The Yield of Postnatal Thyroid Function Test in the Well Baby Nursery

Completed

Brief Summary: Thyroid function test are performed in the well baby nursery to newborn infants of mothers with hypothyroidism, or as part of neonatal jaundice investigation. As thyroid function test are also part of the national screening test program, the investigators raised the option that the above management is unnecessary, and managed a study to investigate it.

Detailed Description: Thyroid function test are performed in the well baby nursery to newborn infants of mothers with hypothyroidism, or as part of neonatal jaundice investigation. As thyroid function test are also part of the national screening test program, the investigators raised the option that the above management is unnecessary, and managed a study to investigate it.

The study is retrospective. About 4000 infants are born in the center every year. The investigators wish to examine data for 10 years, i.e. about 40000 files.

The investigators will collect all the national screening test program results and compare them to the thyroid function test performed in that center.

Recruitment & Eligibility

Inclusion Criteria

Exclusion Criteria

Arm && Interventions

Group	Intervention	Description
Newborn infants	Thyroid function test	Newborn infants born in our medical center

Primary Outcome Measures

Name	Time	Method
Hypothyroidism found in local test was missing by national screening test	10 years	The proportion of missed hypothyroidism in screening test (missing = found in local test and missed in national screening test)
Hypothyroidism found in screening test was missing in local test	10 years	The proportion of missed hypothyroidism in local test (missing = found in national screening test and missed in local test)

Secondary Outcome Measures

Name	Time	Method

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