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

Table 3 The relationship between assistance with DS administration and who initiated the use of DS calculated by logistic regression analysis

Initiator of DS use	Receiving assistance with DS
	Yes	No	Total	p-value	OR	95% CI
Persons with dementia themselves	4	16	20	0.50	Ref	Ref
Spouses	10	5	15	<0.01	6.40	1.47–27.83
Other relatives	2	12	14	0.50	0.53	0.09–3.24
Health care personnel	8	2	10	<0.01	12.80	2.02–81.12
Retailers	1	9	10	0.38	0.04	0.04–3.54
Total	25	44	69*

Abbreviations: DS dietary supplements, OR odds ratio, CI confidence interval
*Data are missing from one participant. Statistics are logistic regression for binary outcome
Significant results are printed in bold. We used an alpha level of 0.05 to evaluate statistical significance

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