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Table 1 Population invited to the survey, respondents to questionnaire, eligible to and giving a blood sample, by sub-area of residence, gender and age

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

  Males Females Total
25-44 45-64 25-44 45-64
  N % N % N % N % N %
Area 1
Subjects invited to the survey 13 100 13 100 20 100 20 100 66 100
Subjects responding of the questionnaire* 11 84.6 9 69.2 7 35.0 16 80.0 43 65.2
Subjects eligible to give blood sample 10 100 10 100 5 100 14 100 39 100
Subjects providing a valid blood sample** 8 80.0 9 90.0 5 100 8 57.1 30 76.9
Area 2
Subjects invited to the survey 25 100 25 100 40 100 40 100 130 100
Subjects responding of the questionnaire* 22 88.0 25 100 31 77.5 39 97.5 117 90.0
Subjects eligible to give blood sample 15 100 27 100 16 100 34 100 92 100
Subjects providing a valid blood sample** 12 80.0 13 48.1 12 75.0 15 44.1 52 56.5
Area 3
Subjects invited to the survey 25 100 25 100 40 100 40 100 130 100
Subjects responding of the questionnaire* 13 52.0 18 72.0 28 70.0 32 80.0 91 70.0
Subjects eligible to give blood sample 11 100 18 100 12 100 28 100 69 100
Subjects providing a valid blood sample** 11 100 13 72.2 9 75.0 14 50.0 47 68.1
Area 4
Subjects invited to the survey 60 100 60 100 90 100 90 100 300 100
Subjects responding of the questionnaire* 56 93.3 60 100 78 87 64 71.1 258 86
Subjects eligible to give blood sample 50 100 58 100 37 100 59 100 204 100
Subjects providing a valid blood sample** 27 54 34 58.6 29 78 27 45.8 117 57.4
Total
Subjects invited to the survey 123 100 123 100 190 100 190 100 626 100
Subjects responding of the questionnaire* 102 82.9 112 91.1 144 76 151 79.5 509 81.3
Subjects eligible to give blood sample 86 100 113 100 70 100 135 100 404 100
Subjects providing a valid blood sample** 58 67.4 69 61.1 55 79 64 47.4 246 60.9
  1. * Percentage of the subjects invited to the survey.
  2. ** Percentage of the subjects eligible to give blood sample.