Variables | Tested, N | Eggs positive, n (%) | χ2 or Fisher’s exact test | Intensity of infection | χ2 or Fisher’s exact test | |
Light, n (%) | Heavy, n (%) | |||||
Age group | ||||||
18–34 years | 131 | 37 (28.2) | χ2=7.6 P=0.048 | 21 (16.0) | 16 (12.2) | Fisher’s=11.3 P=0.049 |
35–49 years | 60 | 10 (16.7) | 5 (8.3) | 5 (8.3) | ||
50–65 years | 41 | 4 (9.8) | 4 (9.8) | 0 (0.0) | ||
˃65 years | 13 | 3 (23.1) | 3 (23.1) | 0 (0.0) | ||
Marital status | ||||||
Married | 107 | 14 (13.1) | χ2=9.8 P=0.044 | 12 (11.1) | 2 (1.9) | Fisher’s=28.8 P<0.001 |
Cohabiting | 11 | 3 (27.3) | 2 (18.2) | 1 (9.1) | ||
In relationship | 85 | 4 (28.6) | 7 (8.2) | 16 (18.8) | ||
Divorced/widower | 14 | 23 (27.1) | 4 (28.6) | 0 (0.0) | ||
Single | 28 | 10 (35.7) | 8 (28.6) | 2 (7.1) | ||
Education | ||||||
Never attended | 40 | 14 (35.0) | Fisher’s=5.3 P=0.126 | 8 (20.0) | 6 (15.0) | Fisher’s=7.2 P=0.342 |
Primary | 164 | 34 (20.7) | 22 (13.4) | 12 (7.3) | ||
Secondary | 40 | 6 (15.0) | 3 (7.5) | 3 (7.5) | ||
Postsecondary | 1 | 0 (0.0) | 0 (0.0) | 0 (0.0) | ||
Occupation | ||||||
Peasants | 184 | 40 (21.7) | Fisher’s=1.3 P=0.905 | 27 (14.7) | 13 (7.1) | Fisher’s=6.9 P=0.456 |
Petty business | 26 | 5 (19.2) | 3 (11.5) | 2 (7.7) | ||
Other self employed | 22 | 6 (27.3) | 3 (13.6) | 3 (13.6) | ||
Employed | 3 | 1 (33.3) | 0 (0.0) | 1 (33.3) | ||
None | 10 | 2 (20.0) | 0 (0.0) | 2 (20.0) | ||
Village | ||||||
Mahumbika | 64 | 5 (7.8) | χ2=12.6 P=0.002 | 3 (4.7) | 2 (3.1) | χ2=21.7 P<0.001 |
Mtua Longa | 115 | 27 (23.5) | 21 (18.3) | 6 (5.2) | ||
Nyengedi A | 66 | 22 (33.3) | 9 (13.6) | 13 (19.7) | ||
Time of stay in the respective village | ||||||
0.6–1 year | 4 | 0 (0.0) | Fisher’s=2.1 P=0.557 | 0 (0.0) | 0 (0.0) | Fisher’s=3.5 P=0.668 |
2–5 years | 11 | 4 (36.4) | 2 (18.2) | 2 (18.2) | ||
6–10 years | 10 | 2 (20.0) | 2 (20.0) | 0 (0.0) | ||
Above 10 years | 220 | 48 (21.8) | 29 (13.2) | 19 (8.6) |