TABLE 1.
Demographics of Children Living in Olmsted County, Minnesota
| 1999 (n = 31 390), n (%) | 2004 (n = 32 490), n (%) | 2009 (n = 32 942), n (%) | 2014 (n = 33 097), n (%) | |
|---|---|---|---|---|
| Age, y | ||||
| <1 | 1768 (5.6) | 2016 (6.2) | 2087 (6.3) | 1985 (6.0) |
| 1–4 | 6755 (21.5) | 7337 (22.6) | 8396 (25.5) | 7825 (23.6) |
| 5–9 | 8689 (27.7) | 8518 (26.2) | 8945 (27.2) | 9789 (29.6) |
| 10–17 | 14 178 (45.2) | 14 619 (45.0) | 13 514 (41.0) | 13 498 (40.8) |
| Sex | ||||
| Girls | 15 200 (48.4) | 15 814 (48.7) | 16 058 (48.7) | 16 105 (48.7) |
| Boys | 16 190 (51.6) | 16 676 (51.3) | 16 884 (51.3) | 16 992 (51.3) |
| Ethnicity | ||||
| Non-Hispanic white | 23 645 (75.3) | 24 131 (74.3) | 23 393 (71.0) | 22 137 (66.9) |
| Othera | 7745 (24.7) | 8359 (25.7) | 9549 (29.0) | 10 960 (33.1) |
| African American | 1373 (4.4) | 2392 (7.4) | 2876 (8.7) | 3380 (10.2) |
| Asian American | 1410 (4.5) | 1714 (5.3) | 2036 (6.2) | 2229 (6.7) |
| Hispanic | 1119 (3.6) | 1825 (5.6) | 2392 (7.3) | 2743 (8.3) |
| Other and/or unknown | 3843 (12.2) | 2428 (7.5) | 2245 (6.8) | 2608 (7.9) |
| SES (HOUSES)b,c,d | ||||
| First quartile | 5990 (24.7) | 6862 (24.7) | 6661 (24.4) | 6248 (24.5) |
| Second quartile | 6023 (24.8) | 6899 (24.9) | 6868 (25.2) | 6360 (24.9) |
| Third quartile | 6091 (25.1) | 6967 (25.1) | 6846 (25.1) | 6412 (25.1) |
| Fourth quartile | 6163 (25.4) | 7029 (25.3) | 6909 (25.3) | 6496 (25.5) |
| Unknown | 7123 | 4733 | 5658 | 7581 |
| No. CCCse | ||||
| 0 | 29 367 (93.6) | 29 905 (92.0) | 30 246 (91.8) | 29 896 (90.3) |
| 1 | 1761 (5.6) | 2183 (6.7) | 2219 (6.7) | 2552 (7.7) |
| 2 | 194 (0.6) | 293 (0.9) | 332 (1.0) | 449 (1.4) |
| 3 | 44 (0.1) | 72 (0.2) | 82 (0.2) | 113 (0.3) |
| 4 | 16 (0.1) | 24 (0.1) | 35 (0.1) | 52 (0.2) |
| 5 | 5 (0.0) | 8 (0.0) | 19 (0.1) | 17 (0.1) |
| 6 | 2 (0.0) | 3 (0.0) | 6 (0.0) | 9 (0.0) |
| 7 | 1 (0.0) | 2 (0.0) | 2 (0.0) | 6 (0.0) |
| 8 | 0 (0.0) | 0 (0.0) | 1 (0.0) | 2 (0.0) |
| 9 | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.0) |
| CCCse | 273 (0.9) | 354 (1.1) | 423 (1.3) | 574 (1.7) |
| Neurologic and/or neuromuscular | ||||
| Cardiovascular | 362 (1.2) | 446 (1.4) | 673 (2.0) | 862 (2.6) |
| Respiratory | 51 (0.2) | 135 (0.4) | 181 (0.5) | 227 (0.7) |
| Renal and/or urologic | 159 (0.5) | 184 (0.6) | 244 (0.7) | 261 (0.8) |
| Gastrointestinal | 88 (0.3) | 126 (0.4) | 142 (0.4) | 185 (0.6) |
| Hematologic and/or immunologic | 89 (0.3) | 147 (0.5) | 165 (0.5) | 258 (0.8) |
| Metabolic | 370 (1.2) | 369 (1.1) | 336 (1.0) | 494 (1.5) |
| Other congenital or genetic | 633 (2.0) | 918 (2.8) | 817 (2.5) | 888 (2.7) |
| Malignancy | 318 (1.0) | 397 (1.2) | 328 (1.0) | 350 (1.1) |
| Premature and/or neonatal | 46 (0.1) | 77 (0.2) | 113 (0.3) | 104 (0.3) |
| Technology dependence | 130 (0.4) | 175 (0.5) | 200 (0.6) | 219 (0.7) |
| Transplant | 8 (0.0) | 18 (0.1) | 20 (0.1) | 26 (0.1) |
Population living in Olmsted County, Minnesota on April 1, 1999, 2004, 2009, and 2014.
a
Self-reported ethnicity was categorized into 2 groups: non-Hispanic white and other (African American, Asian American, Hispanic, and other and/or unknown).
b
The first quartile is the lowest quartile, and the fourth quartile is the highest quartile.
c
Children with missing HOUSES data were excluded (7123 in 1999, 4733 in 2004, 5658 in 2009, and 7581 in 2014).
d
HOUSES data for the 2014 cohort were from 2012.
e
Pediatric CCCs classification system version 2.