Table 2.
Self-reported psychotic experiences are strongly associated with cannabis use frequency.
| Prevalence of self-reported psychotic experiences in the UK Biobank, stratified by self-reported cannabis use frequency | AOR per risk unit | |||||
|---|---|---|---|---|---|---|
| Never (0 risk units) | Ever (1 risk unit) | Monthly (2 risk units) | Weekly (3 risk units) | Daily (4 risk units) | ||
| Any psychotic experience | 4.1% |
7.0% AOR = 1.54 [1.43, 1.65] |
8.4% AOR = 1.69 [1.54, 1.87] |
8.8% AOR = 1.69 [1.51, 1.89] |
9.6% AOR = 1.79 [1.52, 2.20] |
AOR = 1.20 [1.16, 1.24] |
| Auditory hallucinations | 1.3% |
2.7% AOR = 1.57 [1.40, 1.77] |
3.4% AOR = 1.84 [1.57, 2.16] |
3.6% AOR = 1.85 [1.55, 2.21] |
3.6% AOR = 1.79 [1.38, 2.33] |
AOR = 1.21 [1.15, 1.27] |
| Visual hallucinations | 2.8% |
4.6% AOR = 1.58 [1.45, 1.73] |
5.4% AOR = 1.69 [1.50, 1.91] |
5.5% AOR = 1.66 [1.45, 1.91] |
6.1% AOR = 1.76 [1.44, 2.15] |
AOR = 1.21 [1.16, 1.26] |
| Persecutory delusions | 0.6% |
1.3% AOR = 1.59 [1.34, 1.89] |
1.8% AOR = 1.95 [1.56, 2.44] |
2.2% AOR = 2.14 [1.68, 2.74] |
2.6% AOR = 2.44 [1.75, 3.40] |
AOR = 1.24 [1.15, 1.33] |
| Delusions of reference | 0.6% |
0.9% AOR = 1.39 [1.15, 1.68] |
1.2% AOR = 1.57 [1.21, 2.03] |
1.3% AOR = 1.65 [1.24, 2.19] |
1.4% AOR = 1.67 [1.10, 2.53] |
AOR = 1.18 [1.08, 1.28] |
Square brackets denote 95% confidence intervals. It is noteworthy that AORs are adjusted for covariates, while percentages are not.
The bold values are purely for visual emphasis.