Fredrik Ahlsson
Professor at Department of Women's and Children's Health; Perinatal, Neonatal and Pediatric Cardiology Research
- Telephone:
- +46 18 611 58 85
- E-mail:
- fredrik.ahlsson@uu.se
- Visiting address:
- MTC-huset, Dag Hammarskjölds väg 14B, 1 tr
752 37 Uppsala - Postal address:
- Akademiska sjukhuset
751 85 UPPSALA
- Academic merits:
- Associate professor, MD, PhD

Publications
Recent publications
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Part of The Journal of Pediatrics, p. 114956-114956, 2026
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Human Milk Practices in Swedish Neonatal Units: Results From a Nationwide Survey
Part of Acta Paediatrica, p. 1048-1062, 2026
- DOI for Human Milk Practices in Swedish Neonatal Units: Results From a Nationwide Survey
- Download full text (pdf) of Human Milk Practices in Swedish Neonatal Units: Results From a Nationwide Survey
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Part of Acta Obstetricia et Gynecologica Scandinavica, p. 466-478, 2026
- DOI for Differences in prediction of adverse perinatal outcome in term pregnancies by choice of fetal growth reference: A validation study
- Download full text (pdf) of Differences in prediction of adverse perinatal outcome in term pregnancies by choice of fetal growth reference: A validation study
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Part of Scientific Reports, 2025
- DOI for More sedentary behavior and lower physical activity levels in pregnant women during the COVID-19 pandemic
- Download full text (pdf) of More sedentary behavior and lower physical activity levels in pregnant women during the COVID-19 pandemic
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Impact of early nutrition on brain development and neurocognitive outcomes in very preterm infants
Part of Pediatric Research, p. 593-598, 2025
- DOI for Impact of early nutrition on brain development and neurocognitive outcomes in very preterm infants
- Download full text (pdf) of Impact of early nutrition on brain development and neurocognitive outcomes in very preterm infants
All publications
Articles in journal
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Part of The Journal of Pediatrics, p. 114956-114956, 2026
-
Human Milk Practices in Swedish Neonatal Units: Results From a Nationwide Survey
Part of Acta Paediatrica, p. 1048-1062, 2026
- DOI for Human Milk Practices in Swedish Neonatal Units: Results From a Nationwide Survey
- Download full text (pdf) of Human Milk Practices in Swedish Neonatal Units: Results From a Nationwide Survey
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Part of Acta Obstetricia et Gynecologica Scandinavica, p. 466-478, 2026
- DOI for Differences in prediction of adverse perinatal outcome in term pregnancies by choice of fetal growth reference: A validation study
- Download full text (pdf) of Differences in prediction of adverse perinatal outcome in term pregnancies by choice of fetal growth reference: A validation study
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Part of Scientific Reports, 2025
- DOI for More sedentary behavior and lower physical activity levels in pregnant women during the COVID-19 pandemic
- Download full text (pdf) of More sedentary behavior and lower physical activity levels in pregnant women during the COVID-19 pandemic
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Impact of early nutrition on brain development and neurocognitive outcomes in very preterm infants
Part of Pediatric Research, p. 593-598, 2025
- DOI for Impact of early nutrition on brain development and neurocognitive outcomes in very preterm infants
- Download full text (pdf) of Impact of early nutrition on brain development and neurocognitive outcomes in very preterm infants
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Part of Scientific Reports, 2025
- DOI for Maternal sedentary behavior and physical activity levels in early to mid-pregnancy and obstetric outcomes: a cohort study
- Download full text (pdf) of Maternal sedentary behavior and physical activity levels in early to mid-pregnancy and obstetric outcomes: a cohort study
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Part of International Journal of Infectious Diseases, 2025
- DOI for The association between antenatal SARS-CoV-2 exposure and infant neurodevelopment at four months of age: A prospective multicenter cohort survey within the COPE study
- Download full text (pdf) of The association between antenatal SARS-CoV-2 exposure and infant neurodevelopment at four months of age: A prospective multicenter cohort survey within the COPE study
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Part of Acta Obstetricia et Gynecologica Scandinavica, p. 119-129, 2025
- DOI for Polycystic ovary syndrome and gestational diabetes mellitus association to pregnancy outcomes: A national register-based cohort study
- Download full text (pdf) of Polycystic ovary syndrome and gestational diabetes mellitus association to pregnancy outcomes: A national register-based cohort study
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Part of Acta Obstetricia et Gynecologica Scandinavica, p. 2171-2182, 2024
- DOI for Maternal body mass index, gestational weight gain, and early childhood growth: A register-based cohort study
- Download full text (pdf) of Maternal body mass index, gestational weight gain, and early childhood growth: A register-based cohort study
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Part of eClinicalMedicine, 2024
- DOI for Effect of human milk-based fortification in extremely preterm infants fed exclusively with breast milk: a randomised controlled trial
- Download full text (pdf) of Effect of human milk-based fortification in extremely preterm infants fed exclusively with breast milk: a randomised controlled trial
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Part of PLOS Digital Health, 2024
- DOI for Mothers’ acceptability of using novel technology with video and audio recording during newborn resuscitation: A cross-sectional survey
