Table 3.

Factors related to incident DENV infection in cohort participants from Axochiapan and Tepalcingo, Morelos (2014–2016).

	HR	Robust standard error	p >|z|	95% confidence interval
Group
Seronegative	1
Seropositive with at least one previous infections	1.00	0.370	0.999	0.48	2.07
Seropositive with at least two previous infections	0.49	0.174	< 0.05	0.24	0.98
Age	1.01	0.007	0.156	1.00	1.02
Locality
Tepalcingo	1
Axochiapan	0.44	0.134	< 0.05	0.24	0.81

HR hazard ratio.