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Table 6 Likelihood of having depression according to vitamin D status in 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

Major depression

OR (95% CI)

(n = 7877)

Depression >2 y

OR (95% CI)

(n = 7970)

Current depression

OR (95% CI)

(n = 1221)

Unadjusted analysis for serum vitamin D

   Deficient (<50 nmol/L)

0.95 (0.65 - 1.37)

1.43 (1.09 - 1.86)

2.01 (1.25 - 3.24)

   Insufficient (50-75 nmol/L)

0.92 (0.66 - 1.26)

1.07 (0.78 - 1.46)

0.75 (0.44 - 1.27)

   Sufficient (>75 nmol/L) 2

1.0

1.0

1.0

   P-Value 3

0.86

0.022

<0.001

Multivariate adjusted analysis for serum vitamin D 4

   Deficient (<50 nmol/L)

1.17 (0.71 - 1.90)

0.84 (0.57 - 1.23)

1.85 (0.90 - 3.81)

   Insufficient (50-75 nmol/L)

0.93 (0.62 - 1.40)

0.77 (0.53 - 1.13)

0.70 (0.38 - 1.29)

   Sufficient (>75 nmol/L) 2

1.0

1.0

1.0

   P-Value 3

0.60

0.39

0.021

  1. 1Depression was assessed using the Diagnostic Interview Schedule developed by the National Institute of Mental Health. Odds ratios and 95% confidence intervals from the logistic regression analysis
  2. 2 Referent category
  3. 3 Significance for the Wald F in the multivariate logistic regression
  4. 4 Logistic regression analysis was adjusted for sex, race-ethnicity, age, geographical location, urbanization, vitamin/mineral supplement use, prescription medicine use, poverty income ratio, body mass index, and serum creatinine
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