- Download full text (pdf) of Mothers’ acceptability of using novel technology with video and audio recording during newborn resuscitation: A cross-sectional survey
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Part of Acta Paediatrica, p. 2398-2405, 2024
- DOI for Unpredictable supplementation of vitamin D to infants in the neonatal intensive care unit: An experimental study
- Download full text (pdf) of Unpredictable supplementation of vitamin D to infants in the neonatal intensive care unit: An experimental study
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Part of PLoS Medicine, 2024
- DOI for Changing diagnostic criteria for gestational diabetes (CDC4G) in Sweden: A stepped wedge cluster randomised trial
- Download full text (pdf) of Changing diagnostic criteria for gestational diabetes (CDC4G) in Sweden: A stepped wedge cluster randomised trial
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Part of Scientific Reports, 2024
- DOI for Differential gene expression in two consecutive pregnancies between same sex siblings and implications on maternal constraint
- Download full text (pdf) of Differential gene expression in two consecutive pregnancies between same sex siblings and implications on maternal constraint
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Combined maternal central adiposity measures in relation to infant birth size
Part of Scientific Reports, 2024
- DOI for Combined maternal central adiposity measures in relation to infant birth size
- Download full text (pdf) of Combined maternal central adiposity measures in relation to infant birth size
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Part of Acta Obstetricia et Gynecologica Scandinavica, p. 2522-2531, 2024
- DOI for Associations of maternal sedentary behavior and physical activity levels in early to mid‐pregnancy with infant outcomes: A cohort study
- Download full text (pdf) of Associations of maternal sedentary behavior and physical activity levels in early to mid‐pregnancy with infant outcomes: A cohort study
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Part of Scientific Reports, 2023
- DOI for Maternal early mid-pregnancy adiponectin in relation to infant birth weight and the likelihood of being born large-for-gestational-age.
- Download full text (pdf) of Maternal early mid-pregnancy adiponectin in relation to infant birth weight and the likelihood of being born large-for-gestational-age.
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Neonatal outcomes of elective labor induction in low-risk term pregnancies
Part of Scientific Reports, 2023
- DOI for Neonatal outcomes of elective labor induction in low-risk term pregnancies
- Download full text (pdf) of Neonatal outcomes of elective labor induction in low-risk term pregnancies
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Part of Nutrients, 2023
- DOI for Equally Good Neurological, Growth, and Health Outcomes up to 6 Years of Age in Moderately Preterm Infants Who Received Exclusive vs. Fortified Breast Milk-A Longitudinal Cohort Study
- Download full text (pdf) of Equally Good Neurological, Growth, and Health Outcomes up to 6 Years of Age in Moderately Preterm Infants Who Received Exclusive vs. Fortified Breast Milk-A Longitudinal Cohort Study
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Part of Reproductive Sciences, p. 1165-1175, 2023
- DOI for Early Mid-pregnancy Blood-Based Proteins as Possible Biomarkers of Increased Infant Birth Size in Sex-Stratified Analyses
- Download full text (pdf) of Early Mid-pregnancy Blood-Based Proteins as Possible Biomarkers of Increased Infant Birth Size in Sex-Stratified Analyses
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Part of Journal of Perinatology, p. 1301-1307, 2023
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Part of Scientific Reports, 2022
- DOI for Associations between capillary glucose during pregnancy and childhood growth to the age of five: a cohort study
- Download full text (pdf) of Associations between capillary glucose during pregnancy and childhood growth to the age of five: a cohort study
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Part of Neonatology, p. 745-752, 2022
- DOI for Early Hyperglycemia in Very Preterm Infants Is Associated with Reduced White Matter Volume and Worse Cognitive and Motor Outcomes at 2.5 Years
- Download full text (pdf) of Early Hyperglycemia in Very Preterm Infants Is Associated with Reduced White Matter Volume and Worse Cognitive and Motor Outcomes at 2.5 Years
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Part of Journal of Developmental Origins of Health and Disease, p. 650-655, 2022
- DOI for Relation of maternal birthweight with early pregnancy obesity, gestational diabetes, and offspring macrosomia
- Download full text (pdf) of Relation of maternal birthweight with early pregnancy obesity, gestational diabetes, and offspring macrosomia
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Part of Nutrients, 2022
- DOI for The Impact of Restricted versus Liberal Early Fluid Volumes on Plasma Sodium, Weight Change, and Short-Term Outcomes in Extremely Preterm Infants
- Download full text (pdf) of The Impact of Restricted versus Liberal Early Fluid Volumes on Plasma Sodium, Weight Change, and Short-Term Outcomes in Extremely Preterm Infants
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Part of Reproductive Sciences, p. 2333-2341, 2022
- DOI for Maternal blood-based protein biomarkers in relation to abdominal fat distribution measured by ultrasound in early mid-pregnancy
- Download full text (pdf) of Maternal blood-based protein biomarkers in relation to abdominal fat distribution measured by ultrasound in early mid-pregnancy
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Part of Acta Paediatrica, p. 536-545, 2022
- DOI for Amino acid infusions in umbilical artery catheters enhance protein administration in infants born at extremely low gestational age
- Download full text (pdf) of Amino acid infusions in umbilical artery catheters enhance protein administration in infants born at extremely low gestational age
