Prevalence of subpatent Plasmodium falciparum infections in regions with varying transmission intensities and implications for malaria elimination in Mainland Tanzania

Table 3 Logistic regression analysis to determine the odds of subpatent infections among RDT-negative samples from 14 regions of Mainland Tanzania

Characteristics	Health facilities survey		Community survey
Characteristics	uOR, 95% CI, p-value	aOR, 95% CI, p-value	uOR, 95% CI, p-value	aOR, 95% CI, p-value
Transmission strata
High	Reference	Reference	Reference	Reference
Moderate	1.11 (0.69–1.78), 0.66	1.10 (0.69–1.77), 0.69	2.04 (1.31- 3.17), 0.002	2.05 (1.31–3.21), 0.002
Low	1.34 (0.89–2.02), 0.16	1.35 (0.89–2.04), 0.148
Very low	0.48 (0.33–0.70), < 0.001	0.53 (0.37–0.78), < 0.001
Sex
Male	Reference		Reference
Female	1.01 (0.76- 1.34), 0.95		1.27 (0.76–2.13), 0.37
History of fever (past 48 h) group^b
No	Reference		Reference
Yes	0.76 (0.48- 1.20), 0.24		1.26 (0.81–1.98), 0.31
Fever at presentation (atemp ≥ 37.5 °C)
No	Reference
Yes	1.08 (0.81- 1.42), 0.60
Age group
< 5 years	1.82 (1.38–2.4), < 0.001	1.40 (1.04–1.88),0.03	0.33 (0.15–0.72),0.005	0.33 (0.15–0.72),0.005
5–14 years	1.45 (0.97–2.17), 0.07	1.29 (0.85–1.94), 0.23	0.69 (0.39–1.20), 0.19	0.67 (0.38–1.18), 0.16
15 + years	Reference	Reference	Reference	Reference

^a,bDuring health facility surveys, recruited patients either had history of fever or measured figure at point of enrolment, such that patients that did not present with fever, were enrolled due to their history of fever in the past 48 h
atemp axillary temperature, aOR adjusted odds ratio, uOR unadjusted odds ratio

ISSN: 1475-2875