Evidence of pre-existing active Zika virus circulation in Sudan prior to 2012

BMC Research Notes

Table 3 Summary for the multivariate logistic regression model testing association between Zika IgG and key factors

Factors	Odds ratio	Z-statistic	P-value*	95% confidence interval
Geographical zone
Zone (2)	1.2	1.01	0.31	0.84–1.71
Zone (3)	1.3	0.91	0.36	0.72–2.42
Zone (4)	1.4	1.29	0.19	0.85–2.17
Urban/rural residence
Urban	1.4	1.66	0.09	0.93–2.14
Age group (years)
15–39	2.1	2.61	0.01	1.20–3.70
40–65	2.2	2.63	0.01	1.21–3.86
> 65	2.2	1.76	0.07	0.92–5.14
Sex
Male	1.3	1.84	0.06	0.98–1.74

Reference groups are: Zone (1), rural settlements, younger age group < 15 years and female sex
* P-value cut-off for statistical significance ≤ 0.05

ISSN: 1756-0500