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Part of Acta Paediatrica, p. 1701-1708, 2022
- DOI for Sodium supply from administered blood products was associated with severe intraventricular haemorrhage in extremely preterm infants
- Download full text (pdf) of Sodium supply from administered blood products was associated with severe intraventricular haemorrhage in extremely preterm infants
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Part of BMJ Health & Care Informatics, 2022
- DOI for Usability, acceptability and feasibility of a novel technology with visual guidance with video and audio recording during newborn resuscitation: a pilot study
- Download full text (pdf) of Usability, acceptability and feasibility of a novel technology with visual guidance with video and audio recording during newborn resuscitation: a pilot study
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Part of Scientific Reports, 2021
- DOI for Associations of ultrasound estimated early mid pregnancy visceral and subcutaneous fat depths and early pregnancy BMI with adverse neonatal outcomes
- Download full text (pdf) of Associations of ultrasound estimated early mid pregnancy visceral and subcutaneous fat depths and early pregnancy BMI with adverse neonatal outcomes
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Part of BMJ Open, 2021
- DOI for Nordic study on human milk fortification in extremely preterm infants: a randomised controlled trial - the N-forte trial
- Download full text (pdf) of Nordic study on human milk fortification in extremely preterm infants: a randomised controlled trial - the N-forte trial
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Part of Archives of Disease in Childhood, 2021
- DOI for Neonatal hyperglycaemia is associated with worse neurodevelopmental outcomes in extremely preterm infants
- Download full text (pdf) of Neonatal hyperglycaemia is associated with worse neurodevelopmental outcomes in extremely preterm infants
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Factors Influencing Breast Milk Fat Loss during Administration in the Neonatal Intensive Care Unit
Part of Nutrients, 2021
- DOI for Factors Influencing Breast Milk Fat Loss during Administration in the Neonatal Intensive Care Unit
- Download full text (pdf) of Factors Influencing Breast Milk Fat Loss during Administration in the Neonatal Intensive Care Unit
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Part of Scientific Reports, 2020
- DOI for Association of maternal central adiposity measured by ultrasound in early mid pregnancy with infant birth size
- Download full text (pdf) of Association of maternal central adiposity measured by ultrasound in early mid pregnancy with infant birth size
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Large-for-gestational-age phenotypes and obesity risk in adulthood: a study of 195,936 women
Part of Scientific Reports, 2020
- DOI for Large-for-gestational-age phenotypes and obesity risk in adulthood: a study of 195,936 women
- Download full text (pdf) of Large-for-gestational-age phenotypes and obesity risk in adulthood: a study of 195,936 women
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Part of European journal of obstetrics & gynecology and reproductive biology: X, 2020
- DOI for Impact of maternal central adiposity on infant anthropometry and perinatal morbidity: A systematic review
- Download full text (pdf) of Impact of maternal central adiposity on infant anthropometry and perinatal morbidity: A systematic review
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Part of Hormone Research in Paediatrics, p. 106-114, 2020
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Part of Acta Paediatrica, p. 976-981, 2020
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Postnatal growth in children born small for gestational age with and without smoking mother
Part of Pediatric Research, p. 961-966, 2019
- DOI for Postnatal growth in children born small for gestational age with and without smoking mother
- Download full text (pdf) of Postnatal growth in children born small for gestational age with and without smoking mother
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Part of Journal of Developmental Origins of Health and Disease, p. 529-535, 2019
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Part of BMC Pregnancy and Childbirth, 2019
- DOI for Changing diagnostic criteria for gestational diabetes in Sweden-a stepped wedge national cluster randomised controlled trial-the CDC4G study protocol
- Download full text (pdf) of Changing diagnostic criteria for gestational diabetes in Sweden-a stepped wedge national cluster randomised controlled trial-the CDC4G study protocol
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Part of Scientific Reports, 2019
- DOI for Growth patterns during early childhood in children born small for gestational age and moderate preterm
- Download full text (pdf) of Growth patterns during early childhood in children born small for gestational age and moderate preterm
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Preterm Birth is Associated With Increased Blood Pressure in Young Adult Women
Part of Journal of the American Heart Association, 2019
- DOI for Preterm Birth is Associated With Increased Blood Pressure in Young Adult Women
- Download full text (pdf) of Preterm Birth is Associated With Increased Blood Pressure in Young Adult Women
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Part of Scientific Reports, 2019
- DOI for Maternal smoking early in pregnancy is associated with increased risk of short stature and obesity in adult daughters
- Download full text (pdf) of Maternal smoking early in pregnancy is associated with increased risk of short stature and obesity in adult daughters
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Part of Acta Paediatrica, p. 2208-2213, 2019
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Reduced rate of retinopathy of prematurity after implementing lower oxygen saturation targets.
