High Carriage Rate of Extended-Spectrum β-Lactamase-Producing Escherichia coli and Klebsiella Species among Poultry Meat Vendors in Dar es Salaam: The Urgent Need for Intervention to Prevent the Spread of Multidrug-Resistant Pathogens

Table 2

Demographic distribution of study participants.

Variables	Frequency/mean ± SD	Percentage (%)
Mean age (years)	27.2 ± 6.7
Age group (years)
<25	138	46.0
25–30	85	28.3
>30	77	25.6
Sex
Male	202	67.3
Female	98	32.7
Districts of business
Ubungo	50	16.7
Ilala	60	20.0
Temeke	70	23.3
Kigamboni	40	13.3
Kinondoni	80	26.7
Duration in the business
Three months to one year	76	25.3
More than one year	224	74.7
Preference for self-medication
Yes	151	50.3
No	149	49.7

SD: standard deviation.