Table 1 Descriptive statistics of the study population and univariate analysis of predictors of T. gondii seropositivity
Variable | Level | Participants, N (% of total) | T. gondii seropositive, N (row %) | p value |
|---|---|---|---|---|
All participants | Â | 694 (100%) | 67 (9.7%) | na |
Subset of participants by recruitment site | EPA | 348 (50%) | 25 (7.2%) | Â |
NIEHS | 346 (50%) | 42 (12.1%) | 0.03 | |
Age (years) | 18-29 | 206 (30%) | 5 (2.4%) | Â |
30-39 | 138 (20%) | 8 (5.8%) | Â | |
40-49 | 130 (19%) | 18 (14%) | Â | |
50-59 | 152 (22%) | 21 (14%) | Â | |
60-85 | 68 (10%) | 15 (22%) | < 0.0001* | |
BMI (kg/m2) | Underweight (<  18.5) | 7 (1.0%) | 1 (14%) |  |
Normal Weight (18.5 - 24.9) | 226 (33%) | 18 (8.0%) | Â | |
Overweight (25.0 - 29.9) | 209 (30%) | 21 (10%) | Â | |
Obese (≥ 30) | 252 (36%) | 27 (11%) | 0.7 | |
Gender | Male | 264 (38%) | 28 (11%) | Â |
Female | 430 (62%) | 39 (9.1%) | 0.5 | |
Race | White | 376 (54%) | 30 (8.0%) | Â |
Black or African American | 187 (27%) | 22 (12%) | Â | |
American Indian or Alaska Native | 2 (0.3%) | 0 (0%) | Â | |
Asian or Pacific Islander | 9 (1.3%) | 0 (0%) | Â | |
Other | 17 (2.4%) | 0 (0%) | 0.3 | |
Not reported | 103 (15%) | 15 (15%) | Â | |
Ethnicity | Non-Hispanic | 558 (80%) | 50 (9.0%) | Â |
Hispanic | 34 (4.9%) | 3 (8.8%) | 1 | |
Not reported | 102 (15%) | 14 (14%) | Â | |
History of living on a farm | No | 539 (78%) | 43 (8.0%) | Â |
Yes | 151 (22%) | 24 (16%) | 0.004 | |
Not reported | 4 (1.9%) | 0 (0%) | Â | |
Drinking water supply | Private well | 115 (17%) | 8 (7.0%) | Â |
Public system | 573 (83%) | 59 (10%) | 0.3 | |
Not reported | 6 (0.9%) | 0 (0%) | Â | |
Self-reported cardiovascular disease | No | 578 (83%) | 55 (9.5%) | Â |
Yes | 8 (1.2%) | 0 (0%) | 0.4 | |
Not reported | 108 (16%) | 12 (11%) | Â | |
Self-reported diabetes | No | 634 (91%) | 59 (9.3%) | Â |
Yes | 57 (8.2%) | 7 (12%) | 0.5 | |
Not reported | 3 (0.4%) | 1 (33%) | Â | |
Smoking habits | Non-smoker | 531 (77%) | 42 (7.9%) | Â |
Current smoker | 159 (23%) | 25 (16%) | 0.003 | |
Not reported | 4 (0.6%) | 0 (0%) | Â |