Table 3. Risk of Developing Nonaffective Psychosis by Distance Moved Among Those Who Moved Once vs Never Having Moved in Each Age Period.
| Distance Moved | Adjusted HRa (95% CI) |
|---|---|
| Age 0-6, y | |
| No moves | 1 [Reference] |
| <5 km | 1.11 (1.01-1.22) |
| 5-29 km | 1.14 (1.03-1.26) |
| 30-99 km | 1.47 (1.25-1.74) |
| 100-499 km | 1.37 (1.04-1.50) |
| >500 km | 1.58 (1.08-2.34) |
| Age 7-15, y | |
| No moves | 1 [Reference] |
| <5 km | 1.16 (1.05-1.28) |
| 5-29 km | 1.27 (1.14-1.42) |
| 30-99 km | 1.61 (1.32-1.95) |
| 100-499 km | 1.37 (1.10-1.70) |
| >500 km | 1.58 (0.99-2.53) |
| Age, 16-19, y | |
| No moves | 1 [Reference] |
| <5 km | 1.10 (0.99-1.23) |
| 5-29 km | 1.10 (0.99-1.22) |
| 30-99 km | 1.09 (0.92-1.30) |
| 100-499 km | 1.03 (0.87-1.22) |
| >500 km | 0.82 (0.53-1.27) |
| Age, ≥20, y | |
| No moves | 1 [Reference] |
| <5 km | 0.41 (0.36-0.46) |
| 5-29 km | 0.24 (0.21-0.27) |
| 30-99 km | 0.20 (0.16-0.24) |
| 100-499 km | 0.16 (0.13-0.19) |
| >500 km | 0.08 (0.05-0.12) |
Abbreviation: HR, hazard ratio.
a
Adjusted for age, quadratic age, sex, foreign background, family history of severe mental illness, parental death before age 16 years, disposable income quintile, mother’s age at participant birth, population density at birth (log transformed people per square kilometer,) and distance and number of moves (categorical) in previous age periods (except age 0-6 years).