Pearson Correlation Coefficients between Perceived Social Support (PSS-Fri/Fam), Thoughts About Abstinence (TAA) and Percent Days Abstinent (PDA). C’ regression coefficients are also presented, representing the effect of PSS-Fri/Fam on PDA that is not mediated by TAA. Higher PSS-Fri/Fam scores indicate greater perceived social support. TAA was coded dichotomously where 0 = never planned to use again and 1 = all other responses. Higher PDA scores indicate more days abstinent in the reported time period. Figure 1a – 18.82% mediated, p = .13; Figure 1b – 13.77% mediated, p = .10; Figure 1c – 8.23% mediated, p = .11.