Table 2. Associations Between Lifetime PEs and Subsequent Onset of Suicidal Ideation, Plans, and Attempts, With and Without Adjustment for Antecedent Mental Disorders.
Characteristic | OR (95% CI) | |||||
---|---|---|---|---|---|---|
Ideation | Plans | Attempts | ||||
Basic Demographic Adjustmenta | Adjusted for Antecedent Mental Disordersb | Basic Demographic Adjustmenta | Adjusted for Antecedent Mental Disordersb | Basic Demographic Adjustmenta | Adjusted for Antecedent Mental Disordersb | |
PE status | ||||||
Any PE | 3.0 (2.6-3.6)c | 2.2 (1.8-2.6)c | 3.4 (2.8-4.1)c | 2.1 (1.7-2.6)c | 3.1 (2.4-3.9)c | 1.9 (1.5-2.5)c |
No. of PE types | ||||||
Exactly 1 PE type | 2.5 (2.0-3.1)c | 1.9 (1.5-2.3)c | 2.6 (2.0-3.3)c | 1.8 (1.4-2.3)c | 2.3 (1.7-3.2)c | 1.6 (1.1-2.2)c |
Exactly 2 PE types | 3.7 (2.7-4.9)c | 2.5 (1.8-3.3)c | 3.6 (2.5-5.2)c | 2.1 (1.5-3.1)c | 3.3 (2.2-5.0)c | 1.9 (1.2-3.0)c |
≥3 PE types | 7.1 (4.9-10.3)c | 4.1 (2.9-5.9)c | 11.1 (7.1-17.4)c | 5.2 (3.1-8.7)c | 10.3 (6.2-17.2)c | 4.0 (2.2-7.3)c |
Joint significance of the PE type measures | ||||||
χ23 | 256.2 | 112.9 | 203.1 | 63.7 | 137.5 | 30.5 |
P value | <.001 | <.001 | <.001 | <.001 | <.001 | <.001 |
Difference in the ORs of the PE type measures | ||||||
χ22 | 24.3 | 14.7 | 32.4 | 15.0 | 26.0 | 7.6 |
P value | <.001 | .001 | <.001 | .001 | <.001 | .02 |
Test for linear trend | ||||||
χ21 | 15.0 | 13.2 | 20.6 | 14.3 | 24.7 | 14.6 |
P value | <.001 | <.001 | <.001 | <.001 | <.001 | <.001 |
PE frequency metric | ||||||
>0.3 Episodes/y | 3.5 (2.8-4.3)c | 2.4 (2.0-3.0)c | 3.8 (2.9-5.1)c | 2.3 (1.7-3.0)c | 3.0 (2.3-4.1)c | 1.8 (1.3-2.5)c |
Abbreviations: OR, odds ratio; PE, psychotic experience; STB, suicidal thoughts and behaviors.
Psychotic experience (any PE, number of PE type, and frequency metric) was used as a predictor of STB outcomes in separate discrete-time survival models. These models control for age cohorts, sex, person-year dummies, and country.
These models additionally control for 21 other antecedent mental disorders.
Statistically significant at the P < .05 level (Wald χ2 based on discrete-time survival models) using 2-sided tests.