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ORIGINAL ARTICLE
Year : 2020  |  Volume : 11  |  Issue : 4  |  Page : 191-194

Green tea consumption effects on coagulation profile


1 Department of Public Health, College of Health Sciences, Saudi Electronic University, Riyadh, KSA; Department of Haematology, Faculty of Medical Laboratory Sciences, University of El Imam El Mahdi, Kosi, Sudan
2 Department of Haematology, Faculty of Medical Laboratory Sciences, University of El Imam El Mahdi, Kosi, Sudan
3 Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Al-Azhar University, Gaza, Palestine
4 Department of Public Health, College of Health Sciences, Saudi Electronic University, Riyadh, KSA

Correspondence Address:
Dr. Ahmed Mohammed Elnour Elkhalifa
Department of Public Health, College of Health Sciences, Saudi Electronic University, Riyadh; Department of Haematology, Faculty of Medical Laboratory Sciences, University of El Imam El Mahdi, Kosi

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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/joah.joah_77_20

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OBJECTIVES: The objective was to study the prothrombin time (PT) and activated partial thromboplastin time (APTT) values among Sudanese regularly drinking green tea. METHODS: This comparative study was conducted from May to November 2018 at the cities of Kosti, Rabak, and Sinnar, Sudan. Two hundred volunteers recruited in this study included individuals who drank more than three cups of green tea per day for at least 1 year or more (n = 100), and another group represented individuals who did not drink green tea (n = 100). Blood samples were collected in ethylenediaminetetraacetic acid and trisodium citrate anticoagulant containers. Coagulometer analyzer machine and standard methods were used for PT and APTT analysis. RESULTS: The study results showed significantly prolonged in both PT and APTT mean values of individuals who drank green tea when compared with those who did not drink green tea. The PT mean values are 19.88 ± 3.7 s vs. 15.43 ± 0.52 s (P < 0.001) and the APTT mean values are 34.94 ± 3.4 s vs. 32.86 ± 3.2 s (P < 0.002). The multiple linear regression analysis confirmed a positive impact relationship between age, drinking green tea, and duration time of drinking green tea with both PT and APTT values. CONCLUSION: The study concludes that daily drinking green tea for a long time could affect an individual's coagulation profile.


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