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Table 1 Baseline characteristics of participants enrolled in the longitudinal study and CSS in Korogwe and Muheza districts

From: Accuracy of malaria rapid diagnostic tests in community studies and their impact on treatment of malaria in an area with declining malaria burden in north-eastern Tanzania

Variable Longitudinal study
(Pre-RDTs)
Longitudinal study
(Post-RDTs)
CSS
Number of cases sampled/attended 5576 18217 5759
Mean age in years (range) 26.2(0, 96.0) 22.2(0, 98.2) 8.1(0, 20.0)
Age group (< 5 years, %) 1065(19.1) 4275(23.5) 2033(35.3)
Sex- Male (%) 42.9 46.0 45.4
Cases with fever
(axillary temperature ≥37.5°C, %)
1720(30.9) 5866(32.2) 176(3.1)
Cases with BS positive (%) 1130(20.5) 3779(20.8) 1045(18.2)
Cases wtih RDT Positive (%) NA 5038(27.8) 931(16.2)
PfGMPD* (95% CI) 3589(3081,4180) 5479(5051,5944) 489(428,558)
  1. CSS = cross-sectional surveys, % = percentage,°C = degree centigrade, BS = blood smears, RDTs = malaria rapid diagnostic tests, *PfGMPD = Plasmodium falciparum geometric mean parasite density (asexual parasites/μl), 95% CI = 95% confidence interval, NA = Not applicable