ArticleNature medicine2023
Potential pitfalls in the use of real-world data for studying long COVID.
Abstract readLetter
In one paragraph
Article in Nature medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.
0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–field-weighted citation impact
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
25 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Definition and measurement of post-COVID-19 conditions in real-world practice: a global systematic literature review.BMJ open · 2024Pooled it
- A mixed-methods study comparing clinical and patient-reported perspectives on long COVID: insights from electronic health records and narrative journal entries.BMC infectious diseases · 2026Observational
- Long COVID Persistence and Surveillance Gaps Across 58 US Hospitals.JAMA network open · 2026Article
- A Cohort Study Characterizing the Outcomes Following an Acute SARS-CoV-2 Infection in Pregnancy.Journal of clinical medicine · 2025Article
- Extracting post-acute sequelae of SARS-CoV-2 infection symptoms from clinical notes via hybrid natural language processing.npj health systems · 2025Article
- Re-engineering a machine learning phenotype to adapt to the changing COVID-19 landscape: a machine learning modelling study from the N3C and RECOVER consortia.The Lancet. Digital health · 2025Article
- Causal Inference via Electronic Health Records in the National Clinical Cohort Collaborative: Challenges and Solutions in Long COVID Research.medRxiv : the preprint server for health sciences · 2025Article
- Postacute Sequelae From SARS-CoV-2 at the University of Illinois Hospital and Clinics: An Examination of the Effects of Long COVID in an Underserved Population Utilizing Manual Extraction of Electronic Health Records.American journal of medicine open · 2025Article
- Investigating use of diagnostic codes for post-COVID- 19 condition in Ontario health administrative data.BMC health services research · 2025Article
- Precision phenotyping for curating research cohorts of patients with unexplained post-acute sequelae of COVID-19.Med (New York, N.Y.) · 2025Article
- Opportunities and Challenges in Using Electronic Health Record Systems to Study Postacute Sequelae of SARS-CoV-2 Infection: Insights From the NIH RECOVER Initiative.Journal of medical Internet research · 2025Article
- Healthcare utilization patterns before and after a long COVID diagnosis: a case-control study.BMC public health · 2025Article
- Association of glycemic control with Long COVID in patients with type 2 diabetes: findings from the National COVID Cohort Collaborative (N3C).BMJ open diabetes research & care · 2025Article
- Impact of extended-course oral nirmatrelvir/ritonavir in established Long COVID: a case series.Communications medicine · 2025Article
- Comparison of long COVID, recovered COVID, and non-COVID Post-Acute Infection Syndromes over three years.PloS one · 2025Article
- Real-World-Time Data and RCT Synergy: Advancing Personalized Medicine and Sarcoma Care through Digital Innovation.Cancers · 2024Review
- Association of psychiatric disorders with clinical diagnosis of long COVID in US veterans.Psychological medicine · 2024Article
- Clinical coding of long COVID in primary care 2020-2023 in a cohort of 19 million adults: an OpenSAFELY analysis.EClinicalMedicine · 2024Article
- Characterization of Post-COVID-19 Definitions and Clinical Coding Practices: Longitudinal Study.Online journal of public health informatics · 2024Article
- Centralized Interactive Phenomics Resource: an integrated online phenomics knowledgebase for health data users.Journal of the American Medical Informatics Association : JAMIA · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
25 authors.
Harrison G ZhangDepartment of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0001-6679-1464
Jacqueline P HonerlawMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, USA.ORCID http://orcid.org/0000-0002-5872-359X
Monika MaripuriMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, USA.
Malarkodi Jebathilagam SamayamuthuDepartment of Biomedical Informatics, University of Pittsburgh, Pittsburgh, PA, USA.
Brendin R Beaulieu-JonesDepartment of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.
Huma S BaigDepartment of Surgery, Beth Israel Deaconess Medical Center, Boston, MA, USA.
Sehi L'YiDepartment of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0001-7720-2848
Yuk-Lam HoMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, USA.ORCID http://orcid.org/0000-0003-3305-3830
Michele MorrisDepartment of Biomedical Informatics, University of Pittsburgh, Pittsburgh, PA, USA.
Vidul Ayakulangara PanickanDepartment of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0003-0616-0403
Xuan WangDepartment of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.
Griffin M WeberDepartment of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.
Katherine P LiaoMassachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, USA.ORCID http://orcid.org/0000-0002-4797-3200
Shyam VisweswaranDepartment of Biomedical Informatics, University of Pittsburgh, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0002-2079-8684
Bryce W Q TanDepartment of Medicine, National University Hospital, Singapore, Singapore, Singapore.
William YuanDepartment of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.
Nils GehlenborgDepartment of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.
Sumitra MuralidharOffice of Research and Development, US Department of Veterans Affairs, Washington DC, USA.
Rachel B RamoniOffice of Research and Development, US Department of Veterans Affairs, Washington DC, USA.
Consortium for Clinical Characterization of COVID-19 by EHR (4CE)
Isaac S Kohane *Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0003-2192-5160
Zongqi Xia *Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0003-1500-2589
Kelly Cho *Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, USA.
Tianxi Cai *Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0002-5379-2502
Gabriel A Brat *Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA. gbrat@bidmc.harvard.edu.
Funding
Michigan Institute for Clinical and Health Research (MICHR)UM1TR004404 · NCATS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Julie C Lumeng · 2023 to 2026
$39.8MRESEARCH TRAINING-MEDICAL INFORMATICS 90T15LM007092 · NLM · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI Nils Gehlenborg · 1992 to 2026
$32.8MLeveraging electronic health records to optimize treatment selection and response in multiple sclerosisR01NS098023 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Zongqi Xia · 2016 to 2026
$4.6MBiases introduced by filtering electronic health records for patients with "complete data"R01LM013345 · NLM · HARVARD MEDICAL SCHOOL · PI WEBER, GRIFFIN M · 2020 to 2023
$1.4MReal-world impact of the COVID-19 pandemic in people with multiple sclerosisR01NS124882 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI XIA, ZONGQI · 2022 to 2024
$1.2MBritish Heart Foundation FS/19/52/34563NCATS NIH HHS UM1 TR004404NINDS NIH HHS R01 NS098023NINDS NIH HHS R01 NS124882NLM NIH HHS R01 LM013345NLM NIH HHS T15 LM007092
Abstract
PubMed holds no abstract for this paper.
Indexed as
COVID-19HumansPost-Acute COVID-19 SyndromeResearch
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.