Air Pollution from Industrial Swine Operations and Blood Pressure of Neighboring Residents

http://dx.doi.org/10.1289/ehp.1205109



Table 1. Characteristics of participants [n (%) of nonmissing observations], Community Health Effects of Industrial Hog Operations study.
Variable Participants (N = 101) Records (N = 2,949)
aPercent of all observations. bHigher JHAC score indicates higher active coping with psychosocial stressors.
Age (years)    
≤ 53.7 51 (50.5) 1,410 (47.9)
> 53.7 50 (49.5) 1,539 (52.2)
Gender    
Women 66 (65.3) 1,945 (66.0)
Men 35 (34.7) 1,004 (34.0)
Odor threshold    
Missinga 4 (4.0) 91 (3.1)
Butanol ≤ 40ppm 55 (56.7) 1,559 (54.5)
Butanol > 40ppm 42 (43.3) 1,299 (45.5)
BP medication used    
No 59 (58.4) 1,680 (57.0)
Yes 42 (41.6) 1,269 (43.0)
JHAC scoreb    
Missinga 5 (5.0) 117 (4.0)
≤ 52 50 (52.1) 1,480 (52.3)
> 52 46 (47.9) 1,352 (47.7)