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Establishment of reference ranges for serum vitamin A and vitamin K levels in healthy children in Dalian area: a cross-sectional study

Establishment of reference ranges for serum vitamin A and vitamin K levels in healthy children in Dalian area: a cross-sectional study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600127613
Enrollment
Unknown
Registered
2026-07-02
Start date
2026-07-02
Completion date
Unknown
Last updated
2026-07-13

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

Conditions

Vitamin deficiency

Interventions

Stratified analysis was performed by age group, sex, and season.:None

Sponsors

Dalian Women and Children's Medical Group
Lead Sponsor

Eligibility

Sex/Gender
All
Age
No minimum to 14 Years

Inclusion criteria

Inclusion criteria: 1. Aged 0-14 years; 2. Clinical record as a healthy physical examination.

Exclusion criteria

Exclusion criteria: Severe abnormalities in liver and kidney function, chronic wasting diseases, and acute infectious diseases.

Design outcomes

Primary

MeasureTime frame
Serum vitamin A concentration;Serum vitamin K1 concentration;Serum vitamin K2 concentration;—

Countries

China

Contacts

Public ContactHongda Ge

Dalian Women and Children's Medical Group

17709887855@163.com+86 411 66861436

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jul 23, 2026