TABLE 2.

Univariate analysis of risk factors for positive sera of Sandfly Fever Sicilian virus (SFSV) and Toscana virus (TOSV): Proportion seropositive, odds ratios with 95% confidence intervals (CIs) and chi-square p-values for variables included in the analysis.

SFSV
Variable	Category	n	Seropositive proportion	Odds ratio	95% CI	Chi-square P-value
Location
	Alp	94	0.447	1.000
	Mallorca	16	0.500	1.238	0.428–3.577	0.693a
Year
	2018	19	0.895	1.000
	2019	54	0.500	0.118	0.024–0.559	0.007
	2021	37	0.162	0.023	0.004–0.125	<0.001
Age class
	Juveniles	29	0.345	1.000
	Adults	79	0.494	1.852	0.766–4.483	0.171
TOSV
Variable	Category	n	Seropositive proportion	Odds ratio	95% CI	Chi-square P-value
Location
	Alp	90	0.411	1.000
	Mallorca	16	0.500	1.432	0.493–4.160	0.509a
Year
	2018	19	0.368	1.000
	2019	51	0.569	2.300	0.764–6.684	0.141
	2021	36	0.250	0.571	0.172–1.896	0.360b
Age class
	Juveniles	28	0.500	1.000
	Adults	76	0.395	0.652	0.273–1.560	0.337

a: comparison between location (same year 2019) p-value = 0.504.

b: comparison between years (2019–2021) p-value = 0.011.