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Table 1 Prevalence (%) of intestinal parasites stratified by year

From: Prevalence of intestinal parasitic infections in Hawassa University students’ clinic, Southern Ethiopia: a 10-year retrospective study

Parasite Year 1
No. (%)
Year 2
No. (%)
Year 3
No. (%)
Year 4
No. (%)
Year 5
No. (%)
Year 6
No. (%)
Year 7
No. (%)
Year 8
No. (%)
Year 9
No. (%)
Year 10
No. (%)
Overall prevalence
Hw 26 (2.1) 14 (1.1) 89 (5.5) 44 (2.4) 27 (2.2) 31 (2.2) 7 (0.8) 19 (1.2) 5 (0.3) 8 (0.7) 270 (2.0)
Al 26 (2.1) 35 (2.9) 125 (7.7) 240 (13.2) 155 (12.4) 177 (12.3) 96 (11.1) 457 (30.0) 327 (22.3) 408 (34.5) 2046 (15.0)
Ev 3 (0.2) 0 (0.0) 1 (0.1) 1 (0.1) 0 (0.0) 2 (0.1) 0 (0.0) 2 (0.1) 4 (0.3) 2 (0.2) 15 (0.1)
Tt 2 (0.2) 1 (0.1) 10 (0.6) 2 (0.1) 5 (0.4) 4 (0.3) 2 (0.2) 2 (0.1) 4 (0.3) 0 (0.0) 32 (0.2)
Sm 9 (0.7) 7 (0.6) 10 (0.6) 2 (0.1) 1 (0.1) 1 (0.1) 1 (0.1) 0 (0.0) 0 (0.0) 1 (0.1) 32 (0.2)
Ts 7 (0.6) 17 (1.4) 22 (1.3) 25 (1.4) 7 (0.6) 20 (1.4) 12 (1.4) 45 (3.0) 43 (2.9) 43 (3.6) 241 (1.8)
Hn 11 (0.9) 11 (0.9) 36 (2.2) 11 (0.6) 5 (0.4) 10 (0.7) 5 (0.6) 4 (0.3) 2 (0.1) 5 (0.4) 100 (0.7)
Ss 2 (0.2) 10 (0.8) 12 (0.7) 5 (0.3) 1 (0.1) 2 (0.1) 2 (0.2) 1 (0.1) 0 (0.0) 0 (0.0) 35 (0.3)
Overall prevalence of helminthes 2771 (20.3)
 Eh/d 267 (21.1) 299 (24.4) 392 (24.0) 287 (15.8) 203 (16.3) 284 (19.7) 240 (27.7) 208 (13.7) 122 (8.3) 162 (13.7) 2464 (18.0)
 Gl 97 (7.6) 89 (7.3) 318 (19.5) 244 (13.5) 136 (10.9) 146 (10.1) 51 (5.9) 74 (4.9) 98 (6.7) 65 (5.5) 1318 (9.6)
Overall protozoan infections 3782 (27.6)
 Prevalence in each year 450 (35.5) 483 (39.4) 1015 (62.3) 861 (47.5) 540 (43.3) 677 (47.0) 416 (48.0) 812 (53.4) 605 (41.2) 694 (58.8) 6553 (47.9)
 Total Sample 1268 1227 1630 1813 1246 1439 867 1522 1468 1181 13,679
  1. Hw, Hookworm Species; Al, Ascaris lumbricoides; Ev, Enterobius vermicularis; Tt, Trichuris trichiura; Sm, Schistosoma mansoni; Ts, Taenia species; Hn, Hymenolepis nana; Ss, Strongyloides stercoralis; Eh/d, Entamoeba histolytica/dispar; Gl, Giardia lamblia