Prevalence and Consequences of Vitamin D Deficiency in Pregnant Women in Switzerland

NCT02904720 | Completed

• 1 other identifier: 2015-00063
• Study Type: observational
• Target: 1,199
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to determine the prevalence of vitamin D deficiency among the population of pregnant women receiving prenatal care and giving birth at the investigators' clinic. The further purposes are to identify the population at risk for vitamin D deficiency and to analyse whether vitamin D deficiency is associated with pregnancy complications.

Conditions

Vitamin D Deficiency

Keywords

Vitamin D; Pregnancy

Outcome Measures

Primary Outcomes (1)

• Prevalence of vitamin D deficiency

  Number of patients with vitamin D deficiency after testing of vitamin D blood level at admission for prenatal care in our clinic

  Between the 1th and the 36th week of pregnancy

Secondary Outcomes (7)

• BMI as a risk factor for vitamin D deficiency

  Between the 1th and the 36th week of pregnancy

• Ethnicity as a risk factor for vitamin D deficiency

  Between the 1th and the 36th week of pregnancy

• Age as risk factor for vitamin D deficiency

  Between the 1th and the 36th week of pregnancy

• Period of the year as risk factor for vitamin D deficiency

  Between the 1th and the 36th week of pregnancy

• Smoking Status as risk factor for vitamin D deficiency

  Between the 1th and the 36th week of pregnancy

Other Outcomes (3)

• Association between vitamin D blood level and the mode of delivery at birth

  At delivery time

• Association between vitamin D blood level and the gestational age at delivery

  At delivery time

• Association between vitamin D blood level and newborn growth

  From week 1 until birth

Eligibility Criteria

• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

All the pregnant women attending prenatal care and giving birth at birth at our clinic

You may qualify if:

• Pregnant women attending prenatal care at our clinic who had a vitamin D blood-testing at admission

You may not qualify if:

• Pregnant women lost to follow-up, Birth outside our clinic

Sponsors & Collaborators

• Insel Gruppe AG, University Hospital Bern: lead
• Significantis GmbH: collaborator

Study Sites (1)

University Hospital Bern

Bern, 3010, Switzerland

Location

Related Publications (1)

• Christoph P, Challande P, Raio L, Surbek D. High prevalence of severe vitamin D deficiency during the first trimester in pregnant women in Switzerland and its potential contributions to adverse outcomes in the pregnancy. Swiss Med Wkly. 2020 May 28;150:w20238. doi: 10.4414/smw.2020.20238. eCollection 2020 May 18.

  PMID: 32502277 DERIVED

MeSH Terms

Conditions

Vitamin D Deficiency

Condition Hierarchy (Ancestors)

Avitaminosis; Deficiency Diseases; Malnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases

Study Officials

• Daniel Surbek, Professor

  Insel Gruppe AG, University Hospital Bern

  STUDY DIRECTOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: September 8, 2016
• First Posted: September 19, 2016
• Study Start: October 1, 2015
• Primary Completion: February 1, 2016
• Study Completion: February 1, 2016
• Last Updated: September 19, 2016

Record last verified: 2016-09

Data Sharing

• IPD Sharing: Will not share

Locations

CH (1)