Table 2. The instantaneous association between village repellent distribution and Plasmodium spp. infection detected by RDT and PCR.
Factor | RDT | PCR | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
All species* (n = 32,194) |
All species (n = 13,157) |
P. falciparum† (n = 13,068) |
P. vivax† (n = 13,068) |
|||||||||
AOR | 95% CI | p-Value | AOR | 95% CI | p-Value | ARRR | 95% CI | p-Value | ARRR | 95% CI | p-Value | |
Intervention | ||||||||||||
No repellent | Ref. | — | — | Ref. | — | — | Ref. | — | — | Ref. | — | — |
Repellent | 0.25 | 0.004, 15.2 | 0.512 | 0.82 | 0.62, 1.09 | 0.180 | 0.67 | 0.47, 0.95 | 0.026 | 1.41 | 0.80, 2.47 | 0.233 |
Time (month) | 0.87 | 0.72, 0.97 | 0.013 | 0.97 | 0.89, 1.07 | 0.582 | 1.02 | 0.95, 1.11 | 0.523 | 0.95 | 0.87, 1.04 | 0.247 |
Season | ||||||||||||
Cool | Ref. | — | — | Ref. | — | — | Ref. | — | — | Ref. | — | — |
Hot | 3.64 | 0.89, 14.8 | 0.072 | 1.10 | 0.35, 3.44 | 0.871 | 0.81 | 0.27, 2.40 | 0.700 | 11.2 | 2.23, 56.2 | 0.003 |
Rainy | 3.15 | 0.89, 11.1 | 0.074 | 1.17 | 0.45, 3.02 | 0.747 | 0.46 | 0.17, 1.21 | 0.115 | 20.5 | 4.84, 86.6 | <0.001 |
Instantaneous treatment effect comparisons: AORs and ARRRs, 95% CIs, and p-values from generalised linear mixed modelling (GLMM) using generalised structural equation modelling (GSEM).
*All-species estimates from crossed random effects generalised (logit) linear mixed model with random effects for cross-sectional (month) and village-specific heterogeneity in infection, and village-specific heterogeneity in effect of repellent distribution.
†Species-specific (ARRR) estimates from crossed random effects generalised (multinomial) linear mixed model with random effects for cross-sectional (month) and village-specific heterogeneity in infection. No infection was the reference group for the outcome.
AOR, adjusted odds ratio; ARRR, adjusted relative risk ratio; PCR, polymerase chain reaction; RDT, rapid diagnostic test.