ArticleBMC pulmonary medicine2021
Longitudinal trajectories of pneumonia lesions and lymphocyte counts associated with disease severity among convalescent COVID-19 patients: a group-based multi-trajectory analysis.
Article in BMC pulmonary medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06538441 (Dynamic Pattern of Etiology, Immunoinflammatory Factors and Their Association With Prognosis of Severe Pneumonia), which is not on this map. Cited by 4 papers.
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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.
Dynamic Pattern of Etiology, Immunoinflammatory Factors and Their Association With Prognosis of Severe Pneumonia: a Longitudinal Observational Study
Who cites it
4 citing papers in PubMed.
- Joint trajectories of burden and benefits of caregiving among informal caregivers of older adults with functional limitations: a longitudinal study.Scientific reports · 2026Article
- Hybrid Bayesian Network-Based Modeling: COVID-19-Pneumonia Case.Journal of personalized medicine · 2022Article
- Lymphocyte trajectories are associated with prognosis in critically ill patients: A convenient way to monitor immune status.Frontiers in medicine · 2022Article
- Assessment of cerebral hemodynamics in patients with acute brain injury: a group-based multivariate trajectory approach.Frontiers in neurologyArticle
Corrections and comments
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Authors and funding
14 authors.
Funding
Abstract
backgroundTo explore the long-term trajectories considering pneumonia volumes and lymphocyte counts with individual data in COVID-19.
methodsA cohort of 257 convalescent COVID-19 patients (131 male and 126 females) were included. Group-based multi-trajectory modelling was applied to identify different trajectories in terms of pneumonia lesion percentage and lymphocyte counts covering the time from onset to post-discharge follow-ups. We studied the basic characteristics and disease severity associated with the trajectories.
resultsWe characterised four distinct trajectory subgroups. (1) Group 1 (13.9%), pneumonia increased until a peak lesion percentage of 1.9% (IQR 0.7-4.4) before absorption. The slightly decreased lymphocyte rapidly recovered to the top half of the normal range. (2) Group 2 (44.7%), the peak lesion percentage was 7.2% (IQR 3.2-12.7). The abnormal lymphocyte count restored to normal soon. (3) Group 3 (26.0%), the peak lesion percentage reached 14.2% (IQR 8.5-19.8). The lymphocytes continuously dropped to 0.75 × 10
conclusionsOur findings provide new insights to understand the heterogeneous natural courses of COVID-19 patients and the associations of distinct trajectories with disease severity, which is essential to improve the early risk assessment, patient monitoring, and follow-up schedule.
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