| | Variables | Description | Measure | Values |
| | Week | Week declared by patient when fever started | Scale | | | Year | Registration year | Scale | | | Age | Age of the patient at the time of registration | Scale | | | Sex | Patient’s sex | Nominal | 1 = male, 0 = female | | District | Geographic area of the Department of Concepción where the patient resides | Nominal | | | Hospitalised | Indicates whether the patient was hospitalised or treated as an outpatient | Nominal | 1 = yes, 0 = no | | Headache | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Myalgia | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Arthralgia | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Retro-ocular pain | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Pruritus | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Sickness | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Cough and dyspnea | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Oligoanuria | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Epistaxis | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Gingivorrhagia | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Hemoptysis | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Melena | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Black vomiting | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Exanthema | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Shock | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Conjunctival injection | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Bipalpebral edema | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Tachycardia | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Hepatomegaly | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Splenomegaly | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Sensory alteration | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Stiff neck | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Petechia | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Purpura | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Jaundice | Presence of the symptom | Nominal | 1 = yes, 0 = no | | Other symptoms | Presence of other symptoms | Nominal | 1 = yes, 0 = no | | Travel | Patient’s statement if he/she travelled the last 15 days | Nominal | 1 = yes, 0 = no | | Camping | Patient’s statement if he/she was camping the last 15 days | Nominal | 1 = yes, 0 = no | | Similar health condition | Patient’s statement if he/she had a similar health condition before | Nominal | 1 = yes, 0 = no | | Live alone | Patient’s statement if he/she lives alone | Nominal | 1 = yes, 0 = no | | Poverty | Doctor’s impression of whether the patient is in poverty | Nominal | 1 = yes, 0 = no | | Final classification | Laboratory diagnosis for confirming dengue virus infection | Nominal | C = confirmed, D = discarded |
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