Table 1.
Characteristics of U.S. Vietnam Era Male Veterans by Agent Orange Exposure
| No Agent Orange Flag (N = 2,693,293) | Agent Orange Flag (N = 948,103) | |
|---|---|---|
| Idiopathic pulmonary fibrosis | 51,086 (1.9%) | 20,409 (2.2%) |
| Demographics | ||
| Median age (interquartile range) | 62.9 (59.5–66.9) | 62.7 (61.0–64.8) |
| Race (column %) | ||
| White | 1,922,947 (71%) | 762,049 (80%) |
| Black or African American | 333,894 (12%) | 85,772 (9%) |
| Asian/Native Hawaiian or Pacific Islander/American Indian | 49,599 (2%) | 17,707 (2%) |
| Unknown | 386,853 (14%) | 82,575 (9%) |
| Ethnicity (column %) | ||
| Hispanic or Latino | 101,550 (4%) | 36,761 (4%) |
| Not Hispanic or Latino | 2,226,246 (83%) | 836,539 (88%) |
| Unknown | 365,497 (14%) | 74,803 (8%) |
| Rurality | ||
| Rural | 989,166 (37%) | 371,684 (39%) |
| Unknown | 120,926 (4%) | 27,771 (3%) |
| Tobacco use | 1,656,838 (62%) | 588,190 (62%) |
| Military service | ||
| Army | 1,338,519 (50%) | 554,398 (58%) |
| Navy | 558,554 (21%) | 153,891 (16%) |
| Air Force | 487,227 (18%) | 105,045 (11%) |
| Marine | 265,104 (10%) | 131,193 (14%) |
| Coast Guard | 25,599 (1%) | 2,130 (0.2%) |
| Other | 18,290 (0.7%) | 1,446 (0.2%) |
Age calculated at the beginning of the study (January 1, 2010). P values were calculated with t test for continuous variables and chi-square test for categorical variables. All P values were less than 0.001.