Table 2.
Prevalence of DSM-IV psychiatric disorders and mental health-related quality of life among adults aged 55 years and older
| Total N (weighted %) | Age 55–64 N (weighted %) | Age 65–74 N (weighted %) | Age 75–84 N (weighted %) | Age 85+ N (weighted %) | χ2 (df) | |
|---|---|---|---|---|---|---|
| Mood disorders | ||||||
| Major depression | 751 (5.63) | 420 (7.41) | 184 (4.58) | 107 (3.87) | 40 (4.23) | 13.06 (3)*** |
| Dysthymia | 138 (0.94) | 87 (1.34) | 27 (0.67) | 17 (0.54) | 7 (0.77) | 4.80 (3)** |
| Mania or hypomania | 207 (1.49) | 131 (2.27) | 49 (1.26) | 23 (0.53) | 4 (0.50) | 10.24 (3)*** |
| Any mood disorder | 914 (6.77) | 518 (9.02) | 228 (5.68) | 128 (4.48) | 40 (4.23) | 17.28 (3)*** |
| Anxiety disorders | ||||||
| Panic disorder | 185 (1.35) | 120 (2.02) | 34 (0.91) | 23 (0.77) | 8 (0.74) | 6.10 (3)** |
| Social phobia | 205 (1.45) | 129 (2.14) | 42 (1.08) | 28 (0.83) | 6 (0.49) | 11.14 (3)*** |
| Specific phobia | 766 (5.79) | 432 (7.74) | 200 (4.91) | 106 (3.84) | 28 (3.12) | 12.84 (3)*** |
| Generalized anxiety disorder | 353 (2.80) | 206 (3.73) | 84 (2.28) | 45 (1.78) | 18 (2.20) | 5.11 (3)** |
| Post-traumatic stress disorder | 484 (3.48) | 281 (4.67) | 109 (2.75) | 80 (2.59) | 14 (1.76) | 10.31 (3)*** |
| Any anxiety disorder | 1509 (11.39) | 831 (14.81) | 379 (9.45) | 239 (8.40) | 60 (7.15) | 18.76 (3)*** |
| Substance use disorders | ||||||
| Alcohol abuse/dependence | 418 (3.48) | 283 (5.58) | 93 (2.39) | 40 (1.73) | 2 (0.06) | 34.06 (3)*** |
| Any drug abuse/dependence | 50 (0.42) | 42 (0.84) | 7 (0.19) | 0 (0.00) | 1 (0.10) | 7.93 (3)*** |
| Any substance use disorder | 450 (3.75) | 308 (6.07) | 99 (2.57) | 40 (1.73) | 3 (0.15) | 39.24 (3)*** |
| Nicotine dependence | 1123 (9.29) | 710 (14.02) | 310 (8.49) | 90 (3.15) | 13 (1.36) | 43.47 (3)*** |
| Personality disorders | ||||||
| Borderline | 449 (3.16) | 278 (4.66) | 106 (2.54) | 53 (1.58) | 12 (1.19) | 13.82 (3)*** |
| Antisocial | 176 (1.64) | 119 (2.59) | 43 (1.34) | 12 (0.59) | 2 (0.13) | 19.96 (3)*** |
| Avoidant | 172 (1.30) | 111 (1.95) | 38 (0.94) | 15 (0.58) | 8 (0.87) | 6.67 (3)*** |
| Dependent | 37 (0.26) | 22 (0.36) | 8 (0.14) | 6 (0.24) | 1 (0.19) | 1.55 (3) |
| Obsessive-compulsive | 779 (6.53) | 401 (7.64) | 219 (6.33) | 118 (4.90) | 41 (5.39) | 5.53 (3)** |
| Paranoid | 339 (2.30) | 197 (3.17) | 90 (2.02) | 39 (1.24) | 13 (1.34) | 7.84 (3)*** |
| Schizoid | 286 (2.20) | 157 (2.83) | 73 (1.80) | 49 (1.77) | 7 (1.13) | 4.60 (3)** |
| Histrionic | 105 (0.70) | 59 (0.89) | 29 (0.67) | 11 (0.39) | 6 (0.58) | 3.13 (3)* |
| Schizotypal | 364 (2.40) | 222 (3.53) | 74 (1.53) | 53 (1.69) | 15 (1.05) | 11.97 (3)*** |
| Narcissistic | 566 (3.91) | 303 (4.90) | 148 (3.43) | 88 (2.95) | 27 (2.61) | 5.95 (3)** |
| Any cluster A | 809 (5.56) | 458 (7.52) | 200 (4.40) | 121 (4.03) | 30 (2.75) | 15.10 (3)*** |
| Any cluster B | 1013 (7.51) | 579 (10.17) | 265 (6.57) | 137 (4.75) | 39 (3.93) | 20.42 (3)*** |
| Any cluster C | 890 (7.36) | 471 (8.87) | 242 (6.89) | 131 (5.34) | 46 (5.97) | 7.97 (3)*** |
| Any personality disorder | 1913 (14.53) | 1018 (18.14) | 519 (13.24) | 294 (10.36) | 88 (10.67) | 20.49 (3)*** |
| Number of mental disorders (mean, SE) | 0.84 (0.02) | 0.50 (0.02) | 0.36 (0.02) | 0.30 (0.03) | Wald F+108.32*** | |
| Mental health-related quality of life (mean, SE) | 52.12 (0.18) | 52.99 (0.20) | 51.93 (0.24) | 50.89 (0.52) | Wald F+7.09*** |
*
p<0.05
**
p<0.01
***
p<0.001