Average total cost (£) of treatment by BTS treatment step and occurrence of attack with sample size, and estimated ratio of costs with 95% confidence interval
| BTS treatment step | Attack | No attack | Ratio of costs | 95% CI | |||||
|---|---|---|---|---|---|---|---|---|---|
| Cost | n | Cost | n | ||||||
| 0 | 139 | 53 | 11 | 900 | 12.6 | 5.9 to 24.3 | |||
| 1 | 191 | 283 | 37 | 1951 | 5.2 | 3.6 to 6.9 | |||
| 2 | 209 | 911 | 93 | 3708 | 2.25 | 1.98 to 2.57 | |||
| 3 | 319 | 684 | 152 | 2025 | 2.1 | 1.83 to 2.38 | |||
| 4 | 634 | 556 | 305 | 838 | 2.08 | 1.73 to 2.49 | |||
| 5 | 1133 | 166 | 310 | 128 | 3.65 | 2.65 to 4.95 | |||
| Overall | 381 | 2653 | 108 | 9550 | 3.53 | 3.20 to 3.87 | |||