Table 1 Socioeconomic characteristics of children aged ≤ 10 years enrolled in a population-based case-control study to identify risk factors for Salmonella infections, Michigan, 2007.
Socioeconomic characteristics | Cases n = 123 | Controls n = 139 | p-value* | ||
|---|---|---|---|---|---|
No. | (%) | No. | (%) | ||
Age (year) | 0.54 | ||||
< 1 | 22 | (17.89) | 25 | (17.99) | |
1-<6 | 66 | (53.66) | 66 | (47.48) | |
6-10 | 35 | (28.46) | 48 | (34.53) | |
Sex | 0.86 | ||||
Female | 66 | (53.66) | 76 | (54.68) | |
Male | 57 | (46.34) | 63 | (45.32) | |
Race | < 0.01* | ||||
Caucasians | 107 | (87.70) | 92 | (67.15) | |
African-Americans | 9 | (7.38) | 27 | (19.71) | |
Other minorities (e.g., Asian, Alaskan Indian) | 6 | (4.92) | 18 | (13.14) | |
Parental education | 0.94 | ||||
Elementary to High school | 30 | (24.39) | 33 | (23.91) | |
Some college to college degree | 72 | (58.54) | 85 | (61.59) | |
Post-graduate degree | 19 | (15.45) | 18 | (13.04) | |
Refused to answer | 2 | (1.63) | 2 | (1.45) | |
Annual income household | 0.34 | ||||
<$ 35,000 | 26 | (21.31) | 25 | (18.12) | |
$35,001- $50,000 | 17 | (13.93) | 17 | (12.32) | |
$50,001- $75,000 | 28 | (22.95) | 39 | (28.26) | |
>$75,000 | 38 | (31.15) | 33 | (23.91) | |
Refused to answer | 13 | (10.66) | 24 | (17.39) | |
Area of residence | 0.31 | ||||
High income: $>60000 | 31 | (25.20) | 35 | (25.18) | |
Medium income: $38000 - $60000 | 56 | (45.53) | 74 | (53.24) | |
Low income: $<38000δ | 36 | (29.27) | 30 | (21.58) | |