Table 2.
Incidence rates and hazard ratios (HRs) for mental disorder diagnostic categories for the most upwardly mobile and the most downwardly mobile cohort members
| n | Incidence rate | Basic adjustmenta | Additional adjustmentb | |
|---|---|---|---|---|
| Any mental disorder | ||||
| The most upwardly mobile (quintile 1 at birth to quintile 5 at age 15)c | 1640 | 847.3 | 0.43 (0.41, 0.45) | 0.62 (0.59, 0.66) |
| The most downwardly mobile (quintile 5 at birth to quintile 1 at age 15)d | 1331 | 973.2 | 1.48 (1.39, 1.57) | 1.27 (1.19, 1.35) |
| Substance misuse disorders | ||||
| The most upwardly mobile | 204 | 98.5 | 0.24 (0.21, 0.28) | 0.42 (0.36, 0.49) |
| The most downwardly mobile | 213 | 143.6 | 2.22 (1.91, 2.59) | 1.74 (1.48, 2.04) |
| Personality disorders | ||||
| The most upwardly mobile | 303 | 146.9 | 0.30 (0.27, 0.34) | 0.49 (0.43, 0.55) |
| The most downwardly mobile | 315 | 213.6 | 2.06 (1.82, 2.33) | 1.68 (1.48, 1.92) |
| Broadly defined schizophrenia | ||||
| The most upwardly mobile | 236 | 114.1 | 0.42 (0.37, 0.48) | 0.58 (0.51, 0.67) |
| The most downwardly mobile | 184 | 124.1 | 1.62 (1.38, 1.90) | 1.35 (1.13, 1.60) |
| Mood disorders | ||||
| The most upwardly mobile | 669 | 327.6 | 0.61 (0.56, 0.66) | 0.84 (0.77, 0.91) |
| The most downwardly mobile | 503 | 343.8 | 1.36 (1.24, 1.49) | 1.15 (1.04, 1.28) |
| Anxiety/somatoform disorders | ||||
| The most upwardly mobile | 946 | 469.2 | 0.43 (0.40, 0.46) | 0.63 (0.59, 0.67) |
| The most downwardly mobile | 817 | 569.1 | 1.62 (1.50, 1.74) | 1.40 (1.29, 1.51) |
| Eating disorders | ||||
| The most upwardly mobile | 222 | 107.5 | 1.23 (1.06, 1.43) | 1.29 (1.10, 1.50) |
| The most downwardly mobile | 151 | 101.8 | 0.92 (0.78, 1.09) | 0.90 (0.76, 1.08) |
Incidence rate is reported per 100,000 person years
aBasic adjustment—hazard ratios adjusted for gender, birth year and calendar time
bAdditional adjustment—hazard ratios adjusted for gender, birth year, calendar time, parental mental disorders, parental educational attainment level, degree of urbanicity at birth and number of changes in child-parental separation status
cThe reference group are those persons who were born and remained in quintile 5 at age 15
dThe reference group are those persons who were born and remained in quintile 1 at age 15