Table 2.
Exposure information: internal analysis.
| Children and adults (n = 5,007)
|
Adults with complete interview information (n = 3,081)
|
|||
|---|---|---|---|---|
| Exposure Information | No. (%)a | Median years (range) | No. (%)a | Median years (range) |
| Open period, tier 1 or 2b | 70 (1.4) | 1.6 (0.1–12.0) | 67 (2.2) | 1.6 (0.1–12.0) |
| Open period, tier 3 or 4b | 851 (17.0) | 5.5 (0.1–12.0) | 801 (26.0) | 5.5 (0.1–12.0) |
| Closed period, tier 1 or 2 | 1,561 (31.2) | 7.0 (0.1–25.0) | 961 (31.2) | 7.0 (0.1–25.0) |
| Closed period, tier 3 or 4 | 3,434 (68.6) | 8.5 (0.1–27.0) | 2,091 (67.9) | 8.5 (0.1–27.0) |
| Attended 99th Street School | 1,268 (25.3) | 4.0 (1.0–9.0) | 563 (18.3) | 5.0 (1.0–9.0) |
| Total years of exposure | 5,007 (100.0) | 8.5 (0.1–39.0) | 3,081 (100.0) | 10.5 (0.2–39.0) |
| Exposed as a child | 795 (15.9) | — | 250 (8.1) | — |
| Residence on hot spot or swale | 125 (2.5) | — | 82 (2.7) | — |
a
Percentages for the first four exposure variables do not add up to 100.0 because the categories are not mutually exclusive.
b
All residents living in the EDA during the “open” period were old enough to be interviewed in 1978.