Perfluorooctanoic Acid (PFOA) Exposures and Incident Cancers among Adults Living Near a Chemical Plant

http://dx.doi.org/10.1289/ehp.1306615



Table 1. Demographic characteristics of cohort (n = 32,254) by community and occupational groups [n (%) or mean ± SD].
Characteristic Entire cohort
(n = 32,254)
Community group
(n = 28,541)
Occupational group
(n = 3,713)
GED, General Education Development test.
aRace/ethnicity information was missing for 295 participants (all from the occupational group). bEducation information was missing for 4 participants (2 from the community group and 2 from the occupational group).
Sex      
Male 14,894 (46.2) 11,939 (41.8) 2,955 (79.6)
Female 17,360 (53.8) 16,602 (58.2) 758 (20.4)
Race/ethnicitya      
White, non-Hispanic 31,144 (97.4) 27,860 (97.6) 3,284 (96.1)
Other 815 (2.6) 681 (2.4) 134 (3.9)
Educationb      
Less than high school 3,063 (9.5) 3,026 (10.6) 37 (1.0)
High school or certificate of equivalency (GED) 12,971 (40.2) 11,706 (41.0) 1,265 (34.1)
Some college 10,522 (32.6) 9,441 (33.1) 1,081 (29.1)
Bachelor or higher 5,694 (17.7) 4,366 (15.3) 1,328 (35.8)
Mean age at final interview (years) 53.0 ± 15.6 52.2 ± 15.6 59.3 ± 14.1
Mean year of birth 1957 ± 15.6 1958 ± 15.6 1951 ± 14.1
Type of participant      
Community only 28,541 (88.5) 28,541 (100.0)
Worker only 1,823 (5.7) 1,823 (49.1)
Community and worker 1,890 (5.9) 1,890 (50.9)