Effects of sunlight exposure and vitamin D supplementation on vitamin D levels in postmenopausal women in rural Thailand: A randomized controlled trial

Not Applicable

Completed

• Conditions: postmenopausal women; Postmenopausal women, Sunlight, Vitamin D2

• Registration Number: TCTR20180223003
• Lead Sponsor: FACULTY OF MEDICINE RESEARCH GRANT KHON KAEN UNIVERSITY

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Completion: 2017-09-15
• Study Start: 2018-02-23
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Female
• Target Recruitment: 52

Inclusion Criteria

Postmenopausal women aged between 50-70 years old from the Sam Liam area of Khon Kaen’s Muang district

Exclusion Criteria

- have thyroid, parathyroid, liver, or kidney disorders;
- have previous histories of alcohol consumption, smoking, drug addiction, or substance abuse;
- be allergic to vitamin D supplementation; have taken calcium or vitamin D supplements within the previous three months or osteoporosis medication (i.e., bisphosphonates, raloxifene, strontium ranelate, teriparatide, etc.) within the previous six months;
- did not take these medicines that effect to 25(OH)D levels (i.e., anti-convulsant, anti-TB drugs especially rifampicin);
- suffer from frailty; or be bed ridden

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
the effect of sunlight and sunlight with vitamin D on serum 25(OH)D 12 weeks serum 25(OH)D levels

Secondary Outcome Measures

Name	Time	Method
the effect of sunlight and sunlight with vitamin D on serum PTH, Calcium, Phosphate 12 weeks serum PTH, Calcium, Phosphate levels