Table 3 HC and CHR lifetime and last 3 months substance use and abuse at baseline.

From: PSYSCAN multi-centre study: baseline characteristics and clinical outcomes of the clinical high risk for psychosis sample

 

HC, N (%)

CHR, N (%)

p-value1

Use - Lifetime

 Tobacco, n (%)

86 (64.2)

134 (58.0)

0.294

 Alcohol, n (%)

120 (90.2)

197 (85.3)

0.233

 Cannabis, n (%)

77 (57.5)

129 (55.8)

0.787

 Other, n (%)

47 (35.3)

97 (42.0)

0.255

Use - Last 3 months

 Tobacco, n (%)

45 (37.8)

102 (49.5)

0.054

 Alcohol, n (%)

116 (89.9)

165 (73.7)

<0.001

 Cannabis, n (%)

32 (27.4)

75 (36.2)

0.131

 Other, n (%)

36 (35.3)

83 (44.1)

0.181

Moderate risk abuse

 Tobacco, n (%)

47 (35.1%)

109 (46.0%)

0.041

 Alcohol, n (%)

36 (28.8%)

77 (36.7%)

0.140

 Cannabis, n (%)

68 (66.7%)

123 (64.1%)

0.700

  1. CHR clinical high risk for psychosis; HC healthy controls. 1Pearson’s Chi-squared test.
  2. Statistically significant comparisons are shown in bold.
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