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Table 1 Clinical characteristics of the patient and control groups

From: Vitamin D deficiency is common in psychogeriatric patients, independent of diagnosis

 

Patients

Controls

p-value

Gender % (female/male)

63.2/36.8

62.9/37.1

p = 0.965*

Age, mean (SD)

77.2 (6.5)

74.6 (1.3)

p = 0.002**

Smoking (%)

29.3

17.1

p = 0.042*

BMI (kg/m2), mean (SD)

25.3 (5.4)

25.9 (4.1)

p = 0.330***

Blood sampling season (winter, spring, summer, autumn) (%)

18/28/26/27

25/28/28/20

p = 0.515*

  1. Notes: *χ 2 = Chi-square test, **Mann–Whitney U-Test, ***Student’s t-test.