Table 2.
Number of patients and cost of drugs during the period 2010–2013 for patients with ankylosing spondylitis
| Year | Number of patients/month (mean) | Number of dispensations/month (mean) | Frequency of dispensation of TNF blockers (%) | Total cost (US$) | Mean monthly cost (US$) | Mean cost per dispensation (US$) |
|---|---|---|---|---|---|---|
| 2010a | 16 | 74 | 46.7 | 283,320 | 28,332 | 384 |
| 2011 | 50 | 322 | 76.8 | 3,727,350 | 310,612 | 966 |
| 2012 | 79 | 594 | 84.3 | 7,147,403 | 595,617 | 1003 |
| 2013b | 120 | 841 | 88.0 | 7,520,134 | 835,571 | 994 |
aBetween March and December of 2010
bBetween January and September of 2013