Table 3: Number of flares and cost per flare.

Mild flareModerate flareSevere flare

Number of flares per patient per year (mean, SD) 0.91.01.61.20.10.3
Number of patients with at least 1 flare during the entire followup (N, %)10,69675%13,00291%3,54025%
 Number of months of followup (mean, SD)40.520.539.820.543.021.9
 Number of flares per patient (mean, SD)2.83.05.24.50.40.9
 Number of patients with only 1 flare (N, %)2,66325%1,60812%2,66675%
 Number of patients with only 2 flares (N, %)2,11020%1,69813%46413%
 Number of patients with 3+ flares (N, %)5,92355%9,69675%41012%

Cost per flare Mean (SD)MedianMean (SD)MedianMean (SD)Median

Medical cost $45 ($416)$0$477 ($2,221)$69$11,621 ($29,148)$2,138
Pharmacy cost $84 ($562)$25$84 ($506)$5$94 ($488)$8
Total cost $129 ($702)$36$562 (2,275)$123$11,716 ($29,141)$2,294