Table 2. Epidemiological parameters grouped in different IgG reactivity profiles.

Epidemiological parameters	PvMSP9E795-A808 (+) PvMSP9-RIRII (+) (n = 177)	PvMSP9E795-A808 (-) PvMSP9-RIRII (+) (n = 139)	PvMSP9E795-A808 (-) PvMSP9-RIRII (-) (n = 230)
Years of residence in endemic area (Median-IQ)	29 (20–45) ###	26.5 (17–37) ***	19 (15–28) ***; ###
Months elapsed since the last malaria episode (Median-IQ)	24 (2–72) #	16 (2–72) *	12 (2–48) *; #
Number of previous malaria infections (Median-IQ)	5 (2–10)	5 (2–10)	5 (2–10)
Infections in the current year (Mean+SD)	0.44 ± 0.98	0.64 ± 1.46	0.68 ± 1.34
Infected by P. vivax at the moment of collection (N—%)	16 (9%)	6 (4%)	25 (11%)

Differences in proportions of number of individuals infected by P. vivax at the moment of collection were evaluated by the chi-square test (χ2) and comparisons of epidemiological parameters were made using the Mann Whitney test.

Significant differences between responders and non-responders to both antigens were indicated in the table by

#: p<0.05

##: p<0.001

###: p<0.0001.

Significant differences between responders to PvMSP9-RIRII only and non-responders were indicated in the table by

*: p<0.05

**: p<0.001

***: p<0.0001.

Statistical differences on epidemiological parameters were not observed between responders and non-responders to PvMSP9_E795-A808.