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Table 1 Characteristics of study participants across three screening campaigns

From: Lessons learned from the use of HRP-2 based rapid diagnostic test in community-wide screening and treatment of asymptomatic carriers of Plasmodium falciparum in Burkina Faso

  Campaign 1 Campaign 2 Campaign 3
Number of participants 5,633 5,718 6,154
Mean age (years) 24.4 23.9 23.0
Number (%) of females 2,617 (46.5) 2,664 (46.6) 2,863 (46.5)
Prevalence of P. falciparum infection (by microscopy), n (%)    
  0- <5 689 (12.2) 205 (3.6) 193 (3.1)
  5-9 971 (17.2) 318 (5.6) 271 (4.4)
  10-14 841 (14.9) 253 (4.4) 218 (3.5)
  ≥15 1,080 (19.1) 294 (5.1) 230 (3.7)
  Overall 3,581 (63.6) 1,070 (18.7) 912 (14.8)
Prevalence of P. falciparum infection (by HRP-2 test), n (%)    
  0- <5 606 (10.8) 238 (4.1) 86 (1.4)
  5-9 734 (13.0) 175 (3.0) 52 (0.8)
  10-14 674 (12.0) 114 (2.0) 49 (0.8)
  ≥15 1,060 (18.8) 336 (5.9) 190 (3.1)
  Overall 3,074 (54.6) 863 (15.1) 377 (6.1)
Frequency of P. falciparum infection by density cut-offs (parasites/μl), n (%)    
  1-99 798 (22.3) 272 (25.4) 258 (28.3)
  100-499 1,013 (28.3) 370 (34.6) 301 (33.0)
  500-999 599 (16.7) 182 (17.0) 148 (16.2)
  1,000-4,999 877 (24.5) 199 (18.6) 165 (18.1)
  ≥5,000 294 (8.2) 47 (4.4) 40 (4.4)
  Overall 3,581 (100.0) 1,070 (100.0) 912 (100.0)
Geometric mean P. falciparum density in positives by age (parasites/μl)    
  0- <5 1,348 702 756
  5-9 795 482 387
  10-14 406 273 241
  ≥15 168 127 111
  Overall 470 315 291
  1. Age was considered at cluster initiation. Percentages in prevalence subgroups are based on the total number of subjects in the respective subgroup.