Table 3. Annual seroconversion and seroreversion rate estimates by the superinfection model based on antigen-specific antibodies.

Antigen	Survey	Site	Number of subjects (N = 609)	% seropositive (95%CI) *	Seroconversion rate (95%CI)	Reversion rate (95%CI)
AMA1	Rainy season	Dam	134	61.4 (52.7, 69.3)	0.354 (0.180, 0.696)	0.299 (0.128, 0.698)
		No Dam	166	64.5 (56.8, 71.4)	0.369 (0.213, 0.639)	0.273 (0.137, 0.541)
		Both	300	63.1 (57.4, 68.4)	0.360 (0.236, 0.550)	0.282 (0.165, 0.480)
	Dry season	Dam	147	53.1 (44.9, 61.0)	0.189 (0.098, 0.365)	0.179 (0.071, 0.451)
		No Dam	162	56.5 (48.7, 64.0)	0.224 (0.127, 0.396)	0.194 (0.088, 0.427)
		Both	309	54.9 (49.3, 60.4)	0.208 (0.135, 0.321)	0.189 (0.104, 0.344)
CeITOS	Rainy season	Dam	134	23.5 (17.0, 31.5)	0.040 (0.019, 0.086)	0.064 (0.011, 0.374)
		No Dam	166	28.3 (21.9, 35.7)	0.071 (0.035, 0.144)	0.135 (0.047, 0.393)
		Both	300	26.2 (21.5, 31.5)	0.055 (0.032, 0.092)	0.099 (0.040, 0.248)
	Dry season	Dam	147	5.4 (2.7, 10.6)	0.008 (0.001, 0.042)	0.064 (0.001, 3.281)
		No Dam	162	6.2 (3.4, 11.2)	0.007 (0.002, 0.031)	0.033 (0.000, 7.559)
		Both	309	5.8 (3.7, 9.1)	0.007 (0.002, 0.022)	0.045 (0.002, 1.217)
CSP	Rainy season	Dam	134	87.1 (80.2, 91.9)	0.500 (0.292, 0.857)	0.121 (0.036, 0.410)
		No Dam	166	81.9 (75.3, 87.1)	0.359 (0.237, 0.545)	0.077 (0.025, 0.240)
		Both	300	84.2 (79.6, 88.0)	0.414 (0.300, 0.571)	0.094 (0.042, 0.211)
	Dry season	Dam	147	54.4 (46.3, 62.4)	0.085 (0.052, 0.138)	0.002 (0.000, 3.270)
		No Dam	162	49.1 (41.4, 56.8)	0.072 (0.044, 0.118)	0.001 (0.000, 2.630)
		Both	309	51.6 (46.0, 57.2)	0.078 (0.055, 0.110)	0.001 (0.000, 6.680)

*For each antigen, a seropositivity cut-off was estimated using combined log₁₀-transformed antibody OD data from both communities over the two survey time points (calculated as the back-transformed log₁₀-mean OD of the negative distribution + log₁₀-three times the standard deviation, Fig 2).