User profiles for Pia Hardelid

Pia Hardelid

Univerity College London
Verified email at ucl.ac.uk
Cited by 3862

Incidence of 2009 pandemic influenza A H1N1 infection in England: a cross-sectional serological study

E Miller, K Hoschler, P Hardelid, E Stanford, N Andrews… - The Lancet, 2010 - thelancet.com
Background Knowledge of the age-specific prevalence of immunity from, and incidence of
infection with, 2009 pandemic influenza A H1N1 virus is essential for modelling the future …

Estimating the prevalence of chronic conditions in children who die in England, Scotland and Wales: a data linkage cohort study

P Hardelid, N Dattani, R Gilbert - BMJ open, 2014 - bmjopen.bmj.com
Objectives To estimate the proportion of children who die with chronic conditions and
examine time trends in childhood deaths involving chronic conditions. Design Retrospective …

[HTML][HTML] COVID-19 trajectories among 57 million adults in England: a cohort study using electronic health records

…, N Hall, T Hama, A Hansell, P Hardelid… - The Lancet Digital …, 2022 - thelancet.com
Background Updatable estimates of COVID-19 onset, progression, and trajectories underpin
pandemic mitigation efforts. To identify and characterise disease trajectories, we aimed to …

Data resource profile: hospital episode statistics admitted patient care (HES APC)

…, A Zylbersztejn, D Cromwell, P Hardelid - International journal …, 2017 - academic.oup.com
Pia Hardelid Pia Hardelid … Annie Herbert, Linda Wijlaars, Ania Zylbersztejn, David Cromwell,
Pia Hardelid, Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (…

[HTML][HTML] Prevalence and characteristics of persistent symptoms in children during the COVID-19 pandemic: evidence from a household cohort study in England and …

…, E Fragaszy, RW Aldridge, P Hardelid - The Pediatric …, 2022 - journals.lww.com
This work was supported by the Medical Research Council [grant numbers MC_PC19070
and MR/V028375/1, and MR/N013867/1 to Miss Miller] and the Wellcome Trust [grant number …

Estimating the burden of respiratory syncytial virus (RSV) on respiratory hospital admissions in children less than five years of age in England, 2007‐2012

RM Reeves, P Hardelid, R Gilbert… - Influenza and other …, 2017 - Wiley Online Library
Background Respiratory syncytial virus ( RSV ) is a leading cause of hospital admission in
young children. With several RSV vaccines candidates undergoing clinical trials, recent …

Chronic conditions in children and young people: learning from administrative data

LPMM Wijlaars, R Gilbert, P Hardelid - Archives of disease in …, 2016 - adc.bmj.com
Over the last century, the primary burden of disease in children and young people has
shifted from infectious diseases towards chronic conditions. 1 Improvements in neonatal and …

[HTML][HTML] Child mortality in England compared with Sweden: a birth cohort study

…, R Gilbert, A Hjern, L Wijlaars, P Hardelid - The Lancet, 2018 - thelancet.com
Background Child mortality is almost twice as high in England compared with Sweden. We
aimed to establish the extent to which adverse birth characteristics and socioeconomic …

Risk factors, symptom reporting, healthcare-seeking behaviour and adherence to public health guidance: protocol for Virus Watch, a prospective community cohort …

…, V Nguyen, S Beale, T Byrne, A Aryee, P Hardelid… - BMJ open, 2021 - bmjopen.bmj.com
Introduction The coronavirus (COVID-19) pandemic has caused significant global mortality
and impacted lives around the world. Virus Watch aims to provide evidence on which public …

[HTML][HTML] Nucleocapsid and spike antibody responses following virologically confirmed SARS-CoV-2 infection: an observational analysis in the Virus Watch community …

…, RW Aldridge, S Michie, P Hardelid… - International Journal of …, 2022 - Elsevier
Objectives Seroprevalence studies can provide a measure of SARS-CoV-2 cumulative
incidence, but a better understanding of spike and nucleocapsid (anti-N) antibody dynamics …