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Table 1 Description of prevalence surveys included in the Atlas

From: An updated atlas of human helminth infections: the example of East Africa

  Burundi Kenya Rwanda Tanzania Uganda Total
Total number of surveys identified 41 1,329 138 410 694 2,612
Number individuals surveyed 21,971 212,910 20,665 49,638 55,092 360,276
Number of surveys reporting data on STH 31 (75.6) 856 (64.4) 134 (97.1) 321 (78.3) 606 (87.3) 1,948 (74.6)
   Hookworm 31 (75.6) 847 (63.7) 134 (97.1) 321 (78.3) 571 (82.3)) 1,904 (72.9)
   Ascaris lumbricoides 31 (75.6) 842 (63.4) 134 (97.1) 319 (77.8) 572 (82.4) 1,898 (72.7)
   Trichuris trichiura 31 (75.6) 785 (59.1) 134 (97.1) 319 (77.8) 571 (82.3) 1,840 (70.4)
Number of surveys reporting data on schistosomiasis 41 (100) 1,175 (88.4) 138 (100) 357 (87.1) 694 (100) 2,405 (92.1)
   Schistosoma haematobium 31(75.6) 625 (47.0) 134 (97.1) 345 (84.2) 66 (9.5) 1,170 (44.8)
   S. mansoni 41 (100) 661 (49.7) 138 (100) 267 (65.1) 656 (94.5) 1,763 (67.5)
Sources of survey       
   Published paper 41 (100) 277 (20.8) 4 (2.9) 375 (91.5) 399 (57.5) 1,096 (42.0)
   Unpublished report 0 (0.0) 39 (2.9) 0 (0.0) 3 (0.7) 0 (0.0) 42 (1.6)
   MoH report 0 (0.0) 904 (68.0) 0 (0.0) 0 (0.0) 0 (0.0) 904 (34.6)
   Personal communication 0 (0.0) 108 (8.1) 134 (97.1) 7 (1.7) 295 (42.5) 544 (20.8)
   Thesis 0 (0.0) 1 (0.1) 0 (0.0) 25 (6.1) 0 (0.0) 26 (1.0)
Stool examination method       
   Kato-Katz 41(100) 471 (51.3) 134 (97.1) 328 (100) 652 (99.4) 1,626 (78.1)
   Formalin-ether and other concentration techniques1 0 (0.0) 22 (2.4) 0 (0.0) 0 (0.0) 1 (0.2) 2 (1.1)
   Direct smear 0 (0.0) 26 (2.8) 0 (0.0) 0 (0.0) 0 (0.0) 26 (1.3)
   Unknown 0 (0.0) 401 (43.6) 4 (2.9) 0 (0.0) 3 (0.5) 408 (19.6)
Urine examination method       
   Urine filtration 31(100) 136 (21.7) 134 (100) 316 (91.6) 38 (57.6) 624 (53.3)
   Centrifugation and sedimentation 0 (0.0) 0 (0.0) 0 (0.0) 2 (0.6) 0 (0.0) 2 (0.2)
   Reagent strips 0 (0.0) 47 (7.5) 0 (0.0) 26 (7.5) 0 (0.0) 73 (6.2)
   Circulating cathodic antigens 0 (0.0) 0 (0.0) 0 (0.0) 1 (0.3) 27 (40.9) 28 (2.4)
   Unknown 0 (0.0) 442 (70.7) 0 (0.0) 0 (0.0) 1 (1.5) 443 (37.9)
Location of surveys       
   Schools 32 (78.1) 1,224 (92.1) 134 (97.1) 383 (93.4) 589 (84.9) 2,362 (90.4)
   Communities 0 (0.0) 78 (5.9) 4 (2.9) 27 (6.6) 100 (14.4) 209 (8.0)
   Other 9 (22.0) 27 (2.0) 0 (0.0) 0 (0.0) 5 (0.7) 41 (1.6)
   Rural 32 (78.1) 1,251 (94.1) 130 (94.2) 373 (91.0) 631 (90.9) 2,417 (92.5)
   Urban 5 (12.2) 25 (1.9) 6 (4.4) 21 (5.1) 55 (7.9) 112 (4.3)
   Peri-Urban 4 (9.8) 53 (4.0) 2 (1.5) 16 (3.9) 8 (1.2) 83 (3.2)
Age ranges examined       
   0–4 years 0 (0.0) 37 (2.8) 0 (0.0) 23 (5.6) 24 (3.5) 84 (3.2)
   5–16 years 41 (100) 1,209 (91.0) 134 (97.1) 366 (89.3) 593 (85.5) 2,343 (89.7)
   16+ years 0 (0.0) 3 (0.2) 0 (0.0) 6 (1.5) 0 (0.0) 9 (0.3)
   All ages 0 (0.0) 80 (6.0) 4 (2.9) 15 (3.7) 77 (11.1) 176 (6.7)