Stefan Nygaard Hansen
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View article: Correction: Cardiorespiratory fitness after correction of pectus excavatum: a systematic review with meta-analysis
Correction: Cardiorespiratory fitness after correction of pectus excavatum: a systematic review with meta-analysis Open
View article: Sarcopenia and survival in surgically treated non-small cell lung cancer: A systematic review and meta-analysis
Sarcopenia and survival in surgically treated non-small cell lung cancer: A systematic review and meta-analysis Open
The included studies exhibited methodological variations, particularly in study population and definition of sarcopenia. There was an association between sarcopenia and reduced overall survival in the surgically treated NSCLC population, w…
View article: Early prediction of subsequent peg‐asparaginase inactivation in acute lymphoblastic leukaemia patients—A <scp>NOPHO ALL2008</scp> study
Early prediction of subsequent peg‐asparaginase inactivation in acute lymphoblastic leukaemia patients—A <span>NOPHO ALL2008</span> study Open
Summary Polyethylene glycol (peg)‐asparaginase plays a crucial role in acute lymphoblastic leukaemia (ALL) treatment, yet its associated toxicity often leads to treatment discontinuation, elevating relapse risk. Hypersensitivity with inact…
View article: Cardiorespiratory fitness after correction of pectus excavatum: a systematic review with meta-analysis
Cardiorespiratory fitness after correction of pectus excavatum: a systematic review with meta-analysis Open
Pectus excavatum or funnel chest is the most prevalent chest wall deformity. Surgical correction is the treatment of choice which is predominantly performed on children and adolescents, often with significant surgical complication rates. W…
View article: Cross-setting replication of the associations between maternal health and autism
Cross-setting replication of the associations between maternal health and autism Open
Background Autism spectrum disorder (ASD) is a neurodevelopmental condition with early-life origins. Maternal health conditions during pregnancy have been linked to autism risk, but most studies focus on single populations, limiting genera…
View article: Impact of washout duration to account for left truncation in register-based epidemiological studies: a case study on estimating the risk of mental disorders
Impact of washout duration to account for left truncation in register-based epidemiological studies: a case study on estimating the risk of mental disorders Open
Background Washout periods can identify and exclude prevalent cases from analyses based on administrative registers with left truncation, but the impact of washout duration on estimates is unknown. We estimated risks of clinically-diagnose…
View article: Cohort profile: The BiCoVac cohort - a nationwide Danish cohort to assess short and long-term symptoms following COVID-19 vaccination
Cohort profile: The BiCoVac cohort - a nationwide Danish cohort to assess short and long-term symptoms following COVID-19 vaccination Open
View article: Familial confounding in the associations between maternal health and autism
Familial confounding in the associations between maternal health and autism Open
View article: Does health anxiety and vaccine concern predict self-reported adverse events following COVID-19 vaccination?–A Danish national cohort study
Does health anxiety and vaccine concern predict self-reported adverse events following COVID-19 vaccination?–A Danish national cohort study Open
View article: Female Infertility and Neurodevelopmental Disorders in Children: associations and evidence for familial confounding in Denmark
Female Infertility and Neurodevelopmental Disorders in Children: associations and evidence for familial confounding in Denmark Open
IMPORTANCE Existing research suggests the impact of infertility on the risk of neurodevelopmental disorders in children, however, studies to date have failed to separate the impact of male and female infertility, often blurring the lines w…
View article: COVID-19 vaccination and involuntary movements: A longitudinal panel study
COVID-19 vaccination and involuntary movements: A longitudinal panel study Open
View article: Pigs’ physiological need for zinc from weaning to 30 kg:Evaluating optimal dietary levels and the impact on growth and health under Danish production conditions
Pigs’ physiological need for zinc from weaning to 30 kg:Evaluating optimal dietary levels and the impact on growth and health under Danish production conditions Open
View article: Variance estimation for average treatment effects estimated by g-computation
Variance estimation for average treatment effects estimated by g-computation Open
The average treatment effect is used to evaluate effects of interventions in a population. Under certain causal assumptions, such an effect may be estimated from observational data using the g-computation technique. The asymptotic properti…
View article: Increase in peg-asparaginase clearance as a predictor for inactivation in patients with acute lymphoblastic leukemia
Increase in peg-asparaginase clearance as a predictor for inactivation in patients with acute lymphoblastic leukemia Open
Asparaginase is an essential component of acute lymphoblastic leukemia (ALL) therapy, yet its associated toxicities often lead to treatment discontinuation, increasing the risk of relapse. Hypersensitivity reactions include clinical allerg…
View article: Outdoor <i>Alternaria</i> and <i>Cladosporium</i> spores and acute asthma
Outdoor <i>Alternaria</i> and <i>Cladosporium</i> spores and acute asthma Open
Background Outdoor Alternaria and Cladosporium spores are ubiquitous. Few studies have assessed their impact on asthma hospitalizations providing conflicting results, mainly focused on vulnerable paediatric populations. We aimed to study t…
