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Table 3 Incremental differences in annual healthcare utilization and costs between the RSV patients and the matched controls over the follow-up period

From: Healthcare resource use and economic burden attributable to respiratory syncytial virus in the United States: a claims database analysis

  1 year 2–4 years 5–17 years 18–49 years 50–64 years 65–74 years 75–84 years ≥85 years
Inpatient visit
  ≥ 1 visit, (%) 10.6 11 7.7 6.2 9.9 22.8 23.1 28.5
 No. of visits, mean 0.2 0.2 0.2 0.1 0.2 0.5 0.6 0.5
 Length of stay (days), mean 0.4 0.3 0.7 0.4 0.8 2.9 3.0 1.9
 Inpatient costs, mean $1345 $1637 $3855 $2384 $2913 $6453 $11,383 $2993
ED/UC
  ≥ 1 visit, (%) 20.4 19.9 15.2 17.9 19.2 22.8 22.1 26.6
 No. of visits, mean 0.2 0.3 0.2 0.2 0.2 0.4 0.5 0.4
 ED/UC costs, mean $491 $440 $467 $601 $826 $658 $720 $713
Ambulatory visit
  ≥ 1 visit, (%) 20.3 18.3 15.1 12.2 7.0 12.6 12.8 12.3
 No. of visits, mean 0.7 0.8 1.2 1.0 1.4 2.2 2.7 0.7
 Ambulatory costs, mean $713 $732 $1780 $1525 $2174 $1597 $1014 $3849
Outpatient visit
  ≥ 1 visit, (%) 3.6 4.8 13.4 16.4 8.4 5.5 5.9 6.8
 No. of visits, mean 5.0 4.7 6.2 5.5 7.9 12.1 18.1 18.6
 Outpatient costs, mean $839 $849 $1824 $1194 $1595 $4320 $11,785 $8398
Prescriptions filled
  ≥ 1 prescription, (%) 22.5 23.5 30.6 17.7 10.4 4.7 0.7 0.4
 No. of prescriptions, mean 3.1 3.4 4.3 4.3 7.5 10.0 9.5 14.6
 Prescription costs, mean $285 $515 $870 $1127 $1246 $2022 $1249 $800
Total unadjusted costs,a mean $3673 $4173 $8796 $6832 $8753 $15,050 $26,151 $16,752
  1. ED: emergency department, RSV: respiratory syncytial virus, UC: urgent care
  2. Costs adjusted to 2014 US dollars
  3. aTotal unadjusted costs are the sum of the costs from the individual resource categories