Clinical prognostic scores for dengue fever: A systematic review

Table 1 Summary of study design with inclusion and exclusion criteria

	Inclusion criteria	Exclusion criteria
Population/problem	Patients primarily diagnosed with dengue fever through: Serum non-structural protein 1 antigen positivity or IgM and IgG antibodies to dengue virus or dengue virus RNA by real-time reverse transcriptase polymerase chain reaction	Patients diagnosed with other febrile illnesses
Intervention/exposure	Prognostic clinical scoring systems for dengue fever. Predicted outcomes of the models include any possible clinical endpoints of Dengue Fever such as dengue severity, critical outcomes, probability of intensive care unit outcomes or mortality rates	Scores for purposes other than prognostication e.g. diagnosis etc. Scores that are not specific to dengue fever. Non-clinical scoring systems
Control/comparison	Nil	Nil
Outcome	Accuracy of prognostic scoring	Nil
Study design	Articles in English/translated into English Observational studies (prospective and retrospective cohort). Randomised controlled trials	Articles not written in English/no available English translation Systematic reviews and meta-analyses. Review articles. Case series, case reports