjärt-LungfondenStiftelsen Frimurare Barnhuset i Stockholme13904https://www.ebi.ac.uk/biostudies/studies/S-EPMC10107099biostudies-literatureUnknown34(1)<h4>Background</h4>Atopic dermatitis is a common chronic childhood disease associated with significant morbidity and healthcare costs. There is a known association between caesarean section and asthma, but the relationship between caesarean section and offspring atopic dermatitis remains uncertain.<h4>Methods</h4>We conducted a register-based nationwide cohort study including children born in Sweden between January 2006 and December 2018. Data on health and socioeconomic variables were extracted from the national registers for children aged ≤5 years. Time-to-event analyses were used to calculate hazard ratios (HR) with 95% confidence intervals (CI) adjusting for confounders and familial factors.<h4>Results</h4>1,399,406 children were included (6,029,542 person-years at risk). Atopic dermatPediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and ImmunologyMode of delivery and offspring atopic dermatitis in a Swedish nationwide study.PMC1010709920210416222018‐02640Lundholm CRohlin ESMubanga MAlmqvist CRejno GBrew BKfalseMode of delivery and offspring atopic dermatitis in a Swedish nationwide study.<h4>Background</h4>Atopic dermatitis is a common chronic childhood disease associated with significant morbidity and healthcare costs. There is a known association between caesarean section and asthma, but the relationship between caesarean section and offspring atopic dermatitis remains uncertain.<h4>Methods</h4>We conducted a register-based nationwide cohort study including children born in Sweden between January 2006 and December 2018. Data on health and socioeconomic variables were extracted from the national registers for children aged ≤5 years. Time-to-event analyses were used to calculate hazard ratios (HR) with 95% confidence intervals (CI) adjusting for confounders and familial factors.<h4>Results</h4>1,399,406 children were included (6,029,542 person-years at risk). Atopic dermat2023-01-01T00:00:00Z2023 Jan2025-04-27T02:37:20.506Z2025-04-06T18:38:11.902ZS-EPMC101070993670504010.1111/pai.13904