Sociodemographic determinants of COVID-19 vaccination in adolescents in Stockholm, Sweden.

Introduction: Limited data exists on sociodemographic differences in vaccination coverage against COVID-19 among adolescents. This study investigated the association of sociodemographic factors and vaccination coverage of adolescents aged 12 to 17 years over the period of the general vaccination recommendation in Stockholm County, Sweden.

Method: We conducted a population-based retrospective cross-sectional study of vaccine uptake of at least one dose of a COVID-19 vaccine up until 31 October 2022.

Centralisation of extremely preterm births and decreased early postnatal mortality in Sweden, 2004-2007 versus 2014-2016.

Aim: We evaluated the increased centralisation of extremely preterm (EPT) births in Sweden in relation to the changes in mortality and morbidity.

Methods: Population-based data covering Swedish live births from 22 + 0 to 26 + 6 weeks of gestation during 2004-2007 and 2014-2016 were analysed for associations between time-period, birth within (inborn) or outside (outborn) regional centres, and outcomes.

Results: Among 1626 liveborn infants, 703 were born in 2004-2007 and 923 in 2014-2016.

A nationwide cohort study of inflammatory bowel disease, histological activity and fracture risk.

Background: Individuals with inflammatory bowel disease (IBD) are at increased risk of fracture. It is unclear if this risk varies by recent histological activity.

Aims: To determine the fracture risk in IBD during periods with and without histological inflammation.

Breastfed infants exposed to lamotrigine faced a low risk of toxic effects.

Aim: We aimed to investigate plasma lamotrigine concentrations and clinical effects in infants exposed to lamotrigine through breastfeeding.

Methods: This was a retrospective study of mother-infant dyads in a clinical follow-up programme in Stockholm, Sweden. Data were collected from medical records.

Family History of Diabetes and Clinical Characteristics in Children at Diagnosis of Type 1 Diabetes-A Swedish Population-Based Study.

Objective: To compare the prevalence of parental diabetes between children with and without type 1 diabetes (T1D), and to compare clinical characteristics at diagnosis of T1D in children with, versus without, a family history of diabetes.

Research Design And Methods: Parental diabetes among children with T1D was compared with a general population cohort. Clinical characteristics were compared by family history of diabetes in parents and grandparents of 3,603 children with T1D using relative risk (RR) and ANOVA.

Bidirectional association between inflammatory bowel disease and type 1 diabetes: a nationwide matched cohort and case-control study.

Background: Co-occurrence of inflammatory bowel disease (IBD) and type 1 diabetes (T1D) has been linked to poor clinical outcomes, but evidence on their bidirectional associations remain scarce. This study aims to investigate their bidirectional associations.

Methods: A nationwide matched cohort and case-control study with IBD patients identified between 1987 and 2017.

Exploring the determinants of under-five mortality and morbidity from infectious diseases in Cambodia-a traditional and machine learning approach.

Cambodia has made progress in reducing the under-five mortality rate and burden of infectious diseases among children over the last decades. However the determinants of child mortality and morbidity in Cambodia is not well understood, and no recent analysis has been conducted to investigate possible determinants. We applied a multivariable logistical regression model and a conditional random forest to explore possible determinants of under-five mortality and under-five child morbidity from infectious diseases using the most recent Demographic Health Survey in 2021-2022.

Diverticular disease and risk of incident major adverse cardiovascular events: A nationwide matched cohort study.

Background: An increased risk of cardiovascular disease (CVD) has been reported in patients with diverticular disease (DD). However, there are knowledge gaps about specific risks of each major adverse cardiovascular event (MACE) component.

Methods: This nationwide cohort study included Swedish adults with DD (1987-2017, N=52,468) without previous CVD.

Cooling during transportation of newborns with hypoxic ischemic encephalopathy using phase change material mattresses in low-resource settings: a randomized controlled trial in Hanoi, Vietnam.

Objective: To determine the effectiveness of phase-change-material mattress (PCM) during transportation of newborns with hypoxic ischemic encephalopathy (HIE).

Study Design: Randomized controlled trial of newborns with HIE from June 2016 to December 2019. Patients were randomized to transport with PCM or without PCM (control) when transferred to a cooling center in northern Vietnam.

Allergy in Young Adults Associates with Elevated Fractional Exhaled Nitric Oxide Levels and IgE-Verified Parental Allergy but Is Confounded by Self-Reported Symptoms.

Introduction: Knowledge of IgE-verified allergy in young adults is limited as most studies are based on self-reported data. Allergic heredity is important in allergy development in early life, but less is known about the hereditary component later in life. The aim was to investigate IgE-verified and self-reported allergy and asthma at 20 years of age in association to parental allergy and environmental factors.

Enablers and barriers to implementing cholera interventions in Nigeria: a community-based system dynamics approach.

