Vitamin D Supplementation and Effects on Mood in Emergency Medicine Residents

Not Applicable

Completed

• Conditions: Seasonal Mood Disorder
• Interventions: Dietary Supplement: Vitamin D; Dietary Supplement: No Vitamin D

• Registration Number: NCT03739671
• Lead Sponsor: Spectrum Health - Lakeland

Brief Summary

Seasonal mood changes, and even feelings of depression, appear to have an association with decreased amounts of vitamin D in people living in geographic areas where exposure to sunlight during the winter months is relatively low. In this study, PGY-2 and PGY-3 Emergency Medicine residents at Lakeland Health will fill out PHQ-9 surveys for a total of 6 months (October-March), filled out at the end of each month. This is the time of year in southwest Michigan where exposure to direct sunlight is the lowest. The results of the individual surveys will be trended for the entire six months to see if individuals responds more positively after Vitamin D supplementation is initiated between months 3 and 4. Vitamin D supplementation will be 5000 units daily for the months of January-March.

Detailed Description

Not available

Study Timeline

• Study Start: 2018-10-01
• Study First Submitted: 2018-11-09
• Study First Submitted QC: 2018-11-09
• Study First Posted: 2018-11-14
• Primary Completion: 2020-03-30
• Study Completion: 2020-04-30
• Status Verified: 2024-11
• Last Update Submitted: 2024-11-26
• Last Update Posted: 2024-11-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 27

Inclusion Criteria

• PGY-2 and PGY-3 Emergency Medicine Residents at Lakeland Health

Exclusion Criteria

• Nonresidents and PGY-1 and PGY-4 Emergency Medicine residents at Lakeland Health

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Vitamin D supplementation	Vitamin D	Group receiving vitamin D supplementation
Non-vitamin D supplementation	No Vitamin D	Group not receiving vitamin D supplementation

Primary Outcome Measures

Name	Time	Method
Effect of vitamin D on resident mood	6 months	Using the Patient Health Questionnaire 9 (PHQ-9) survey results, data will be analyzed to determine if vitamin D helped increase positive responses as it correlates to mood. Using the Patient Health Questionnaire - 9 to determine the severity of the depressive moods. (Scaled from 0-27 with higher numbers being more severe. 0-4 is minimal, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe)

Trial Locations

Locations (1)

Lakeland Regional Healthcare; 🇺🇸 Saint Joseph, Michigan, United States