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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.