Nigeria accounts for a substantial cholera burden globally, particularly in its northeast region, where insurgency is persistent and widespread. We used participatory group model building workshops to explore enablers and barriers to implementing known cholera interventions, including water, sanitation and hygiene, surveillance and laboratory, case management, community engagement, oral cholera vaccine, and leadership and coordination, as well as exploring leverage points for interventions and collaboration. The study engaged key cholera stakeholders in the northeastern States of Adamawa and Bauchi, as well as national stakeholders in Abuja.

Infant urinary tract infection in Sweden - A national study of current diagnostic procedures, imaging and treatment.

Background: Urinary tract infection (UTI) in infants is a common, potentially life-threatening bacterial infection, and must be managed carefully through the entire chain of care from diagnosis, choice of treatment, follow-up and risk stratification of future complications. This Swedish nationwide study of infant UTI was conducted to evaluate the current management of infant UTI, yield of investigations and the Swedish UTI guidelines' ability to detect abnormalities of importance in the urinary tract.

Methods: Infants < 1 year with a first episode of UTI were included in a prospective multicenter study.

Comparative Risk of Serious Infection With Vedolizumab vs Anti-Tumor Necrosis Factor in Inflammatory Bowel Disease: Results From Nationwide Swedish Registers.

Introduction: We aimed to assess the risk of serious infection in patients with inflammatory bowel disease (IBD) treated with vedolizumab compared with those treated with anti-tumor necrosis factors (TNF) and the general population.

Methods: In this Swedish cohort study, treatment episodes were identified from nationwide health registers. We used Cox regression with propensity score-matched cohorts to estimate hazard ratios (HRs) for incident serious infections, defined as infections requiring hospital admission.

Improved Air Quality and Asthma Incidence from School Age to Young Adulthood: A Population-based Prospective Cohort Study.

The benefits of improved air quality on asthma remain understudied. Our aim was to investigate associations of changes in ambient air pollution with incident asthma from school age until young adulthood in an area with mostly low air pollution levels. Participants in the BAMSE (Swedish abbreviation for Children, Allergy, Environment, Stockholm, Epidemiology) birth cohort from Stockholm without asthma before the 8-year follow-up were included ( = 2,371).

Penicillin V versus amoxicillin for pneumonia in children-a Swedish nationwide emulated target trial.

Objectives: Although most countries recommend amoxicillin for paediatric pneumonia, there is a long tradition of treatment with penicillin V (PcV) in Sweden, thus not empirically covering Haemophilus influenzae. There are, however, large regional differences in treatment practice. The aim was to compare clinical outcomes (treatment failure and severe complications), in children aged 1-59 months treated with PcV vs.

School holidays and respiratory syncytial virus transmission in Sweden: An interrupted time series analysis.

Aim: Respiratory syncytial virus (RSV) represents a significant cause of morbidity for children worldwide, especially for newborns. As RSV vaccines are not routinely used for children yet, non-pharmaceutical interventions (NPIs) represent the main strategy for prevention. The objective of this study was to investigate the correlation between school holidays and RSV transmission.

Effectiveness and Safety of Ustekinumab in Pediatric Ulcerative Colitis: A Multi-center Retrospective Study from the Pediatric IBD Porto Group of ESPGHAN.

Background And Objectives: Current data on ustekinumab therapy in children with ulcerative colitis (UC) or unclassified inflammatory bowel disease (IBDU) are limited. We aimed to evaluate the effectiveness and safety of ustekinumab in pediatric UC and IBDU.

Methods: This multicenter retrospective study included 16 centers affiliated with the IBD Interest and Porto groups of ESPGHAN.

Risk of Kidney Failure in Patients With Inflammatory Bowel Disease Undergoing Colectomy: A Nationwide Cohort Study.

Background & Aims: Inflammatory bowel disease (IBD) is frequently accompanied by kidney complications. Potential triggers or subpopulations at high-risk of kidney problems are not well-elucidated. We hypothesized that surgical interventions, specifically colectomy, might in part explain this risk.

Risk of heart failure in inflammatory bowel disease: a Swedish population-based study.

Background And Aims: Dysregulation of inflammatory and immune responses has been implicated in the pathogenesis of heart failure (HF). But even if inflammation is a prerequisite for inflammatory bowel disease (IBD), little is known about HF risk in IBD.

Methods: In this Swedish nationwide cohort, patients with biopsy-confirmed IBD were identified between 1969 and 2017 [n = 81 749, Crohn's disease (CD, n = 24 303), ulcerative colitis (UC, n = 45 709), and IBD-unclassified (IBD-U, n = 11 737)].

Asthma Is Associated With Increased Sickness Absence Among Young Adults.

Background: There is limited knowledge about how asthma affects sickness absence in young adulthood.

Objective: To examine how asthma and different asthma phenotypes affect sickness absence among young adults and potential modifying factors. A secondary aim was to estimate productivity losses related to sickness absence for asthma.