| Patients Aged 6-11 Years | Patients Aged 12-17 Years | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
 | Patients With a Secondary ADHD Diagnosis | Patients Without an ADHD Diagnosis |  | Patients With a Secondary ADHD Diagnosis | Patients Without an ADHD Diagnosis |  | ||||
 | N | % | N | % | P Value | N | % | N | % | P Value |
Total sample | 74,438 | Â | 785,229 | Â | Â | 124,407 | Â | 1,047,445 | Â | Â |
Age | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Mean (SE) | 8.74 | 0.05 | 8.28 | 0.02 | <.001 | 14.26 | 0.04 | 14.72 | 0.02 | <.001 |
Gender | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Male | 58,883 | 79.10 | 451,525 | 57.50 | <.001 | 80,972 | 65.09 | 459,199 | 43.84 | <.001 |
Female | 15,426 | 20.72 | 315,639 | 40.20 | <.001 | 43,354 | 34.85 | 580,543 | 55.42 | <.001 |
Missing | 129 | 0.17 | 18,066 | 2.30 | <.001 | 81 | 0.06 | 7,703 | 0.74 | <.001 |
Race | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
White | 34,246 | 46.01 | 275,189 | 35.05 | <.001 | 62,186 | 49.99 | 470,434 | 44.91 | <.001 |
Black | 11,515 | 15.47 | 133,941 | 17.06 | .762 | 12,088 | 9.72 | 110,499 | 10.55 | <.001 |
Hispanic | 5,262 | 7.07 | 130,379 | 16.60 | <.001 | 6,124 | 4.92 | 120,415 | 11.50 | <.001 |
Asian or Pacific Islander | 211 | 0.28 | 11,179 | 1.42 | <.001 | 333 | 0.27 | 10,477 | 1.00 | <.001 |
Native American | 166 | 0.22 | 3,205 | 0.41 | .030 | 190 | 0.15 | 3,909 | 0.37 | <.001 |
Other | 2,445 | 3.29 | 27,444 | 3.50 | .280 | 3,264 | 2.62 | 29,546 | 2.82 | .137 |
Missing | 20,593 | 27.66 | 203,892 | 25.97 | .408 | 40,223 | 32.33 | 302,164 | 28.85 | .014 |
Primary expected payer | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Medicare | 68 | 0.09 | 1,108 | 0.14 | .005 | 217 | 0.17 | 1,785 | 0.17 | .004 |
Medicaid | 43,379 | 58.28 | 317,705 | 40.46 | <.001 | 52,562 | 42.25 | 352,247 | 33.63 | .582 |
Private Insurance | 26,091 | 35.05 | 399,329 | 50.86 | <.001 | 62,702 | 50.40 | 591,369 | 56.46 | .003 |
Self-pay | 1,377 | 1.85 | 36,973 | 4.71 | <.001 | 2,718 | 2.19 | 49,774 | 4.75 | <.001 |
No charge | 90 | 0.12 | 1,787 | 0.23 | .029 | 150 | 0.12 | 2,523 | 0.24 | .001 |
Other | 3,250 | 4.37 | 26,700 | 3.40 | .202 | 5,597 | 4.50 | 47,095 | 4.50 | .006 |
Missing | 184 | 0.25 | 1,627 | 0.21 | .556 | 459 | 0.37 | 2,652 | 0.25 | .234 |
Admission source | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Emergency room | 28,408 | 38.16 | 465,108 | 59.23 | <.001 | 52,763 | 42.41 | 570,497 | 54.47 | .006 |
Another hospital | 3,533 | 4.75 | 32,481 | 4.14 | .004 | 8,057 | 6.48 | 61,063 | 5.83 | <.001 |
Another facility | 1,658 | 2.23 | 7,966 | 1.01 | .002 | 3,164 | 2.54 | 19,516 | 1.86 | <.001 |
Other | 39,427 | 52.97 | 268,892 | 34.24 | <.001 | 58,447 | 46.98 | 379,490 | 36.23 | <.001 |
Missing | 1,411 | 1.90 | 10,783 | 1.37 | .213 | 1,975 | 1.59 | 16,879 | 1.61 | .935 |
Admission type | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Emergency | 32,191 | 43.25 | 409,196 | 52.11 | .803 | 58,861 | 47.31 | 547,153 | 52.24 | <.001 |
Urgent | 24,817 | 33.34 | 171,006 | 21.78 | <.001 | 40,116 | 32.25 | 266,490 | 25.44 | .001 |
Elective | 15,205 | 20.43 | 102,489 | 13.05 | .519 | 20,149 | 16.20 | 129,372 | 12.35 | <.001 |
Newborn | 176 | 0.24 | 938 | 0.12 | .212 | 355 | 0.29 | 1,581 | 0.15 | .170 |
