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. 2017 Sep 1;6:e23708. doi: 10.7554/eLife.23708

Table 4. Multivariable predictors of Pv- and Pf-molFOB per follow-up interval.

Model predictions from this model were used for mapping molFOB in Figure 3A.

Variable P. vivax P. falciparum
PQ arm Placebo arm Combined arms
IRR* CI95 p-value IRR* CI95 p-value IRR* CI95 p-value
PQ treatment n.a. n.a. n.a. n.a. n.a. n.a. 0.89 0.65–1.22 0.474
New P. falc. infections in interval 1.32 0.92–1.89 0.134 1.10 0.85–1.42 0.466 n.a. n.a. n.a.
New P. vivax infections in interval n.a. n.a. n.a. n.a. n.a. n.a. 1.15 0.97–1.36 0.100
Age 0.86 0.74–1.01 0.059 0.95 0.87–1.04 0.305 1.03 0.92–1.14 0.640
LLIN use at enrolment 0.96 0.51–1.79 0.897 0.62 0.43–0.91 0.013 1.07 0.7–1.62 0.755
Hb at enrolment (g/dl) 0.85 0.72–1.01 0.063 0.91 0.85–0.99 0.025 0.85 0.75–0.97 0.013
Village
 Albinama (ref) 1 1 1
 Amahup 0.02 0–0.11 <0.001 0.56 0.34–0.91 0.020 0.52 0.25–1.07 0.074
 Balif 0.85 0.4–1.8 0.664 1.74 1.16–2.61 0.007 1.81 0.98–3.35 0.059
 Balanga 0.28 0.1–0.82 0.020 1.13 0.73–1.73 0.590 0.75 0.37–1.52 0.423
 Bolumita 1.52 0.73–3.17 0.268 2.67 1.83–3.9 <0.001 6.05 3.32–11.05 <0.001
 Numangu 0.5 0.15–1.68 0.264 0.76 0.4–1.43 0.394 2.8 1.39–5.64 0.004
Study Day
 Day 0–35 (ref) 1 1 1
 Day 36–80 1.37 0.54–3.48 0.509 1.99 1.39–2.84 <0.001 2.42 1.44–4.07 0.001
 Day 81–175 1.34 0.57–3.12 0.503 0.89 0.61–1.3 0.538 1.13 0.7–1.84 0.616
 Day > 175 0.65 0.25–1.69 0.374 0.56 0.38–0.83 0.004 0.87 0.48–1.56 0.643

*IRRs were modeled per sampling interval using negative binomial generalized estimating equations allowing for repeated visits with log-link and an exchangeable correlation structure.

† n.a., not applicable.

molFOB in the follow-up interval (time-varying covariate).

PQ: Primaquine; LLIN: long-lasting insecticide-treated net; Hb: haemoglobin.