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CompletedNCT04469257Updated Jul 14, 2020

SUN LIGHT EXPOSURE AND VITAMIN D LEVEL IN NURSING HOME

An interventional study of Sunbathing in Nursing Home and Vitamin D Deficiency, sponsored by Tokat Gaziosmanpasa University. Completed at 1 site in Turkey. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2020-07-14.

Sponsored by Tokat Gaziosmanpasa University · Not applicable, Interventional, and Supportive care

From the registry’s dates

  • Registered 2 years after the study started (first participant enrolled Jun 2018, registered Jul 2020).
Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
60 Years and older
Sex
All
01

Study summary

Objective: The aim of the present study was to determine the effect of nursing interventions and sunlight exposure to reach optimum vitamin D levels by individuals living in nursing homes on vitamin D levels.

Material Method: In the first stage of this two-stage randomized-controlled experimental study with pretest-posttest design conducted in June - August 2018 period in the nursing home in Central Town of Tokat Province, the questionnaire prepared by the researcher, standardized mini mental test, Fitzpatrick skin typing questionnaire and Katz Index of activities of daily living were applied. Intervention (n=20) and control (n=20) groups were established with individuals using simple random method according to age, gender, skin type and vitamin D level. In the second stage, 30-35% of the body surface area of individuals in the intervention group was exposed to sunlight five days a week in July. For the participants in the control group, sunbathing was not offered. 25(OH)D, calcium, parathormone, phosphorus, alkaline phosphatase and albumin levels of all individuals were measured in blood samples taken at the beginning and end of the study. Two-way mixed ANOVA, Mann-Whitney U test, Wilcoxon signed rank test and Chi-square tests were used to evaluate the data.

02

Conditions studied

  • Nursing Home
  • Vitamin D Deficiency

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03

In context

Vitamin D Deficiency

772 studies on the registry are indexed under Vitamin D Deficiency; 61 are open to participants now.

This study's enrollment of 40 is below the median of 77 across 564 interventional studies indexed under Vitamin D Deficiency.

Browse Vitamin D Deficiency studies →

Lead sponsor

Tokat Gaziosmanpasa University is the lead sponsor of 164 studies on the registry; 38 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
60 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • individuals (25 women and 41 men) who lived in nursing home during June 27, 2018 and August 01, 2018 period
  • 60 years and older
  • able to perform their daily life activities independently
  • agreed to participate in the study

Exclusion criteria

Exclusion Criteria:

  • malignancies
  • advanced liver and kidney failure
  • history of gastric-bowel operation
  • skin disease that could prevent sun exposure
  • hyperparathyroidism
  • malabsorption
  • use of drugs that affect the levels of vitamin D, calcium, PTH and phosphorus and albumin
05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
40 participants (actual)

Study arms

  • Experimental
    Sunbathing

    During the activities for the intervention group, the individuals were exposed directly to sun in the nursing home garden on open and sunny days without sunscreen for five days a week for a month with an average of 21.0 ± 5.0 min (min 15 min - max 30 min). About 30-35% of their bodies (hand, face, neck, forearm open up to elbows and legs open up to the knee caps) were open. Sunbathing sessions were held between 10:30 and 11:30 to prevent elderly individuals from being affected by extreme temperatures, and UV index values were monitored during the time and duration of the event at WHO website (http://www.who.int/uv/resources/link/indexlinks/en/, Access date: July 1, 2018). During the hours of the day when UV index was \> 6-7, elderly individuals were not taken out. After each sunbathing session, elderly individuals in the intervention group were evaluated for sensitivity and erythema that may occur in the exposed body areas

    Behavioral: Sunbathing

  • No intervention
    Control

    Elderly individuals in the control group were not invited to the activities held in the nursing home garden. There were no restrictions on them for not going out in the sun or spending time inside the nursing home

Interventions

  • BehavioralSunbathing

    the individuals were exposed directly to sun in the nursing home garden on open and sunny days without sunscreen for five days a week for a month with an average of 21.0 ± 5.0 min (min 15 min - max 30 min). About 30-35% of their bodies (hand, face, neck, forearm open up to elbows and legs open up to the knee caps) were open.

06

What researchers measure

Primary outcomes

  1. Vitamin D

    Vitamin D Level

    Time frame: 5 week

Secondary outcomes

  1. Parathormone

    Parathormone level

    Time frame: 5 week

  2. Calicium

    Calcium Level

    Time frame: 5 week

  3. Phosphorus

    Phosphorus level

    Time frame: 5 week

  4. Alkaline Phosphatase

    Alkaline phosphatase level

    Time frame: 5 week

  5. Albumin

    Albumin level

    Time frame: 5 week

07

Study locations

1 site
  • Tokat Gaziosmanpasa University
    Tokat, 60100, Turkey
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 14, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04469257
Lead sponsor
Tokat Gaziosmanpasa University
Responsible party
Fatih OKAN (LECTURER PHD., Tokat Gaziosmanpasa University) — Principal investigator
First posted
Jul 14, 2020
Start date
Jun 27, 2018
Primary completion
Aug 1, 2018
Completion
Aug 1, 2018
Last update
Jul 14, 2020

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2020. You cannot join it, but the record below documents what was studied.

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