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Table 3 Kendall's tau-b correlations of PGI-I with VSSS-MT scores and opinion of methadone as a medication

From: Patient and clinician's ratings of improvement in methadone-maintained patients: Differing perspectives?

 

PGI-I

VSSS-MT, overall

-0.032

VSSS-MT, Basic interventions

-0.001

VSSS-MT, Specific interventions

-0.063

VSSS-MT, Social worker skills

-0.106

VSSS-MT, Psychologist skills

0.088

Opinion of methadone as a medication

-0.178*

  1. VSSS-MT: Verona Service Satisfaction Scale for Methadone Treatment; PGI-I: Patient Global Impression of Improvement scale; *p < 0.05, two-tailed. The scores on the PGI-I scale are in descending order of improvement (1 = very much improved to 7 = very much worse) while both the VSSS-MT and the scores on the opinion on methadone as a medication are in increasing order of satisfaction (1 = terrible to 5 = excellent).