Table 2.

Characteristics of study samples

Study sites	Character	2011	2012	2013	2014	p-value
Franceville	No of subjects	29	30	27	28
	Sex ratio (M/F)	1.9	1.14	0.92	0.59
	Mean age	53.39 (6–154)	58.20 (13–166)	78.96 (41–168)	66.20 (24–156)	0.49
	Geometric parasitemia	7,068.68 (350–147,500)	9,982.81 (100–200,000)	17,022.40 (1,750–453,600)	8,878.64 (420–369,600)	0.29
Koulamoutou	No of subjects			29	30
	Sex ratio (M/F)			0.93	1.5
	Mean age			41.87 (8–168)	50.19 (5–156)	0.75
	Geometric parasitemia			2,905.12 (72–31, 320)	2,192.31 (72–37, 440)	0.59
Lastourville	No of subjects			30	30
	Sex ratio (M/F)			1.73	1.14
	Mean age			36.07 (12–108)	36.23 (10–156)	0.36
	Geometric parasitemia			17,754.41 (105–425,600)	16,586.84 (1,260–285,600)	0.5

Notes: Geometric means of age (months) with interquartile ranges; geometric means of parasitemia (parasites/mL) with interquartile ranges.

Abbreviations: F, female; M, male.