Part of Journal of Perinatology, p. 409-414, 2019
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Part of Acta Paediatrica, p. 2152-2157, 2018
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Hyperglycemia in Extremely Preterm Infants Insulin Treatment, Mortality and Nutrient Intakes
Part of The Journal of Pediatrics, p. 104-110, 2018
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Association Between Preterm Birth and Lower Adult Height in Women
Part of American Journal of Epidemiology, p. 48-53, 2017
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Part of Pediatric Research, p. 455-460, 2017
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Body Mass Index, Overweight, and Obesity in Swedish Women Born Post-term
Part of Paediatric and Perinatal Epidemiology, p. 320-324, 2016
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Part of Journal of Epidemiology and Community Health, p. 78-81, 2016
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Maternal Height and Preterm Birth: A Study on 192,432 Swedish Women
Part of PLOS ONE, 2016
- DOI for Maternal Height and Preterm Birth: A Study on 192,432 Swedish Women
- Download full text (pdf) of Maternal Height and Preterm Birth: A Study on 192,432 Swedish Women
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Part of Journal of Pediatric Gastroenterology and Nutrition - JPGN, p. 885-892, 2016
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Early-life hyperglycemia in extremely preterm infants affects neurodevelopment at 6 years of age
Part of European Journal of Pediatrics, p. 1440-1440, 2016
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Part of Scientific Reports, 2015
- DOI for Infants born large-for-gestational-age display slower growth in early infancy, but no epigenetic changes at birth
- Download full text (pdf) of Infants born large-for-gestational-age display slower growth in early infancy, but no epigenetic changes at birth
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Part of Reproductive Sciences, p. 1281-1288, 2015
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Computer-aided nutrition - Effects on nutrition and growth in preterm infants < 32 weeks gestation
Part of Clinical Nutrition ESPEN, 2015
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Part of Scientific Reports, 2015
- DOI for Obesity rates in two generations of Swedish women entering pregnancy, and associated obesity risk among adult daughters
- Download full text (pdf) of Obesity rates in two generations of Swedish women entering pregnancy, and associated obesity risk among adult daughters
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A high birth weight is associated with increased risk of type 2 diabetes and obesity
Part of Pediatric Obesity, p. 77-83, 2015
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School performance after preterm birth
Part of Epidemiology, p. 106-111, 2015
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Energy substrate metabolism in pyruvatedehydrogenase complex deficiency
Part of Journal of Pediatric Endocrinology & Metabolism (JPEM), p. 1059-1064, 2014
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Part of Acta Paediatrica, p. 282-288, 2014
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Energy substrate metabolism in pyruvate dehydrogenase complex deficiency
Part of Journal of Pediatric Endocrinology & Metabolism (JPEM), p. 1059-1064, 2014
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Part of Acta Paediatrica, p. 1067-1074, 2013
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Part of European Journal of Obstetrics, Gynecology, and Reproductive Biology, p. 26-29, 2013
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Part of New Zealand Medical Journal, 2011
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Part of Hormone research in paediatrics, p. 267-274, 2010
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Gestational diabetes and offspring body disproportion
Part of Acta Paediatrica, p. 89-93, 2010
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Lipolysis and Insulin Sensitivity at Birth in Infants Who Are Large for Gestational Age
Part of Pediatrics, p. 958-965, 2007
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Energy substrate production in infants born small for gestational age
Part of Acta Paediatrica, p. 29-34, 2007
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Part of Acta Paediatrica, p. 358-362, 2007
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Treatment of extreme hyperglycemia monitored with intracerebral microdialysis.
Part of Pediatr Crit Care Med, p. 89-92, 2004
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Born small for gestational age and moderate preterm; implications on postnatal growth
Articles, review/survey
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Part of Acta Paediatrica, p. 31-44, 2020