Table 4. The adjusted* association between the self-reported outcome variables and non-odor related explanatory variables in communities near AFOs.
| Study | Outcome variable | Community health/animal exposure measure | Subcategory | Effect measure | Point estimate | 95% CI point estimate |
| [42] | Asthmatic pathology in children with non-atopic parents | Log of endotoxin for each additional | NA | OR | 0.95 | 0.88–1.05 |
| [42] | Asthmatic pathology in children with atopic parents | Log of endotoxin for each additional item | NA | OR | 1.15 | 1.03–1.29 |
| [68] | Self-reported occurrence of wheeze at any time in the past 12 months | Miles to nearest CAFO for children with self-reported allergies | >3 | OR | 1.00 | |
| ≤3 | OR | 1.05 | 1.00–1.10 | |||
| 2 to ≤3 | OR | 1.12 | 1.04–1.19 | |||
| ≤2 | OR | 1.01 | 0.95–1.07 | |||
| [68] | Self-reported occurrence of wheeze at any time in the past 12 months | Miles to nearest CAFO for children with no self-reported allergies | >3 | OR | 1.00 | |
| ≤3 | OR | 1.02 | 0.94–1.11 | |||
| 2 to ≤3 | OR | 1.08 | 0.95–1.21 | |||
| ≤2 | OR | 0.99 | 0.89–1.09 | |||
| [68] | Self-reported occurrence of wheeze at any time in the past 12 months | Hog pounds (in millions within 3 miles of school) for children with self-reported allergies | <2.0 | OR | 1.07 | 1.01–1.12 |
| 2.0 to <5.0 | OR | 1.04 | 0.93–1.14 | |||
| ≥5.0 | OR | 1.00 | 0.89–1.11 | |||
| [68] | Self-reported occurrence of wheeze at any time in the past 12 months | Hog pounds (in millions within 3 miles of school) for children with no self-reported allergies | <2.0 | OR | 1.03 | 0.93–1.12 |
| 2.0 to <5.0 | OR | 0.99 | 0.81–1.16 | |||
| ≥5.0 | OR | 1.04 | 0.85–1.23 | |||
| [68] | Self-reported occurrence of wheeze at any time in the past 12 months | Exposure category for children with self-reported allergies | None | OR | 1.00 | |
| Low | OR | 1.10 | 1.03–1.18 | |||
| Medium | OR | 1.04 | 0.97–1.12 | |||
| High | OR | 1.01 | 0.89–1.11 | |||
| [68] | Self-reported occurrence of wheeze at any time in the past 12 months | Exposure category for children with no self-reported allergies | None | OR | 1.00 | |
| Low | OR | 1.09 | 0.95–1.23 | |||
| Medium | OR | 1.01 | 0.89–1.13 | |||
| High | OR | 0.97 | 0.84–1.23 | |||
| [62] | Self-reported outcomes: wheeze without a cold in the last 12 months | Number of animal houses with 500 m of the home | ≤5 | OR | 1.00 | |
| ≤10 | OR | 1.00 | 0.70–1.42 | |||
| ≤12 | OR | 1.62 | 0.74–3.53 | |||
| >12 | OR | 2.45 | 1.22–4.90 | |||
| [62] | Self-reported outcomes: physician diagnosis of asthma (ever?) | Number of animal houses with 500 m of the home | ≤5 | OR | 1.00 | |
| ≤10 | OR | 0.69 | 0.42–1.11 | |||
| ≤12 | OR | 1.23 | 0.43–3.54 | |||
| >12 | OR | 1.18 | 0.45–3.10 | |||
| [62] | Self-reported outcomes: symptoms of allergic rhinitis | Number of animal houses with 500 m of the home | ≤5 | OR | 1.00 | |
| ≤10 | OR | 0.91 | 0.66–1.24 | |||
| ≤12 | OR | 1.20 | 0.56–2.57 | |||
| >12 | OR | 1.29 | 0.64–2.60 | |||
| [65] | Headache | OR | 4.1 | p = 0.001 | ||
| Sore throat | p = 0.27 | |||||
| Itchy throat | p = 0.12 | |||||
| Eyes irritated | OR | 6.1 | p = 0.004 | |||
| Eyes tearing | Model didn't converge | |||||
| Nasal congestion | p = 0.76 | |||||
| Nasal secretion | p = 0.22 | |||||
| Nasal irritation | p = 0.34 | |||||
| Difficulty breathing | Model didn't converge | |||||
| Cough | p = 0.66 | |||||
| Nausea | OR | 7.8 | p = 0.014 |
*
[42] Adjusted for gender, oldest sibling, experienced street noise (clearly vs. very little), actual smoking (yes vs. no), education level, breastfed at least 4 months (yes vs. no), mold (yes vs. no), contact with cats at a young age (yes vs. no), rug/Carpeted floor (yes vs. no), parental atopy.
[68] Adjusted for individual-level characteristics (gender, age, race, Hispanic ethnicity, economic status, smoking status, exposure to second-hand smoke at home, and use of a gas stove more than once per month) and school-level characteristics (rural locale, indoor air quality, and reports of other non-livestock industries nearby).
[62] Adjusted for age (5 categories), sex, active and passive smoke exposure, level of education, number of siblings, parental allergies.
[69] Adjusted for fixed effects for odor, time of day, and day, and random effects for cluster, person within cluster, odor, and time of day.
[65] Two-way analysis of variance.