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Table 4 Number of HR and HV individuals that endorsed using each substance for current and past mono-drug and poly-drug use

From: Substance use in people at clinical high-risk for psychosis

  Current Past
  Mono-drug Users Poly-drug Users Mono-drug Users Poly-drug Users
  HR (n=19) HV (n=35) p-value* HR (n=10) HV (n=18) p-value* HR (n=12) HV (n=24) p-value* HR (n=23) HV (n=17) p-value*
Alcohol 18 13 0.404 10 18 0.130 8 21 0.010 22 17 0.436
Cannabinoids 1 0 1 8 16 0.109 2 2 1 22 16 0.327
Dissociatives 0 0 1 1 0 1 0 0 1 6 2 0.272
Hallucinogens 0 0 1 3 4 1 1 1 1 6 4 0.743
Opiates 0 0 1 1 0 1 0 1 1 3 3 1
Sedatives 0 0 1 1 0 1 0 0 1 1 0 1
Stimulants 0 0 1 6 4 0.743 1 0 1 15 9 0.254
  1. P- values: * = Fisher’s exact.