Table 2 Factors associated with ZIKV infection in the Mexican population (n = 13,259).

From: Factors associated with infection and hospitalization of Zika cases during the 2016–2018 outbreak in Mexico

Variable

n (%)

Positive

Negative

Wald

Chi-square

p value

AOR (95% CI)

n (%)

n (%)

Sex

 Female

9,022 (68.0)

1,223 (86.2)

7,799 (65.9)

151.47

< 0.001*

2.86 (2.44–3.34)

 Male

4,237 (32.0)

196 (13.8)

4,041 (34.1)

  

Ref.

Age (years)

 0–9

1,146 (8.6)

37 (2.6)

1,109 (9.4)

19.11

< 0.001*

0.37 (0.24–0.58)

 10–19

1,543 (11.6)

109 (7.7)

1,434 (12.1)

0.92

0.338

0.84 (0.58–1.20)

 20–29

4,220 (31.8)

650 (45.8)

3,570 (30.2)

9.83

0.002*

1.66 (1.21–2.28)

 30–39

3,199 (24.1)

384 (27.1)

2,815 (23.8)

2.47

0.116

1.30 (0.94–1.79)

 40–49

1,643 (12.4)

118 (8.3)

1,525 (12.9)

2.15

0.143

0.77 (0.54–1.10)

 50–59

975 (7.4)

75 (5.3)

900 (7.6)

0.96

0.327

0.82 (0.56–1.21)

 ≥ 60

533 (4.0)

46 (3.2)

487 (4.1)

  

Ref.

  1. *Indicates significant p value < 0.05. Binary logistic regression analysis adjusted for sex and age. CI, confidence interval; AOR, adjusted odd ratio; Ref., Reference group. Data collected during the Zika outbreak in Mexico from August 2016 to January 2018 confirmed with RT-qPCR assays at the epidemiological surveillance laboratory network of the Mexican Social Security Institute.
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