Adjusted excess costs of asthma per person-year during the follow-up period
| Mean excess costs of asthma versus non-asthma (95% CI) CAD$ | ||||
| All-cause costs | Asthma-attributable costs | Costs attributable to major comorbidity categories# | Unattributable costs¶ | |
| Overall | 1058.2 (1006.1–1110.2) | 133.6 (131.6– 135.7) | 689.3 (648.6– 730.0) | 235.2 (219.7–250.8) |
| Cost components | ||||
| Hospitalisations | 259.7 (235.1–284.2) | 5.6 (5.0–6.3) | 217.5 (196.4–238.6) | 36.6 (28.1–45.0) |
| Outpatient visits | 353.5 (343.0–364.0) | 29.7 (29.5–30.0) | 188.9 (182.0–195.7) | 134.9 (130.6–139.2) |
| Medications | 445.0 (419.5–470.5) | 98.3 (96.5–100.1) | 282.9 (263.6–302.3) | 63.8 (54.7–72.8) |
| Age | ||||
| 5–18 years | 386.8 (340.9–432.8) | 108.1 (106.0–110.1) | 200.2 (163.9–236.4) | 78.6 (61.7–95.5) |
| 19–45 years | 1103.1 (1040.5–1165.6) | 121.3 (118.8–123.8) | 735.2 (686.3–784.0) | 246.6 (225.1–268.1) |
| >45 years | 1721.3 (1613.7–1828.9) | 184.2 (179.2–189.2) | 1148.8 (1063.2–1234.4) | 388.2 (357.5–419.0) |
#: the major comorbidity categories were defined by the International Classification of Diseases (ICD)-10 major disease categories and related symptoms. ¶: included general symptoms, signs and findings; injury; poisoning; burning and external causes; factors influencing health status; other special purposes; the American Hospital Formulary Service (AHFS) miscellaneous drug group; no ICD code; and no AHFS code.