Table 1.

Neighbourhood characteristics of study participants: caregivers (n 25) of African-American children aged 3–11 years from six primarily African-American communities in metro Birmingham, AL, USA

Neighbourhood characteristic (by zip code)	Minimum	Maximum	Average
Percentage of African Americans	65·4	96·6	88·98
Percentage of families below the poverty level	11·0	30·3	23·23
Median household income ($US)	17 999	34 468	24 159
Percentage of school-age children	16·7	21·2	19·97

Source: US Census Bureau⁽⁴²⁾.