ArticleMediterranean journal of hematology and infectious diseases2025
Group-Based Trajectory Modeling of Platelet in Patients with Aplastic Anemia: A Study Based on the MIMIC Database.
Article in Mediterranean journal of hematology and infectious diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Platelets are the main components supporting coagulation and hemostasis. Nevertheless, no sufficient research has been done on how variations in platelet counts during hospital stays affect aplastic anemia (AA) patients' prognoses. Objective: This study proposes to evaluate the association between alterations in platelet levels and illness risk in patients with AA using group-based trajectory modeling (GBTM). Methods: GBTM was used to group AA patients based on changes in platelet levels. Cox regression models were used to evaluate the relationship between platelet levels and patients' 30-day survival status. Kaplan-Meier (K-M) survival curve analysis was used to assess the impact of platelet transfusion on survival among different trajectory groups of patients. Results: Three trajectory patterns were recognized by GBTM: Class 1, Class 2, and Class 3. Even after controlling for confounding variables, the Cox risk estimates showed that AA patients had a higher chance of surviving in Class 1 (OR>1, P<0.05). Class 2 patients had the greatest survival, according to K-M (Log-rank P<0.001). According to landmark research, Class 1 patients' survival was not improved by platelet transfusion. Conclusion: Patients with AA who had increasing platelet trajectories during their hospital stay had a higher 30-day survival rate; hence, patients with low platelet counts might not be good candidates for platelet transfusion treatment.
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