Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cost-effectiveness acceptability curves for number of drug-free specimens provided during treatment (a), and longest duration abstinent (LDA) during treatment (b). For a given threshold value, the probability that CBT4CBT is cost effective is equivalent to the proportion of the 2,000 bootstrapped replicates for which CBT4CBT had the highest net benefit (Fenwick et al., 2001).
