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Research Article

Table 2

Age distribution and prevalence of helminths in population. A and B are single and mixed infection cases, respectively.

Age group No. of faeces examined Helminthic infection rates Single infection rates Single infection (A)
Mixed infections (B)
Al Tt Hw Tae MIF
<15 18 (1.8%) 10/18 (55.6%) 9 (50.0%) 7 (38.9%) 2 (11.1%) 0 0 0 1 (5.6%)
15–25 178 (18.1%) 74/178 (41.6%) 68 (38.2%) 40 (22.5%) 11 (6.2%) 9 (5.0%) 4 (2.2%) 1 (0.6%) 6 (3.4%)
26–35 256 (26.0%) 95/256 (37.1%) 81 (31.6%) 37 (14.5%) 17 (6.6%) 14 (5.5%) 8 (3.1%) 4 (1.6%) 14 (5.5%)
36–45 257 (26.1%) 108/257 (42.0%) 98 (38.1%) 48 (18.7%) 13 (5.0%) 28 (10.9%) 9 (3.5%) 4 (1.6%) 10 (3.9%)
46–55 145 (14.8%) 66/145 (44.5%) 53 (36.6%) 28 (19.3%) 8 (5.5%) 7 (4.8%) 5 (3.4%) 5 (3.4%) 13 (9.0%)
56–65 86 (8.7%) 45/86 (52.3%) 40 (46.5%) 24 (27.9%) 6 (7.0%) 10 (11.6%) 1 (1.2%) 0 5 (5.8%)
>65
43 (4.4%)
22/43 (51.2%)
18 (41.9%)
5 (11.6%)
5 (11.6%)
3 (7.0%)
1 (2.3%)
3 (7.0%)
4 (9.3%)
Age group No. of faeces examined Mixed infections Type of mixed infection (B)
Al-Tt
Al-Hw
Tae-Al
Tt-Hw
Tae-Hw
Tt-MIF
Tae-MIF
Tae-Al-Tt
Al-Tt-Hw
Tt-Hw-MIF
Tae-Tt-Hw
<15 18 (1.8%) 1 (5.5%) 1 (5.5%) 0 0 0 0 0 0 0 0 0 0
15–25 178 (18.1%) 6 (3.4%) 3 (4.1%) 1 (0.6%) 0 1 (0.6%) 0 0 0 0 1 (0.6%) 0 0
26–35 256 (26.0%) 14 (5.5%) 2 (0.8%) 2 (0.8%) 2 (0.8%) 4 (1.6%) 1 (0.4%) 0 0 1 (0.4%) 2 (0.8%) 0 0
36–45 257 (26.1%) 10 (3.9%) 3 (1.2%) 2 (0.8%) 0 1 (0.4%) 0 0 0 0 3 (1.2%) 0 1 (0.4%)
46–55 145 (14.6%) 13 (9.0%) 5 (3.4%) 3 (2.1%) 1 (0.7%) 1 (0.7%) 0 1 (0.7%) 1 (0.7%) 0 1 (0.7%) 0 0
56–65 86 (8.7%) 5 (5.8%) 1 (1.2%) 3 (3.5%) 0 0 0 0 0 0 1 (1.2%) 0 0
>65 43 (4.4%) 4 (9.3%) 1 (2.3%) 0 0 0 1 (2.3%) 0 0 0 0 2 (4.7%) 0

Al: Ascaris lumbricoides; Tt: Trichuris trichiura; Hw: hookworm; Tae: Taenia spp.; MIF: minute intestinal flukes.

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