Distribution of key covariates and prevalence and incidence of adulthood depressive symptoms in South Korea
| Key covariates | Study population for prevalence analysis | Study population for incidence analysis | ||||
|---|---|---|---|---|---|---|
| Total | Prevalence of depressive symptoms | Total | Incidence of depressive symptoms | |||
| N | N (%) | p Value* | N | N (%) | p Value* | |
| Sex | <0.001 | <0.001 | ||||
| Male | 5143 | 879 (17.1) | 4118 | 585 (14.2) | ||
| Female | 6383 | 1795 (28.1) | 4445 | 902 (20.3) | ||
| Age (years) | <0.001 | <0.001 | ||||
| 18–29 | 1584 | 185 (11.7) | 1350 | 184 (13.6) | ||
| 30–39 | 2393 | 315 (13.2) | 2004 | 274 (13.7) | ||
| 40–49 | 2068 | 399 (19.3) | 1605 | 230 (14.3) | ||
| 50–59 | 1682 | 413 (24.6) | 1258 | 222 (17.7) | ||
| 60 or more | 3799 | 1362 (35.9) | 2346 | 577 (24.6) | ||
| Education | <0.001 | <0.001 | ||||
| Junior high school or less | 5101 | 1806 (35.4) | 2423 | 778 (24.3) | ||
| Junior high school graduate | 3508 | 590 (16.8) | 2398 | 414 (14.7) | ||
| College graduate | 1177 | 133 (11.3) | 861 | 134 (13.5) | ||
| University graduate or more | 1740 | 15 (8.3) | 1394 | 161 (10.4) | ||
| Employment status | <0.001 | <0.001 | ||||
| Unemployed | 4744 | 1586 (33.2) | 2422 | 520 (20.4) | ||
| Precarious employment | 2010 | 445 (22.1) | 1230 | 296 (19.4) | ||
| Unpaid family worker | 742 | 143 (19.3) | 475 | 128 (21.2) | ||
| Self-employed | 1635 | 323 (20.0) | 1045 | 236 (18.4) | ||
| Permanent employment | 1870 | 133 (7.1) | 118 | 165 (9.8) | ||
| Business owner | 142 | 14 (9.9) | 104 | 18 (14.8) | ||
| Full-time student | 353 | 30 (8.5) | 282 | 24 (7.8) | ||
| Household income | <0.001 | <0.001 | ||||
| Less than 1Q | 2879 | 1267 (44.0) | 1135 | 444 (28.1) | ||
| 1Q–2Q | 2882 | 774 (26.9) | 1615 | 409 (20.2) | ||
| 2Q–3Q | 2879 | 402 (14.0) | 2028 | 355 (14.9) | ||
| 3Q+ | 2886 | 231 (8.0) | 2298 | 279 (10.8) | ||
*p Value of the χ2 test comparing prevalence and incidence of adulthood depressive symptoms across different groups.
Q, quartile.