Human Impairment from Living near Confined Animal (Hog) Feeding Operations

Table 3

Pulmonary function tests in 25 near-exposed subjects compared to 22 distant exposed in Paulding, Ohio, and 58 unexposed Tennessee subjects (compared as means of percent predicted values, by analysis, of variance, ANOVA).

	A: 22 distant exposed; Mean ± sd	B: 25 near exposed; Mean ± sd	A versus B; 𝑃 values	C: 58 TN unexposed; Mean ± sd	B versus C; 𝑃 values	A versus C; 𝑃 values
FVC	97.0±12.8	87.6±10.7	.014*	101.6±15.2	.0001*	.180
FEV1	94.5±11.7	85.5±15.4	.028*	93.6±15.2	.025*	.070
FEF25-75	98.4±20.0	91.9±30.8	.223	88.1±35.0	.633	.070
FEF75-85	90.8±24.2	96.4±54.1	.080	78.1±52.7	.133	.191
FEV1/FVC	77.9±3.3	76.1±7.3	.301	72.8±9.5	.130	.014*

* Statistically significant values.