Table 5 Multivariable analysis of the selected risk factors associated with the seroprevalence after the univariate analysis and AIC model selection procedure
| Â | Plasmodium falciparum | Plasmodium vivax | |||
|---|---|---|---|---|---|
Malariometric variable | CSP | Pf.MSP1.19 | Pf.GLURP.R2 | PvAMA1 | Pv.MSP1.19 |
Variable level | IRR [LCI–UCI] | IRR [LCI–UCI] | IRR [LCI–UCI] | IRR [LCI–UCI] | IRR [LCI–UCI] |
Age (years) | |||||
 2–5 | Reference | Reference | Reference | Reference | Reference |
 6–15 | 1.44 [1.33–1.57] | 1.30 [1.23–1.38] | 2.83 [2.54–3.15] | 1.40 [1.31–1.50] | 1.21 [1.14–1.28] |
 16–50 | 5.44 [5.03–5.89] | 1.68 [1.59–1.78] | 13.33 [12.02–14.77] | 1.98 [1.86–2.16] | 1.50 [1.42–1.59] |
 >50 | 11.82 [10.61–13.15] | 2.01 [1.86–2.16] | 17.90 [15.55–20.61] | 2.79 [2.55–3.05] | 1.99 [1.84–2.15] |
Gender | |||||
 Male | Reference | Reference | – | – | Reference |
 Female | 1.06 [1.01–1.12] | 1.04 [1.00–1.08] | – | – | 1.06 [1.02–1.10] |
Ethnicity | |||||
 Khmer | Reference | Reference | Reference | Reference | Reference |
 Ethnic Minority (EM) | 2.72 [2.38–3.12] | 1.33 [1.21–1.47] | 3.70 [3.11–4.41] | 1.31 [1.17–1.47] | 1.18 [1.07–1.31] |
Overnight plothut | |||||
 No | Reference | Reference | Reference | – | Reference |
 Yes | 1.12 [1.06–1.19] | 1.07 [1.03–1.11] | 1.24 [1.15–1.33] | – | 1.04 [1.00–1.09] |
Overnight forest | |||||
 No | Reference | – | – | – | Reference |
 Yes | 1.14 [1.05–1.23] | – | – | – | 1.07 [1.01–1.14] |