Table 4.
Predictors of Costs Related to Influenza Complications and of Total Health Care Costs
| Influenza-Related Costs | Total Costs | |||
|---|---|---|---|---|
| Mean | Median | Mean | Median | |
| Gender | ||||
| Female | $303 | $69 | $409 | $107 |
| Male | $294 | $67 | $380 | $93 |
| Age | ||||
| 0–4 | $150 | $62 | $184 | $83 |
| 5–14 | $111 | $61 | $152 | $69 |
| 15–24 | $125 | $69 | $184 | $100 |
| 25–34 | $211 | $68 | $339 | $103 |
| 35–44 | $335 | $77 | $425 | $118 |
| 45–54 | $639 | $80 | $811 | $141 |
| 55–64 | $762 | $93 | $959 | $182 |
| 65+ | $944 | $109 | $1,408 | $246 |
| Prior/Concurrent Conditions | ||||
| Prior Vaccination | ||||
| Yes | $1,264 | $89 | $1,453 | $177 |
| No | $275 | $68 | $369 | $100 |
| Recently Preceding Complication or Comorbidity Diagnosis | ||||
| Yes | $776 | $87 | $944 | $126 |
| No | $167 | $66 | $245 | $93 |
| Concurrent Dispensing of Amantadine or Rimantadine | ||||
| Yes | $177 | $92 | $320 | $127 |
| No | $304 | $67 | $399 | $100 |
| Prior Influenza Episode | ||||
| Yes | $187 | $76 | $263 | $106 |
| No | $306 | $68 | $404 | $100 |
| Quintile of 3-Month Preceding Health Care Cost | ||||
| 1:$0 | $124 | $62 | $161 | $71 |
| 2: >$0–$86 | $104 | $62 | $140 | $75 |
| 3:$87–$199 | $132 | $62 | $178 | $86 |
| 4: $200–452 | $225 | $75 | $288 | $114 |
| 5:$453+ | $907 | $100 | $1,208 | $211 |
| Evidence of Medication Use and Prevalent Comorbid Conditions | ||||
| Chronic Corticosteroid Use | ||||
| Yes | $1,505 | $263 | $1,763 | $376 |
| No | $294 | $68 | $390 | $100 |
| Malignancy | ||||
| Yes | $5,180 | $165 | $5,904 | $400 |
| No | $245 | $68 | $335 | $100 |
| Chronic Heart Disease | ||||
| Yes | $2,866 | $162 | $3,295 | $334 |
| No | $248 | $67 | $338 | $99 |
| Chronic Lung Disease | ||||
| Yes | $510 | $86 | $637 | $128 |
| No | $248 | $66 | $337 | $94 |
| Diabetes | ||||
| Yes | $1,949 | $124 | $2,290 | $290 |
| No | $269 | $68 | $362 | $100 |