Table 2 Characteristics of patients with secondary (N = 36) and primary DENV infection (N = 12)

Sex, n(%)^a

Male

19 (52.8 %)

6 (50.0 %)

Female

17 (47.2 %)

6 (50.0 %)

Age (year), median (range)^b

31.5 (16–54)

23.5 (17–45)

Body mass index (kg/m²), mean (SD)^c

21.62 (15.40-33.06)

21.93 (16.65-30.04)

IgM index value, mean (SD)^c

2.28 (0.37)

2.82 (0.93)

IgG index value, mean (SD)^c

4.05 (0.17)

0.17 (0.07)

IgG/ IgM ratio, median (range)^c

3.28 (0.54)

0.18 (0.11)

Platelet (/μl),mean (SD)^c

109,938.9 (51,073.61)

149,691.7 (55,029.6)