Cost-effectiveness acceptability curves without and with wastage considerations. . CEACs: Cost-effectiveness Acceptability Curves. Cost-effectiveness acceptability curves without wastage (A) and with wastage considerations (B): The blue, purple, green and orange lines represent the 1st, 2nd, 3rd and 4th sequence respectively. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)