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Table 2 Serum vitamin D concentrations for depression variables of study population: the Third National Health and Nutrition Examination Survey¹

From: Serum vitamin D concentrations are related to depression in young adult US population: the Third National Health and Nutrition Examination Survey

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
  1. 1Depression was assessed using the Diagnostic Interview Schedule (DIS) developed by the National Institute of Mental Health.
  2. 2 Values are means ± standard error of mean