Assumption (other variables held constant) | Marginal cost* of strategy B compared with strategy A | Marginal cost* of strategy C compared with strategy A | Marginal cost* of strategy B compared with strategy C |
---|---|---|---|
*In Welcan units. | |||
CL, confidence limit. | |||
GCA at upper 95% CL of frequency in cases with PALI | 21.84 | 7.01 | 38.06 |
GCA at observed frequency in cases with PALI | 83.5 | 21 | 208.5 |
GCA at lower 95% CL of frequency in cases with PALI | No extra cases detected | No extra cases detected | No extra cases detected |
Strategy B costs 4 Welcan units/case (rather than 4.5) | 55.67 | 21 | 125 |