| | Variable | N = 14,020 (%) |
| | Age | | Mean (SD) (years) | 36.21 (0.153) | | Median (years) | 34 | | 0–20 | 3,076 (21.9) | | 21–59 | 9,302 (66.3) | | 60 and above | 1,642 (11.7) | | Gender | | Male | 8,130 (58.0) | | Female | 5,890 (42.0) | | Nationality | | Malaysian | 13,372 (95.4) | | Non-Malaysian | 598 (4.6) | | Ethnicity | | Iban | 3,658 (26.1) | | Chinese | 4,849 (34.6) | | Malay/Melanau | 2,507 (17.9) | | Bidayuh | 685 (4.9) | | Other Sarawakian natives | 1,520 (10.8) | | Others | 801 (5.7) | | Occupation (n = 5,478) | | Working | 3,180 (22.7) | | Non-working | 1,557 (11.1) | | Student | 741 (5.3) | | Unknown | 8,542 (60.9) | | Place of dwelling (n = 13,841) | | Rural | 8,126 (58.0) | | Urban | 5,715 (40.8) | | Days before seeking treatment | | Mean (SD) (day) | 3.89 (4.44) | | Median (day) | 4 | | Classification of cases | | Cases from outbreaks | 4,636 (33.1) | | Single sporadic cases | 9,384 (66.9) | | Clinical sign/symptoms | | Fever | 13,999 (99.9) | | Headache | 12,640 (90.2) | | Retro-orbital pain | 1,412 (10.1) | | Bodyache/joint pain | 11,006 (78.5) | | Nausea/vomiting | 6,360 (45.4) | | Rash | 1,648 (11.8) | | Abdominal pain/discomfort | 536 (3.8) | | Haemorrhage | 145 (1.0) | | Diarrhoea | 215 (1.5) | | Rapid test (n = 5,227) (%) | | NS1 positive | 3,111 (59.5) | | IgM positive | 1,693 (32.3) | | IgG positive | 2,592 (49.5) |
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