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. 2023 Apr 11. Online ahead of print. doi: 10.1016/j.jtha.2023.02.033

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© 2023 The Authors

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Platelet activation markers, coagulation factors, and NET-related measurements in long COVID. Comparisons between long haulers who visited a recovery clinic (n_lh) and all other convalescents (n_c) were analyzed for (A) FVIII (n_c = 37, n_lh = 29), p = .4275, (B) VWF (n_c = 37, n_lh = 29), p = .9770, (C) sP-selectin (n_c = 37, n_lh = 29), p = .0178, (D) PF4 (n_c = 37, n_lh = 29), p = .2325, (E) MPO (n_c = 36, n_lh = 29), p = .0447, (F) cfDNA (n_c = 36, n_lh = 29), p = .7957, (G) MPO-DNA complexes (n_c = 34, n_lh = 27), p = .0860, (H) H3Cit-DNA (n_c = 33, n_lh = 28), p = .0755, (I) NETosis induction levels (n_c = 37, n_lh = 29), p = .0088. Statistical analysis was performed using two-tailed Mann–Whitney tests. (J) NETosis induction levels of recovery clinic long haulers who experienced the most common symptoms and of all other convalescents (n = 17). Fatigue (n = 25), shortness of breath (n = 18), chest pressure/pain (n = 8), cough (n = 7), and lung damage (n = 7). A significant difference was found between the presented groups according to the Kruskal-Wallis test (p = .0306).