Table 2 Characteristics of the population who provided a blood sample by area of residence
Variables | Area 1 | Area 2 | Area 3 | Area 4 | Total |
|---|---|---|---|---|---|
N (%) | N (%) | N (%) | N (%) | N (%) | |
TOTAL | 30 (100) | 52 (100) | 47 (100) | 117 (100) | 246 (100) |
Sex | |||||
Males | 17 (56.7) | 25 (48.1) | 24 (51.1) | 61 (52.1) | 127 (51.6) |
Females | 13 (43.3) | 27 (51.9) | 23 (48.9) | 56 (47.9) | 119 (48.4) |
Age group (years) | |||||
25-34 | 4 (13.3) | 12 (23.1) | 6 (12.8) | 27 (23.1) | 49 (19.9) |
35-44 | 9 (30.0) | 12 (23.1) | 14 (29.8) | 29 (24.8) | 64 (26.0) |
45-54 | 6 (20.0) | 13 (25.0) | 9 (19.1) | 27 (23.1) | 55 (22.4) |
55-64 | 11 (36.7) | 15 (28.8) | 18 (38.3) | 34 (29.1) | 78 (31.7) |
Level of education | |||||
Primary school | 9 (30.0) | 19 (36.5) | 20 (42.5) | 75 (61.5) | 120 (48.8) |
High school | 18 (60.0) | 30 (57.7) | 21 (44.7) | 39 (33.3) | 108 (43.9) |
University degree | 3 (10.0) | 3 (5.77) | 6 (12.8) | 6 (5.13) | 18 (7.32) |
Smoking | |||||
Never | 14 (46.7) | 23 (44.2) | 19 (40.4) | 78 (66.7) | 134 (54.5) |
Yes | 16 (53.3) | 29 (55.8) | 28 (59.6) | 39 (33.3) | 112 (45.5) |
Distance from the river | |||||
> 5 km | 22 (73.3) | 6 (11.5) | 0 (0.0) | 4 (3.4) | 32 (13.0) |
> 2–5 km | 5 (16.7) | 22 (42.3) | 4 (8.5) | 4 (3.4) | 35 (14.2) |
1-2 km | 1 (3.3) | 16 (30.8) | 17 (36.2) | 42 (35.9) | 76 (30.9) |
500 m-1 km | 0 (0.0) | 5 (9.6) | 19 (40.4) | 37 (31.6) | 61 (24.8) |
< 500 m | 2 (6.7) | 3 (5.8) | 7 (14.9) | 30 (25.6) | 42 (17.1) |
Use of well water* | |||||
No | 29 (96.7) | 46 (88.5) | 45 (95.7) | 31 (26.5) | 151 (61.4) |
For drinking | 1 (3.3) | 1 (1.9) | 0 (0.0) | 28 (23.9) | 30 (12.2) |
For cooking | 0 (0.0) | 6 (11.5) | 2 (4.3) | 69 (59.0) | 77 (31.3) |
For personal cleaning | 0 (0.0) | 5 (9.6) | 0 (0.0) | 81 (69.2) | 86 (35.0) |
Someone else’s well | 1 (3.3) | 0 (0.0) | 0 (0.0) | 3 (2.6) | 4 (1.6) |
Any use | 1 (3.3) | 6 (11.5) | 2 (4.3) | 86 (73.5) | 95 (38.6) |
Provenience of food | |||||
Commercial | 11 (36.7) | 16 (30.8) | 24 (51.1) | 14 (12.0) | 65 (26.4) |
Local | 10 (33.3) | 25 (48.1) | 19 (40.4) | 55 (47.0) | 109 (44.3) |
Own production | 9 (30.0) | 11 (21.2) | 4 (8.5) | 48 (41.0) | 72 (29.3) |