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The effect of free vitamin D-drops and tailor-made information on serum 25-hydroxyvitamin D among infants of immigrant origin in Oslo, Norway: a randomised controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN78298308
Enrollment
48
Registered
2006-12-14
Start date
2004-03-29
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vitamin D-deficiency Nutritional, Metabolic, Endocrine Nutritional deficiency

Interventions

Intervention group: Provision of free vitamin D drops and instruction on how to administer it to their infants, including a tailored-made information brochure about vitamin D and its sources which ha

Sponsors

The Directorate for Health and Social Affairs (Norway)
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Infants with Pakistani, Turkish or Somali background 2. Coming to routine consultation six weeks after birth in eight Health Centers in Oslo

Exclusion criteria

Exclusion criteria: Not applicable

Design outcomes

Primary

MeasureTime frame
1. Change in 25-hydroxyvitamin D from baseline (six week of age) to follow-up (three months of age) in the intervention group compared to the control group, adjusted for baseline level of 25-hydroxyvitamin D 2. Change in 25-hydroxyvitamin D from baseline to follow-up in the mothers in the intervention group compared to the mothers in the control group, adjusted for baseline level of 25-hydroxyvitamin D

Secondary

MeasureTime frame
Is there any difference between the groups at a second follow-up at eight months of age

Countries

Norway

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026