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Volume 18, Number 2—February 2012

Research

Unsuspected Dengue and Acute Febrile Illness in Rural and Semi-Urban Southern Sri Lanka

Megan E. RellerComments to Author , Champika Bodinayake, Ajith Nagahawatte, Vasantha Devasiri, Wasantha Kodikara-Arachichi, John J. Strouse, Anne Broadwater, Truls Østbye, Aravinda de Silva1, and Christopher W. Woods1
Author affiliations: Johns Hopkins University School of Medicine, Baltimore, Maryland, USA (M.E. Reller, J.J. Strouse); Medical Faculty of University of Ruhuna, Galle, Sri Lanka (C. Bodinayake, A. Nagahawatte, V. Devasiri, W. Kodikara-Arachichi); University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA (A. Broadwater, A. de Silva); Duke University School of Medicine, Durham, North Carolina, USA (T. Østbye, C.W. Woods)

Main Article

Table 2

Demographic characteristics of febrile patients with or without evidence of dengue virus infection, southern Sri Lanka, 2007*

Characteristic Acute dengue, n = 54† Past dengue, n = 410† Not dengue, n = 395† p value
Median age, years (IQR) 27.6 (22.4–44.5) 41.3 (27.0–53.4) 21.7 (13.3–35.3) 0.0001
Male 68.5 66.3 54.9 0.002
Residence 0.001
Rural 86.8 88.2 95.4
Urban 13.2 11.8 4.6
Type of work <0.001
Home 11.5 25.9 27.8
Laborer 19.2 32.4 18.3
Farmer, e.g., rice paddy 5.8 3.0 2.3
Merchant 3.9 4.0 2.1
Student 13.5 7.3 37.8
Other 46.2 27.4 11.8
Swim/bathe/wade in freshwater 0.63
None 74.1 73.1 76.4
River 20.4 13.5 12.2
Paddy field 3.7 10.8 9.1
Pond/lake 0 1.0 1.0
Other 1.9 1.7 1.3
Water source 0.003
Tap 42.6 35.1 25.5
Boiled 3.7 8.8 10.2
Well 51.9 54.9 64.4
Other 1.9 1.2 0

*Except for median age, data are percentages. IQR, interquartile range.
†Values are percentages unless otherwise stated.

Main Article

1These authors contributed equally to this article.

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