Fig. 3From: The effects of crocin on psychological parameters in patients under methadone maintenance treatment: a randomized clinical trialChange (means± SDs) in PSQI score and IIEF score in patients under MMT who were candidate for receiving crocin supplements and placebo. P value was obtained from independent t-test. N = 25 in each group. BDI, Beck Depression Inventory; BAI, Beck Anxiety Inventory; GHQ, general health questionnaire; IIEF, International Index of Erectile Functions; MMT, methadone maintenance treatment; PSQI, Pittsburgh Sleep Quality IndexBack to article page