Other | 5 | 0.01 | 5 | 0.00 | .120 | 283 | 0.23 | 2,342 | 0.22 | .480 |
Missing | 2,044 | 2.75 | 101,595 | 12.94 | <.001 | 4,642 | 3.73 | 100,507 | 9.60 | <.001 |
Discharge disposition | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Routine | 70,073 | 94.14 | 757,615 | 96.48 | .001 | 112,805 | 90.67 | 966,177 | 92.24 | <.001 |
Short-term hospital | 625 | 0.84 | 9,712 | 1.24 | .004 | 1,557 | 1.25 | 12,663 | 1.21 | .625 |
Skilled-nursing facility | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
Intermediate care facility | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
Another facility | 2,685 | 3.61 | 6,177 | 0.79 | <.001 | 8,287 | 6.66 | 48,417 | 4.62 | <.001 |
Home health care | 303 | 0.41 | 9,458 | 1.20 | <.001 | 531 | 0.43 | 9,232 | 0.88 | <.001 |
Other | 500 | 0.67 | 1,434 | 0.18 | <.001 | 817 | 0.66 | 8,025 | 0.77 | .001 |
Died | 9 | 0.01 | 474 | 0.06 | <.001 | 10 | 0.01 | 333 | 0.03 | <.001 |
Missing | 243 | 0.33 | 360 | 0.05 | .017 | 399 | 0.32 | 2,597 | 0.25 | .021 |
Geographic region | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Northeast | 14,964 | 20.10 | 173,830 | 22.14 | .504 | 25,529 | 20.52 | 233,768 | 22.32 | .232 |
Midwest | 23,426 | 31.47 | 163,678 | 20.84 | <.001 | 45,597 | 36.65 | 291,401 | 27.82 | <.001 |
South | 30,752 | 41.31 | 292,322 | 37.23 | .099 | 43,141 | 34.68 | 352,187 | 33.62 | .068 |
West | 5,296 | 7.11 | 155,398 | 19.79 | <.001 | 10,139 | 8.15 | 170,089 | 16.24 | <.001 |
Location | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Rural | 4,755 | 6.39 | 103,181 | 13.14 | .001 | 9,136 | 7.34 | 109,287 | 10.43 | .001 |
Urban | 69,659 | 93.58 | 681,728 | 86.82 | .001 | 115,262 | 92.65 | 937,891 | 89.54 | .001 |
Missing | 24 | 0.03 | 320 | 0.04 | .590 | 9 | 0.01 | 267 | 0.03 | <.001 |
Hospital status | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Non-teaching | 28,644 | 38.48 | 341,740 | 43.52 | .835 | 56,389 | 45.33 | 497,552 | 47.50 | .350 |
Teaching | 45,770 | 61.49 | 443,170 | 56.44 | .832 | 68,009 | 54.67 | 549,626 | 52.47 | .341 |
Missing | 24 | 0.03 | 320 | 0.04 | .590 | 9 | 0.01 | 267 | 0.03 | <.001 |
Hospital bed size | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Small | 7,762 | 10.43 | 115,576 | 14.72 | .017 | 12,186 | 9.80 | 112,938 | 10.78 | .182 |
Medium | 19,594 | 26.32 | 220,380 | 28.07 | .307 | 28,910 | 23.24 | 273,046 | 26.07 | .010 |
Large | 47,058 | 63.22 | 448,953 | 57.17 | .017 | 83,302 | 66.96 | 661,195 | 63.12 | .024 |
Missing | 24 | 0.03 | 320 | 0.04 | .590 | 9 | 0.01 | 267 | 0.03 | <.001 |
Year discharged | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
2000 | 9,041 | 12.15 | 109,581 | 13.96 | .016 | 13,682 | 11.00 | 149,628 | 14.29 | <.001 |
2001 | 11,574 | 15.55 | 107,463 | 13.69 | .909 | 17,029 | 13.69 | 160,922 | 15.36 | .278 |
2002 | 9,100 | 12.22 | 107,554 | 13.70 | .206 | 14,294 | 11.49 | 137,383 | 13.12 | .041 |
2003 | 11,281 | 15.16 | 117,210 | 14.93 | .798 | 22,485 | 18.07 | 163,676 | 15.63 | .065 |
2004 | 11,770 | 15.81 | 109,515 | 13.95 | .059 | 19,330 | 15.54 | 152,801 | 14.59 | .095 |
2005 | 11,917 | 16.01 | 127,419 | 16.23 | .512 | 19,700 | 15.83 | 149,631 | 14.29 | .103 |
2006 | 9,755 | 13.10 | 106,487 | 13.56 | .402 | 17,887 | 14.38 | 133,405 | 12.74 | .022 |