Biomonitoring of Acetylcholinesterase (AChE) Activity among Smallholder Horticultural Farmers Occupationally Exposed to Mixtures of Pesticides in Tanzania

Table 1

Demographic characteristics of the study population.

Variable	n	%
Region of respondent
Iringa (Kilolo)	108	71.5
Arusha (Ngarenanyuki)	43	28.5
Category of respondent
Exposed	90	59.6
Unexposed (control)	61	40.4
Age category of respondent
30–39 years	43	28.5
20–29 years	35	23.2
40–49 years	32	21.2
50–59 years	26	17.2
60 years and above	9	6.0
Less than 20 years	6	4.0
Sex of respondent
Male	111	73.5
Female	40	26.5
Working experience with pesticides
10 years and above	37	53.6
5–9 years	19	27.5
1–4 years	12	17.4
Less than one year	1	1.4
Total	69	100.0