Table 3.
Depression score (PHQ-9) according to the age of subjects
| Age | Number | PHQ-9 |
F | p | |
|---|---|---|---|---|---|
| Depression (%)* | Mean±SD | ||||
| 10s (ages 10–19 yr) | 39 | 16 (41.0) | 7.56±7.82 | 6.844 | <0.001 |
| 20s (ages 20–29 yr) | 429 | 90 (21.0) | 5.25±4.97 | ||
| 30s (ages 30–39 yr) | 199 | 29 (14.6) | 4.63±4.88 | ||
| 40s (ages 40–49 yr) | 202 | 38 (18.8) | 4.69±4.88 | ||
| 50s (ages 50–59 yr) | 153 | 18 (11.8) | 3.78±4.07 | ||
| 60s (ages 60–69 yr) | 119 | 13 (10.9) | 3.32±4.43 | ||
| 70s (ages 70–79 yr) | 138 | 15 (10.9) | 3.18±3.77 | ||
| 80+ (ages 80 yr or more) | 48 | 12 (25.0) | 5.29±6.19 | ||
| Total | 1,327 | 231 (17.4) | 4.58±4.92 | ||
p-values are from ANOVA.
*
number of subjects with depression: PHQ-9, cutoff 9.
SD, standard deviation; PHQ-9, Patient Health Questionnaire 9-item scale