highly significantp<0.01
Abstinence was a highly significant predictor of improvement in these biological variables (all p<0.01).
Abstinence was a highly significant predictor of improvement in these biological variables (all p<0.01).
However, changes in total cholesterol and LDL cholesterol attained borderline significance between groups when compared by change in diet in the abstinence group (see online supplementary table 1 ; p=0.01 and p=0.02, respectively).