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Table 1 Demographic characteristics of AOM patients

From: Trends in healthcare utilization and costs associated with acute otitis media in the United States during 2008–2014

Variable 2008 2009 2010 2011 2012 2013 2014 Mean (range)
AOM patients, n 1,862,125 2,332,888 2,519,193 3,014,969 2,996,079 2,403,475 2,512,720 2,520,207 (1,862,125–3,014,969)
Age (y)
 Mean (SD) 18.7 (20.7) 19.1 (20.9) 19.7 (21.3) 19.9 (21.3) 20.2 (21.3]) 21.3 (22.0) 22.0 (21.9) 20.1 (18.7–22.0)
 Median 8 9 9 9 10 11 12 10 (8–12)
Age range, n (%)
  <  1 y 166,785 (9.0) 193,895 (8.3) 203,662 (8.1) 225,800 (7.5) 225,670 (7.5) 172,411 (7.2) 175,355 (7.0) 7.8 (7.0–9.0)
 1 y 174,212 (9.4) 209,180 (9.0) 223,144 (8.9) 254,902 (8.5) 250,197 (8.4) 195,332 (8.1) 198,919 (7.9) 8.6 (7.9–9.4)
 2–4 y 342,888 (18.4) 420,827 (18.0) 450,393 (17.9) 533,726 (17.7) 516,963 (17.3) 401,101 (16.7) 397,208 (15.8) 17.4 (15.8–18.4)
5–17 y 508,926 (27.3) 652,434 (28.0) 692,930 (27.5) 848,642 (28.1) 824,756 (27.5) 639,879 (26.6) 649,593 (25.9) 27.3 (25.9–28.1)
 18–49 y 436,012 (23.4) 556,016 (23.8) 603,437 (24.0) 730,878 (24.2) 753,916 (25.2) 613,892 (25.5) 682,419 (27.2) 24.8 (23.4–27.2)
 50–64 y 192,979 (10.4) 243,496 (10.4) 275,264 (10.9) 330,137 (10.9) 339,436 (11.3) 291,402 (12.1) 326,341 (13.0) 11.3 (10.4–13.0)
 65–74 y 22,369 (1.2) 33,277 (1.4) 41,710 (1.7) 54,066 (1.8) 51,672 (1.7) 56,053 (2.3) 52,674 (2.1) 1.7 (1.2–2.3)
 75–84 y 13,951 (0.7) 18,220 (0.8) 21,829 (0.9) 27,581 (0.9) 24,824 (0.8) 24,976 (1.0) 22,466 (0.9) 0.9 (0.7–1.0)
  ≥ 85 y 4003 (0.2) 5543 (0.2) 6824 (0.3) 9237 (0.3) 8645 (0.3) 8429 (0.4) 7745 (0.3) 0.3 (0.2–0.4)
 Male, n (%) 871,434 (46.8) 1,090,070 (46.7) 1,175,316 (46.7) 1,406,050 (46.6) 1,392,011 (46.5) 1,104,083 (45.9) 1,141,612 (45.4) 46.4 (45.4–46.8)
Insurance, n (%)
 Commercial a 1,820,948 (97.8) 2,274,874 (97.5) 2,447,618 (97.2) 2,922,112 (96.9) 2,909,203 (97.1) 2,312,057 (96.2) 2,428,161 (96.6) 97.0 (96.2–97.8)
 Medicare b 41,177 (2.2) 58,014 (2.5) 71,575 (2.8) 92,857 (3.1) 86,876 (2.9) 91,418 (3.8) 84,559 (3.4) 3.0 (2.2–3.8)
US geographic region, n (%)
 Northeast 169,659 (9.1) 285,197 (12.2) 368,765 (14.6) 565,050 (18.7) 540,654 (18.0) 438,273 (18.2) 515,136 (20.5) 15.9 (9.1–20.5)
 North Central 481,564 (25.9) 632,555 (27.1) 648,970 (25.8) 784,658 (26.0) 746,438 (24.9) 539,270 (22.4) 546,186 (21.7) 24.8 (21.7–27.1)
 South 945,338 (50.8) 1,105,089 (47.4) 1,054,087 (41.8) 1,099,741 (36.5) 1,144,577 (38.2) 880,547 (36.6) 974,374 (38.8) 41.4 (36.5–50.8)
 West 256,447 (13.8) 306,441 (13.1) 416,690 (16.5) 471,455 (15.6) 493,978 (16.5) 473,180 (19.7) 408,917 (16.3) 15.9 (13.1–19.7)
 Unknown 9117 (0.5) 3606 (0.2) 30,681 (1.2) 94,065 (3.1) 70,432 (2.4) 72,205 (3.0) 68,107 (2.7) 1.9 (0.2–3.1)
  1. Abbreviations: SD standard deviation
  2. aIncludes active employees and their dependents, early (non-Medicare) retirees and their dependents, and individuals covered under the Consolidated Omnibus Budget Reconciliation Act
  3. bIncludes retirees (> 65 y), their dependents, and younger people with disabilities