Table 1.
Sample characteristics by distance from coke or steel production facility
| Distance to coke or steel production Facility | |||
|---|---|---|---|
| > 5 km N (col%) | > 2.5 km to 5 km N (col%) | ≤ 2.5 km N (col%) | |
| Birth Weight <2500 g | |||
| No | 351097 (90.7%) | 14252 (88.6%) | 8704 (87.9%) |
| Yes | 35854 (9.3%) | 1827 (11.4%) | 1203 (12.1%) |
| Gestation Period <37 weeks | |||
| No | 342348 (88.5%) | 13961 (86.8%) | 8533 (86.1%) |
| Yes | 44603 (11.5%) | 2118 (13.2%) | 1374 (13.9%) |
| Black | |||
| No | 275813 (71.3%) | 6539 (40.7%) | 3107 (31.4%) |
| Yes | 111138 (28.7%) | 9540 (59.3%) | 6800 (68.6%) |
| Hispanic | |||
| No | 370914 (95.9%) | 15698 (97.6%) | 9559 (96.5%) |
| Yes | 16037 (4.1%) | 381 (2.4%) | 348 (3.5%) |
| Payment Method | |||
| Medicaid | 172019 (44.5%) | 8123 (50.5%) | 6295 (63.5%) |
| Private insurance | 200862 (51.9%) | 7307 (45.4%) | 3144 (31.7%) |
| Self pay | 10621 (2.7%) | 588 (3.7%) | 417 (4.2%) |
| Other | 3449 (0.9%) | 61 (0.4%) | 51 (0.5%) |
| Age (years) | |||
| 18-35 | 341824 (88.3%) | 13987 (87.0%) | 8464 (85.4%) |
| <18 | 20078 (5.2%) | 1017 (6.3%) | 888 (9.0%) |
| >35 | 25049 (6.5%) | 1075 (6.7%) | 555 (5.6%) |
| Parity | |||
| 1 | 161950 (41.9%) | 6892 (42.9%) | 4125 (41.6%) |
| 2 | 132404 (34.2%) | 5172 (32.2%) | 3089 (31.2%) |
| 3 | 61666 (15.9%) | 2607 (16.2%) | 1596 (16.1%) |
| 4 or more | 30931 (8.0%) | 1408 (8.8%) | 1097 (11.1%) |
| Education (years) | |||
| < 12 | 82324 (21.3%) | 3355 (20.9%) | 2867 (28.9%) |
| 12 | 122443 (31.6%) | 5111 (31.8%) | 3588 (36.2%) |
| > 12 | 182184 (47.1%) | 7613 (47.3%) | 3452 (34.8%) |
| Birth Year | |||
| 1991-1995 | 77517 (20.1%) | 4784 (29.7%) | 3146 (31.9%) |
| 1996-2000 | 96643 (24.9%) | 4321 (26.9%) | 2619 (26.5%) |
| 2001-2005 | 101941 (26.4%) | 3449 (21.6%) | 2070 (20.9%) |
| 2006-2010 | 110850 (28.7%) | 3525 (22%) | 2072 (20.8%) |
| Total | 386951 | 16079 | 9907 |