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Table 4 Prevalence of vitamin D deficiency according to the depression status 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

Depression variables Total (n) Vitamin D Deficiency 2 % (n) Vitamin D insufficiency 3 % (n) Vitamin D sufficiency 4 % (n) P-Value 5
Person had a major depression (n = 7877) 0.86
   Yes 622 19.3 (215) 29.0 (191) 51.7 (216)  
   No 7255 19.6 (2453) 30.6 (2458) 49.8 (2344)  
Person had depression longer >2 y (n = 7970)   0.039
   Yes 948 24.7 (379) 29.6 (310) 45.7 (259)  
   No 7022 19.1 (2322) 30.5 (2369) 50.4 (2331)  
Person having depression currently (n = 1221) 0.003
   Yes 322 27.4 (138) 22.9 (99) 49.7 (95)  
   No 889 14.5 (276) 32.6 (285) 52.9 (328)  
  1. 1 Depression was assessed using the Diagnostic Interview Schedule developed by the National Institute of Mental Health.
  2. 2 Serum concentrations of 25 (OH) vitamin D <50 nmol/L
  3. 3 Serum concentrations of 25 (OH) vitamin D 50-75 nmol/L
  4. 4 Serum concentrations of 25 (OH) vitamin D >75 nmol/L
  5. 5 Significance of depression variable for proportions of persons with vitamin D deficiency, insufficiency, and sufficiency in the χ2 test