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Table 4 Correlations between anxiety disorders and different substances used by patients with substance use disorder

From: Prevalence of anxiety disorders and its co-occurrence with substance use disorder: a clinical study

   Crystal Cannabis Opium Heroin Methadone Tramadol Alcohol LSD Benzodiazepine Tobacco
PDa p value 0.900 0.047 0.667 0.081 0.563 0.000 0.058 0.001 0.744 0.875
r 0.007 0.116 0.025 0.102 0.034 0.205 0.111 0.197 0.019 0.009
Agoraphobia p value 0.658 0.425 0.682 0.207 0.771 0.503 0.550 0.320 0.580 0.913
r 0.026 − 0.047 0.024 0.074 0.017 0.039 − 0.035 0.058 0.033 0.007
SADb p value 0.184 0.035 0.001 0.380 0.010 0.000 0.023 0.036 0.004 0.398
r 0.078 0.124 0.186 0.052 0.152 0.258 0.133 0.123 0.168 − 0.051
GADc p value 0.516 0.423 0.072 0.229 0.954 0.057 0.810 0.213 0.710 0.786
r 0.038 − 0.047 − 0.106 0.071 − 0.003 0.112 0.014 0.073 0.022 0.016
  1. aPanic disorder
  2. bSocial anxiety disorder
  3. cGeneralized anxiety disorder