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Table 2 Characteristics of the population who provided a blood sample by area of residence

From: A biomonitoring study on blood levels of beta-hexachlorocyclohexane among people living close to an industrial area

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)
  1. Area 1: reference; Area 2: Colleferro urban/rural; Area 3: industrial; Area 4: river.
  2. * Responses are not mutually exclusive.