Table 2.
Serum vitamin D concentrations for depression variables of study population: the Third National Health and Nutrition Examination Survey¹
| Characteristic | Serum vitamin D 2(nmol/L) |
|---|---|
| Person had a major depression (n = 7877) | |
| Yes (n = 622) | 79.8 ± 2.3 |
| No (n = 7255) | 77.9 ± 1.2 |
| Persons had depression episodes longer >2 y (n = 7970) | |
| Yes (n = 948) | 75.0 ± 1.8 |
| No (n = 7022) | 78.4 ± 1.2 |
| Persons having depression currently (n = 1221) | |
| Yes (n = 322) | 74.9 ± 2.7 |
| No (n = 889) | 81.2 ± 2.3 |
1Depression was assessed using the Diagnostic Interview Schedule (DIS) developed by the National Institute of Mental Health.
2 Values are means ± standard error of mean