# Impact of Work Environment Absent of Natural Light on Vitamin D Levels

> **NCT01385085** · — · UNKNOWN · sponsor: **Medical Corps, Israel Defense Force** · enrollment: 300 (estimated)

## Conditions studied

- Vitamin D Deficiency

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01385085
- **Lead sponsor:** Medical Corps, Israel Defense Force
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2011-11
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 300 (ESTIMATED)
- **Last updated:** 2011-06-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01385085

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01385085, "Impact of Work Environment Absent of Natural Light on Vitamin D Levels". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT01385085. Licensed CC0.

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