Variables | n | ZIKV IgM positive (%) | Crude OR (95% CI) | P-value | DENV IgG positive (%) (n = 83) | Anti-ZIKV NS1 IgG positive (%) (n = 88) | PRNT50 positive to ZIKV (%) | |
---|---|---|---|---|---|---|---|---|
Age group (years) | ≤15 | 87 | 11 (12.6) | 1.00 (Reference) | 0.05 | 4/11 (36.3) | 3/11 (27.3) | 2/87 (2.3) |
16–30 | 295 | 19 (6.4) | 0.48 (0.22–1.04) | 9/19 (47.4) | 3/21 (14.3) | 3/295 (1.0) | ||
31–45 | 241 | 31 (12.8) | 1.02 (0.49–2.13) | 18/31 (58.1) | 7/32 (21.9) | 3/241 (1.2) | ||
46–60 | 127 | 18 (14.2) | 1.14 (0.51–2.55) | 14/18 (77.8) | 4/18 (22.2) | 1/127 (0.8) | ||
≥60 | 35 | 3 (8.5) | 0.65 (0.17–2.48) | 3/3 (100) | 1/5 (20) | 3/35 (8.6) | ||
NAa | 16 | 1 (6.3) | 1/1 (100) | 1/1 (100) | 1/16 (6.3) | |||
Sex | Female | 590 | 59 (10) | 1.00 (Reference) | 0.57 | 32/59 (54.2) | 10/64 (15.6) | 7/590 (1.2) |
Male | 211 | 24 (11.4) | 1.15 (0.7–1.91) | 17/24 (70.8) | 9/24 (37.5) | 6/211 (2.8) | ||
Ethnicity | Ede | 290 | 25 (8.6) | 1.00 (Reference) | 0.16 | 15/25 (60.0) | 5/26 (19.2) | 3/290 (1.0) |
Kinh | 503 | 58 (11.5) | 1.42 (0.87–2.33) | 34/58 (58.6) | 14/62(22.6) | 10/503 (2.0) | ||
Otherb | 8 | 0 | 0/8 (0.0) | |||||
Pregnancy | 66 | 1 (1.5) | 0/1(0.0) | 0/1(0.0) | 0/66 (0.0) |