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. 2020 Oct 27;9:e59872. doi: 10.7554/eLife.59872

Table 1. Behavioral risk factors for malaria infection and measures of malaria burden in study population, stratified by age and sex.

Metric Age and gender categories
All <5 years old 5–15 years old 16 years and older
Male Female Male Female Male Female Male Female
Number of participants, n 233 244 73 84 101 71 59 89
Median days of follow-up per participant 530.0 530.0 525.0 524.5 530.0 531.0 530.0 530.0
Slept under LLIN the previous night 53.6% 56.3% 54.1% 56.3% 47.9% 47.8% 63.7% 64.3%
Person-years of follow-up 324.2 345.4 87.3 96.7 152.6 118.5 84.22 130.1
Number of overnight trips 44 107 21 19 9 10 14 78
Incidence of overnight trips*, (95% CI) 0.14
(0.09–0.20)
0.31
(0.20–0.49)
0.24
(0.14–0.42)
0.20
(0.09–0.42)
0.06
(0.03–0.13)
0.08
(0.03–0.24)
0.17
(0.09–0.31)
0.60
(0.30–1.18)
Episodes of malaria* 11 13 5 2 5 9 1 2
Incidence of malaria**, (95% CI) 0.03
(0.02–0.06)
0.04
(0.02–0.09)
0.06
(0.02—0.16)
0.02
(0.00–0.11)
0.03
(0.01–0.08)
0.08
(0.03–0.23)
0.01
(0.00–0.08)
0.02
(0.00–0.17)
Number of routine visits, n 4316 4583 1164 1293 2034 1568 1118 1722
Prevalence of microscopic parasitemia*** 2.9% 1.4% 1.8% 1.1% 4.4% 2.7% 1.3% 0.5%
Prevalence of parasitemia by qPCR 14.4% 9.2% 5.8% 3.7% 17.0% 15.3% 18.5% 7.7%
Geometric mean parasite density**** 3.41 3.06 4.86 13.06 6.31 4.20 1.09 1.02
Median complexity of infection, (IQR) 3 (1–7) 2 (1–2) 1 (1–2.5) 2 (1–2.3) 4 (2–9) 2 (1–2) 1 (1–2) 1 (1–2)

*Malaria includes one episode (female,<5 years old), due to non-falciparum species (P. malariae).

**per person-year.

***Parasitemia by light microscopy includes one episode (female, 5–15 years old) due to non-falciparum species (P. ovale).

****Geometric mean parasite density in parasites/µL of all qPCR-positive routine visits.