TABLE 5

Estimated Reductions in the Number and Cost of Diarrhea-Associated Health Care Utilization Among Children <5 Years of Age, After the Introduction of Rotavirus Vaccine in the United States, 2007–2011a

YearNo. of HospitalizationsReductionNo. of ED VisitsReductionNo. of Outpatient VisitsReduction
No. of events
2001–2006110 688ref394 619ref2 871 726ref
2007–200873 77836 890360 21834 4012 775 19696 530
2008–200982 70327 965401 237NAb2 896 199NAb
2009–201051 41059 258272 768121 8512 296 955574 771
2010–201158 19552 473308 53686 0832 426 159445 568
Total 2007–2011NA176 587NA242 335NA1 116 869
Cost ($) 2001–2006 (annual average)473 770 195ref137 327 317ref212 507 733 2007–2008315 842 541157 927 653125 355 74311 971 574205 364 5107 143 223 2008–2009354 051 300119 718 894139 630 312NAb214 318 757NAb 2009–2010220 086 757253 683 43894 923 14442 404 173169 974 66342 533 070 2010–2011249 132 453224 637 742107 370 58629 956 731179 535 73832 971 995 Total 2007–2011NA755 967 727NA84 332 478NA82 648 288 • ED, emergency department; NA, not applicable; ref, reference group. • a Numbers of hospital care utilization visits were derived by applying average rates of hospitalizations, emergency department visits, and outpatient visits for July 2001–June 2006, July 2007–June 2008, July 2008–June 2009, July 2009–June 2010, and July 2010–June 2011 to the 2009 US Census population estimate for children under 5 y of age. The 2009 estimates were selected as are the midpoints between years 2007–2011. Treatment costs were calculated by multiplying the numbers of health care utilization visits by the inflation-adjusted median payment per visit during the July 2008–June 2009 period ($4281, $348, and$74 for hospitalizations, ED visits, and outpatient visits, respectively).

• b During 2008–2009 season there was an increase of 6618 emergency department visits and 24 473 outpatient visits with an estimated cost of $2 302 995 and$1 811 025, respectively. These increases were not included in the calculated totals.