TABLE 1.
Descriptive Characteristics and Unadjusted Bivariate Relationships between Model Covariates and NTDC-Related ED Visits for Children (n=17,223,414) and Adults (n=103,450,324) in the 2010 U.S. National Emergency Department Sample (NEDS)
| Children Ages 3 to 17 Years N=17,223,414 |
Adults Ages 18 Years and Older N=103,450,324 |
|||||
|---|---|---|---|---|---|---|
| Model Covariates | NTDC-related ED Visit (n=141,940) n (%) |
Other ED Visits (n=17,081,474) n (%) |
P-value | NTDC-related ED Visit (n=2,132,349) n (%) |
Other ED Visits (n=101,317,975) n (%) |
P-value |
| Autistic Spectrum Disorder (ASD) Status | P=0.470 | P<0.001 | ||||
| ASD | 606 (0.4) | 68,032 (0.4) | 370 (<0.1) | 37,520 (<0.1) | ||
| No ASD | 141,334 (99.6) | 17,013,442 (99.6) | 2,131,979 (99.9) | 101,280,455 (99.9) | ||
| Sex | P<0.001 | P<0.001 | ||||
| Male | 77,144 (54.3) | 8,876,474 (52.0) | 1,007,611 (47.3) | 43,057,725 (42.5) | ||
| Female | 64,792 (45.7) | 8,204,376 (48.0) | 1,124,648 (52.7) | 58,251,309 (57.5) | ||
| Age | P<0.001 | n/a | n/a | |||
| 3–5 | 33,135 (23.3) | 4,378,426 (25.6) | n/a | n/a | ||
| 6–12 | 56,275 (39.7) | 6,607,341 (38.7) | n/a | n/a | ||
| 13–17 | 52,530 (37.0) | 6,095,708 (35.7) | P<0.001 | |||
| 18–21 | n/a | n/a | 211,760 (9.9) | 8,715,180 (8.6) | ||
| 22–49 | n/a | n/a | 1,655,980 (77.7) | 50,521,526 (49.9) | ||
| 50–64 | n/a | n/a | 208,812 (9.8) | 20,072,898 (19.8) | ||
| 65–75 | n/a | n/a | 33,431 (1.6) | 9,692,189 (9.6) | ||
| 76 and older | n/a | n/a | 22,367 (1.1) | 12,316,182 (12.2) | ||
| Health Insurance Type | P<0.001 | P<0.001 | ||||
| Private including HMO | 43,649 (30.8) | 6,976,085 (41.0) | 351,556 (16.6) | 30,457,371 (30.2) | ||
| Medicare | 359 (0.3) | 46,797 (0.3) | 170,934 (8.1) | 26,688,671 (26.4) | ||
| Medicaid | 75,670 (53.5) | 7,940,470 (46.6) | 647,470 (30.5) | 18,751,665 (18.6) | ||
| Self-pay | 16,920 (12.0) | 1,380,281 (8.1) | 850,519 (40.1) | 19,207,497 (19.0) | ||
| No charge | 228 (0.2) | 20,777 (0.1) | 30,099 (1.4) | 812,620 (0.8) | ||
| Other | 4,705 (3.3) | 662,884 (3.9) | 70,118 (3.3) | 4,986,219 (4.9) | ||
| Median Community Income | P<0.001 | P<0.001 | ||||
| $1 – $40,999 | 51,848 (37.1) | 5,373,980 (32.0) | 841,766 (40.4) | 32,665,524 (33.0) | ||
| $41,000 – $50,999 | 41,506 (29.7) | 4,781,132 (28.5) | 653,157 (31.3) | 27,376,814 (27.7) | ||
| $51,000 – $66,999 | 28,366 (20.3) | 3,718,795 (22.1) | 390,055 (18.7) | 21,558,849 (21.8) | ||
| $67,000 or more | 17,847 (12.8) | 2,929,323 (17.4) | 200,927 (9.6) | 17,246,520 (17.4) | ||
| Rurality of Patient’s County of Residence | P<0.001 | P<0.001 | ||||
| Large central metropolitan | 37,909 (26.8) | 4,512,055 (26.5) | 462,465 (21.8) | 27,393,191 (27.2) | ||
| Large fringe metropolitan | 25,833 (18.3) | 3,613,476 (21.2) | 367,409 (17.3) | 20,754,119 (20.6) | ||
| Medium metropolitan | 31,667 (22.4) | 3,637,577 (21.4) | 514,706 (24.3) | 21,930,397 (21.8) | ||
| Small metropolitan | 15,915 (11.3) | 1,725,484 (10.1) | 268,320 (12.7) | 10,579,262 (10.5) | ||
| Micropolitan | 18,725 (13.2) | 2,126,593 (12.5) | 333,552 (15.7) | 12,255,633 (12.2) | ||
| Non-core | 11,439 (8.1) | 1,410,681 (8.3) | 173,745 (8.2) | 7,698,448 (7.7) | ||
*
Due to sampling, subgroup totals may not add up to the total number of NTDC-related and other ED visits.