---
title: Uroflowmetry Results and Vitamin D Levels
nct_id: NCT04405141
overall_status: COMPLETED
sponsor: Umraniye Education and Research Hospital
study_type: OBSERVATIONAL
primary_condition: Lower Urinary Tract Symptoms
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT04405141.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT04405141"
ct_last_update_post_date: 2020-06-01
last_seen_at: "2026-05-12T06:20:42.513Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Uroflowmetry Results and Vitamin D Levels

**Official Title:** The Relationship Between Vitamin D Level and Lower Urinary Tract Symptoms in Women

**NCT ID:** [NCT04405141](https://clinicaltrials.gov/study/NCT04405141)

## Key Facts

- **Status:** COMPLETED
- **Study Type:** OBSERVATIONAL
- **Target Enrollment:** 186
- **Lead Sponsor:** Umraniye Education and Research Hospital
- **Conditions:** Lower Urinary Tract Symptoms, Vitamin D Deficiency, Calcium Deficiency
- **Start Date:** 2017-01-01
- **Completion Date:** 2017-12-30
- **CT.gov Last Update:** 2020-06-01

## Brief Summary

The investigators aimed to evaluate the relationship between LUTS and vitamin D with uroflowmetry parameters in female patients. They found no relation between vitamin D levels and LUTS in respect to uroflowmetry. However, in low vitamin D patients, Ca is related with urologic problems. The investigators believe that there is a need for studies emphasizing serum Ca levels in addition to vitamin D levels in patients with LUTS.

## Detailed Description

This retrospective cohort study included 186 female patients who admitted to LUTS. Demographic characteristics, medical history, calcium (Ca) and vitamin D including laboratory studies and uroflowmetry results as maximum urine flow rate (Qmax), average urine flow rate (Qav), and voided volume (V) were recorded. Patients were divided into two groups according to age (18-50 and ≥51) and vitamin D levels (\<20 and ≥20).

Laboratory parameters, uroflowmetry results, were compared between groups.

The study was approved by the local ethics committee (approval#22/06/2018-09.29-54132726-000-14136). The study was conducted in accordance to the Helsinki Declaration and Good Clinical Practices Guidelines.

## Eligibility

- **Minimum age:** 18 Years
- **Maximum age:** 50 Years
- **Sex:** FEMALE
- **Healthy Volunteers:** No

```
Inclusion Criteria:

Clinical diagnosis of low urinary tract symptom

Exclusion Criteria:

Urinary tract infection, Diabetes mellitus, Neurological disorder, Pregnancy Stone disease Other urinary system disorders.
```

## Primary Outcomes

- **Uroflowmetry Results** _(time frame: 12 months)_ — There was no significant relationship between age, creatinine, Qmax, Qav, V and vitamin D level (P\>0.05).

## Secondary Outcomes

- **Vitamin D Levels** _(time frame: 12 months)_

## Recent Field Changes (last 30 days)

- `design.enrollmentCount` — added _(2026-05-12)_
- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.maxAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `outcomes.secondary` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_

---

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*Source data (authoritative): https://clinicaltrials.gov/study/NCT04405141*  
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