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Table 1 Demographic and clinical data at baseline according to depressive symptom status

From: Association between vitamin b12 levels and melancholic depressive symptoms: a Finnish population-based study

 

Depressive symptoms status

P-value

 

BDI score <10

N = 2377

BDI score ≥10

N = 429

 

Female, n (%)

1215 (51)

263 (61)

<0.001

Age, years, mean (SD)

59 (8)

61 (9)

<0.001

Body mass index (kg/m2), mean (SD)

27.3 (4.7)

28.6 (5.6)

<0.001

Education years, mean (SD)

11 (8.14)

10 (8.13)

<0.001

Marital status, n (%)

  

<0.001

Married

1842 (78)

286 (67)

 

Single

181 (8)

47 (11)

 

Separated

215 (9)

61 (14)

 

Widowed

130 (5)

33 (8)

 

Employed, n (%)

1229 (52)

113 (26)

<0.001

Current smoker, n (%)

508 (21)

111 (26)

0.038

Using alcohol, n (%)

1465 (62)

225 (52)

<0.001

Leisure time physical activity, n (%)

  

<0.001

Low

375 (16)

141 (35)

 

Moderate

1391 (60)

218 (54)

 

High

561 (24)

46 (11)

 

Chronic diseases sum index (0–7), mean (SD)

0.60 (1.06)

1.12 (1.30)

<0.001

Use of antidepressive medication, n (%)

71 (3)

77 (18)

<0.001

  1. Abbreviations. BDI-score ≥10 includes 291 subjects with non-melancholic DS and 138 subjects with melancholic DS.
  2. BDI = Beck Depression Inventory.
  3. DS = depressive symptoms.