1. The aspartate aminotransferase/platelet count ratio index as a marker of dengue virus infection: Course of illness
- Author
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Asmaa Altamimi, Anwar E. Ahmed, Hamdan Al-Jahdali, Bassam Dahman, and Donna K. McClish
- Subjects
Male ,0301 basic medicine ,ALT ,Dengue virus ,Logistic regression ,medicine.disease_cause ,Severity of Illness Index ,Dengue fever ,Dengue ,0302 clinical medicine ,Medicine ,Platelet ,030212 general & internal medicine ,Child ,Aged, 80 and over ,Reverse Transcriptase Polymerase Chain Reaction ,lcsh:Public aspects of medicine ,Course of illness ,General Medicine ,Middle Aged ,Infectious Diseases ,Child, Preschool ,Female ,AST/platelet ratio index ,Adult ,medicine.medical_specialty ,Adolescent ,030106 microbiology ,Primary care ,lcsh:Infectious and parasitic diseases ,Young Adult ,03 medical and health sciences ,Internal medicine ,Chart review ,Humans ,lcsh:RC109-216 ,Aspartate Aminotransferases ,Severe Dengue ,Aged ,Retrospective Studies ,Platelet Count ,business.industry ,Public Health, Environmental and Occupational Health ,Repeated measures design ,lcsh:RA1-1270 ,Dengue Virus ,medicine.disease ,MCV ,business ,Biomarkers - Abstract
Background The usefulness of laboratory tests in the decision-making process with regard to early identification of dengue virus infection has not been widely reported, particularly the aspartate aminotransferase (AST)/platelet count ratio index during a patient's days of illness. The aim of this study was to examine the pattern of the ratio index over the course of illness and identify whether it is a marker of dengue virus infection in dengue patients, as well as to assess the role of other laboratory tests. Methods A chart review of 205 dengue patients was analyzed using available records of 845 laboratory results within different time intervals or exam dates during the course of illness. We used repeated measures mixed binary logistic regression analyses to model the dengue virus infection, defined as giving at least one positive antibody test (yes/no). Results The high risk of dengue virus infection in dengue patients was found in the male gender (adjusted OR = 4.316, 95% CI: 1.285–14.498, P = 0.018), in patients with a high AST/platelet count ratio index (adjusted OR = 1.438, 95% CI: 1.057–1.957, P = 0.021), in patients with a low MCV level (adjusted OR = 0.815, 95% CI: 0.679–0.978, P = 0.028), and in patients with a low ALT level (adjusted OR = 0.996, 95% CI: 0.993–0.999, P = 0.010). Conclusion Laboratory markers, in particular the AST/platelet count ratio index, can be useful for clinicians to strengthen the decision-making process in primary care settings. Furthermore, our model revealed that low MCV and low ALT are predictors of the dengue virus infection, while being a male increases the risk of dengue virus infection. More studies are needed to evaluate the impact of the AST/platelet count ratio index on the severity of dengue fever infection during the onset of symptoms and course of treatment.
- Published
- 2020
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