View article: Maternal Pre-Pregnancy BMI, Offspring Adiposity in Late Childhood, and Age of Weaning: A Causal Mediation Analysis
Maternal Pre-Pregnancy BMI, Offspring Adiposity in Late Childhood, and Age of Weaning: A Causal Mediation Analysis Open
Infant feeding practices have been hypothesized to influence offspring’s body mass index (BMI) later in life, and women with overweight or obesity tend to wean their infants earlier than women with healthy BMI. We, therefore, aimed to inve…
View article: Immediate adverse reactions following COVID-19 vaccination among 16–65-year-old Danish citizens
Immediate adverse reactions following COVID-19 vaccination among 16–65-year-old Danish citizens Open
View article: Childhood socioeconomic position and cardiometabolic risk in young adulthood- the impact of mental health
Childhood socioeconomic position and cardiometabolic risk in young adulthood- the impact of mental health Open
Background Low socioeconomic position in childhood is associated with greater cardiometabolic disease risk later in life. The aim of the current study is to examine the mediating impact of mental health on the association between childhood…
View article: The effect of air quality on sleep and cognitive performance in school children aged 10–12 years: a double-blinded, placebo-controlled, crossover trial
The effect of air quality on sleep and cognitive performance in school children aged 10–12 years: a double-blinded, placebo-controlled, crossover trial Open
Objectives To investigate the effect of CO 2 during sleep on next-morning cognitive performance in young schoolchildren, the authors performed a double-blind fully balanced crossover placebo-controlled study. Material and Methods The autho…
View article: Maternal diagnoses around pregnancy and risk of autism spectrum disorder – A population-based study
Maternal diagnoses around pregnancy and risk of autism spectrum disorder – A population-based study Open
Background There is growing interest in the potential effects of maternal health in pregnancy on the risk for autism spectrum disorder (ASD) in the offspring. Studies to date have examined only a few maternal diagnoses in pregnancy and did…
View article: Multiple health complaints in preadolescence and hospital contacts during adolescence: a prospective cohort study
Multiple health complaints in preadolescence and hospital contacts during adolescence: a prospective cohort study Open
View article: Temporal and regional differences in the incidence of hospital‐diagnosed endometriosis: a Danish population‐based study
Temporal and regional differences in the incidence of hospital‐diagnosed endometriosis: a Danish population‐based study Open
Introduction Due to diagnostic challenges, normalization of symptoms and an overall lack of awareness among both patients and physicians, endometriosis is an underdiagnosed disease. This can result in delayed treatment and potentially wors…
View article: Asparaginase enzyme activity levels and toxicity in childhood acute lymphoblastic leukemia: a NOPHO ALL2008 study
Asparaginase enzyme activity levels and toxicity in childhood acute lymphoblastic leukemia: a NOPHO ALL2008 study Open
Asparaginase treatment is a mainstay in contemporary treatment of acute lymphoblastic leukemia (ALL), but substantial asparaginase-related toxicity may lead to jeopardized protocol compliance and compromises survival. We investigated the a…
View article: Administrative faktorer forklarer stor del af stigning i autismehyppigheden
Administrative faktorer forklarer stor del af stigning i autismehyppigheden Open
View article: On the assumption of independent right censoring
On the assumption of independent right censoring Open
Various assumptions on a right‐censoring mechanism to ensure consistency of the Kaplan–Meier and Aalen–Johansen estimators in a competing risks setting are studied. Specifically, eight different assumptions are seen to fall in two categori…
View article: Association of Genetic and Environmental Factors With Autism in a 5-Country Cohort
Association of Genetic and Environmental Factors With Autism in a 5-Country Cohort Open
Based on population data from 5 countries, the heritability of ASD was estimated to be approximately 80%, indicating that the variation in ASD occurrence in the population is mostly owing to inherited genetic influences, with no support fo…
View article: Recurrence Risk of Autism in Siblings and Cousins: A Multinational, Population-Based Study
Recurrence Risk of Autism in Siblings and Cousins: A Multinational, Population-Based Study Open
View article: Parental Age and Differential Estimates of Risk for Neuropsychiatric Disorders: Findings From the Danish Birth Cohort
Parental Age and Differential Estimates of Risk for Neuropsychiatric Disorders: Findings From the Danish Birth Cohort Open
View article: Association of Genetic and Environmental Factors With Autism in a 5-Country Cohort
Association of Genetic and Environmental Factors With Autism in a 5-Country Cohort Open
Importance The origins and development of autism spectrum disorder (ASD) remain unresolved. No individual-level study has provided estimates of additive genetic, maternal, and environmental effects in ASD across several countries. Object…
View article: Recurrence Risk of Autism in Siblings and Cousins: A Multinational, Population-Based Study
Recurrence Risk of Autism in Siblings and Cousins: A Multinational, Population-Based Study Open
Objective Familial recurrence risk is an important population-level measure of the combined genetic and shared familial liability of autism spectrum disorder (ASD). Objectives were to estimate ASD recurrence risk among siblings and cousin…