Maintenance of demographic and hematological profiles in a long-lasting dengue fever outbreak: implications for management

Table 1 Demographic and hematological status of DENV+ and DENV- patients in the 2007 Marilia outbreak

Variable		DENV+	DENV-	Test	P
SEX	% males	48.1	42.5	1.19	0.2748
DAY	Mean	42.25	37.84	19,050	0.0485
	Standard deviation	19.906	20.396
	Median	41	38.5
	Range	(0–86)	(0–86)
AGE	Mean	37.08	32.55	18,410	0.0137
	Standard deviation	18.558	19.774
	Median	35	29
	Range	(0–85)	(1–78)
LEU	Mean	3.57	3.83	7654	<0.0001
	Standard deviation	0.205	0.197
	Median	3.56	3.83
	Range	(2.95–4.30)	(3.28–4.39)
PLA	Mean	5.12	5.33	8830	<0.0001
	Standard deviation	0.214	0.180
	Median	5.13	5.35
	Range	(4.00–5.69)	(4.64–5.87)
AL%	Mean	6.52	2.50	13,160	<0.0001
	Standard deviation	6.791	3545
	Median	4	1
	Range	(0–39)	(0–20)

Demographic and hematological status of patients from two groups based on serological outcomes in Dengue virus testing (DENV+ N = 322, DENV- N = 134). Gender (SEX), age (AGE, in years), leukocyte and platelet counts (respectively LEU and PLA, both in Log₁₀ cells/ml), percentage of atypical lymphocytes (AL%) and day of the first attendance at the Marilia Hemocenter (DAY, counted from March 07, 2007, when sampling started) were recorded for 456 patients. All test values are Mann–Whitney U comparisons among groups, except for SEX (X ² applied to a two-way contingency table). P-values lower than critical (P _c = 0.05/6 = 0.0083, considering six contrasts in a Bonferroni correction) were shown in bold

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