Table 10.
Nongenetic Risk Factors
| Trauma at t0 %, (n/N) | OR (95% CI) | Cannabis Use More Than 5 Times at T0, (n/N) | OR (95% CI) | Urbanicity T0 %, (n/N) | OR (95% CI) | |
| T2–T3 no psychotic symptoms, (n = 3982) | 18.3% (711/3982) | 1a | 12.0% (450/3764) | 1a | 69.8% (2716/3892) | 1a |
| T2–T3 isolated hallucinations, (n = 65) | 13.9% (9/65) | 0.8 (0.4, 1.6) | 17.8% (11/62) | 1.9 (1.0, 3.7) | 76.9% (50/65) | 1.4 (0.8, 2.6) |
| T2–T3 isolated delusions, (n = 656) | 23.8% (156/656) | 1.5 (1.2, 1.8)* | 17.9% (113/632) | 1.8 (1.4, 2.3)* | 72.7% (477/656) | 1.2 (1.0, 1.4) |
| T2–T3 hallucinations and delusions, (n = 121) | 34.7% (42/121) | 2.6 (1.7, 4.0)*b,c | 20.5% (24/117) | 2.3 (1.4, 3.8)** | 76.9% (93/121) | 1.5 (0.9, 2.2) |
a
Reference category.
b
OR T2–T3 hallucinations and delusions > OR T2–T3 isolated hallucinations, P < .01.
c
OR T2–T3 hallucinations and delusions > OR T2–T3 isolated delusions, P < .01.
*P ≤ .001; **P ≤ .01.