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Table 1 Comparison between users and non-users of dietary supplements

From: Direct and indirect risk associated with the use of dietary supplements among persons with dementia in a Norwegian memory clinic

Persons with dementia’s characteristics

Users of DS

Non-Users of DS

 

Total population

n = 70

n = 81

p-value

n = 151

Age, year (mean (±SD))

72.7

(11.2)

73.7

(9.8)

0.547

73.3

(10.4)

Women (n (%))

49.0

(70.0)

46.0

(56.8)

0.094

95.0

(62.9)

Living alone (n (%))

23.0

(32.9)

25.0

(30.9)

0.793

48.0

(31.8)

Home care services (n (%))

31.0

(44.3)

33.0

(40.7)

0.660

64.0

(42.4)

Numbers of PD (mean (±SD))

4.7

(3.4)

4.4

(2.6)

0.582

4.6

(3.0)

Persons using dementia drugs (n (%))

29.0

(41.4)

41.0

(50.6)

0.259

70.0

(46.4)

Numbers of OTC *(mean (±SD))

0.8

(0.8)

0.7

(0.7)

0.334

0.7

(0.7)

MMSE-NR score (mean (±SD))

21.7

(4.5)

17.8

(6.3)

<0.001

19.6

(5.8)

RDRS-2 score (mean (±SD))

34.5

(8.8)

38.5

(11.5)

0.019

36.7

(10.5)

  1. Abbreviations: DS dietary supplements, SD standard deviation, PD prescription drug, OTC over-the-counter drug, MMSE-NR Mini Mental State Examination-Norwegian Revision, RDRS-2 Rapid Disability Rating Scale-2
  2. *Data are missing from two persons
  3. The RDRS-2 scale range from 21 to 84, where a score of 21 points indicates normal function in activities of daily living and a score of 84 points indicate complete dysfunctionality. The MSEE-NR scale range from zero to 30, where 30 points indicate normal cognitive function. Statistics are independent Student’s t-test for continuous variables such as age, numbers of PD and OTC, MMSE-NR and RDRS-2. Statistics are Pearson’s chi-square or Fisher’s exact tests for categorical variables such as gender, living alone, receiving help from home care service and using dementia drugs. Bonferroni adjusted α was 0.05 / 9 resulting in α < 0.006. Significant comparisons after adjustment are printed bold
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