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A Study for Lower Limit of Urinary Iodine for Iodine Appropriate Pregnant Women

A Study for Lower Limit of Urinary Iodine for Iodine Appropriate Pregnant Women

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1900027817
Enrollment
Unknown
Registered
2019-11-30
Start date
2020-01-01
Completion date
Unknown
Last updated
2019-12-10

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

Conditions

subclinical hypothyroidism

Interventions

Case series:Nil

Sponsors

Shenzhen Center for Chronic Disease Control
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. pregnant with a single fetus; 2. pregnant without history of thyroid diseases; 3. subjects diagnosed as subclinical hypothyroidism in the outpatient clinic of the endocrinology department.

Exclusion criteria

Exclusion criteria: 1. subjects with a visible or palpable goiter; 2. subjects who took thyroid-related medicine or iodine-containing supplements within the past 3 months; 3. pregnant women who had some other gynecologic condition,such as uterine fibroids.

Design outcomes

Primary

MeasureTime frame
urine iodine;plasma iodine;thyroid stimulating hormone, TSH;free thyroxine (FT4);—

Secondary

MeasureTime frame
urine creatinine;urine volume;—

Countries

China

Contacts

Public ContactYang Xiao-guang

Shenzhen Center for Chronic Disease Control

xgyangcdc@vip.sina.com+86 0755-25503862

Outcome results

None listed

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