Veleva, Bistra I.
Caljouw, Monique A. A.
Muurman, Astrid
van der Steen, Jenny T.
Chel, Victor G. M.
Numans, Mattijs E.
Poortvliet, Rosalinde K. E.
Article History
Received: 7 March 2021
Accepted: 27 September 2021
First Online: 19 October 2021
Declarations
:
: This post-hoc analysis used the data of a randomized control trial “The Effect of Ultraviolet B Irradiation Compared with Oral Vitamin D Supplementation on the Well-being of Nursing Home Residents with Dementia” [CitationRef removed]. The study was conducted in accordance with the declaration of Helsinki, and protocol was approved by the Medical Ethical Committee of Leiden University Medical Center (Registration No P16.010) on 11 April, 2016 and was registered in the Dutch Trial Register (NL5704). Participants were recruited from three nursing homes connected to the University Network for the Care sector South Holland (UNC-ZH). Team leaders of the nursing homes sent information letters with an informed consent form to all nursing home residents and their families. An independent physician with a specialty in internal medicine was assigned to answer the questions of the participants and their families. Written informed consent was obtained from the legal representatives of all participants.
: No individual person’s data is included in the manuscript.
: The authors declare that they have no competing interests.