Table 3. Median cost per acute respiratory illness episode adjusted for distance from residence to the study site in children enrolled in a pediatric respiratory infection cohort in Thailand.
| Adjusted median cost per episode (interquartile range)γ | Difference in adjusted medians* (95% confidence interval) | ||||||
|---|---|---|---|---|---|---|---|
| Number | Healthy | Number | High-risk | Number | All | ||
| ARI episode | 1828 | 20 (18–24) | 1280 | 23 (22–25) | 3108 | 20 (18–23) | 1 (-0.5 to 3) |
| Non-influenza associated ARI | 1712 | 20 (18–24) | 1232 | 23 (21–25) | 2944 | 21 (19–24) | 2 (-0.4 to 3) |
| Influenza associated ARI | 116 | 23 (20–27) | 48 | 23 (22–25) | 164 | 25 (23–28) | 4 (-5 to 14) |
| Mild influenza-associated ARI | 107 | 22 (19–25) | 39 | 25 (23–26) | 146 | 22 (21–24) | -1 (-9 to 6) |
| Severe influenza-associated ARI | 9 | 232 (211–243) | 9 | 318 (159–607) | 18 | 246 (235–258) | 110 (-352 to 571) |
γMedian costs were adjusted for distance from residence to the study site and reported in US dollar.
*Differences in the adjusted median costs between the two groups were compared by quantile regression.
ARI: acute respiratory illness