Establishing RIs for TSH in Children Under the Age of Two Years

Sponsor
Aga Khan University Hospital, Pakistan (Other)
Overall Status
Completed
CT.gov ID
NCT04877665
Collaborator
(none)
131
1
7.9
16.5

Study Details

Study Description

Brief Summary

Reference intervals (RIs) of thyroid-stimulating hormone (TSH) and free thyroxine (FT4) are age, assay and population specific. Currently, the age and assay-specific RIs for TSH are not available for children under two years of age. This study aimed to establish reference intervals for serum concentrations of TSH and FT4 in healthy children aged 1-24 months as per CLSI C28-A3 guidelines.

Condition or Disease Intervention/Treatment Phase

    Detailed Description

    A prospective cross-sectional study was conducted at the Section of Chemical Pathology, Department of Pathology and Laboratory Medicine, AKUH Karachi Pakistan, from August 2018 to March 2019 after approval from The Aga Khan University Ethics Review Committee.

    Healthy children from 1 to 24 months visiting the clinical lab for serum vitamin D testing were invited to participate in the study.

    Their health status was determined by asking questions related to their medical medical history after informed consent from their parents/guardian. Children with recent abnormal total leucocyte or neutrophil count in the medical record or positive microbial cultures, history of any diagnosed disease or infection, history of hospitalization during the previous four weeks, congenital hypothyroidism or transient congenital hypothyroidism, history of maternal thyroid illness, or any medications with potential influences on the thyroid function, such as amiodarone, anti-epileptic drugs, glucocorticoids were excluded.

    The RIs were established using the CLSI, C28-A3 guidelines, using a sample size of at least 120 specimens.

    Serum TSH and FT4 were measured on ADVIA Centaur (Siemens Diagnostics, US), using chemiluminescence immunoassay.

    The EP evaluator version 10 and SPSS version 21 were used for data analysis. Kolmogorov-Smirnov test assessed the normality of the data.

    The RIs based on central 95% of the population were established. The median age of subjects, TSH and FT4 levels were calculated. For assessing differences in the male and female gender, Students' t' test was applied, taking p-value <0.050 as significant. Spearman's test computed the correlation between age, TSH and FT4 levels.

    A total of 132 children were included in the study; one subject with confirmed congenital hypothyroidism (CH) was excluded from the study, shown in figure 1. The TSH and FT4 values of 131 subjects were included to establish the RIs. The median (IQR) age of the study subjects was 12 (11) months, and 78 (59.5%) were male.

    Reference interval based on central 95% of the population for TSH is 0.73-4.94 µIU/mL and for FT4 is 0.81-1.51 ng/dL.

    Study Design

    Study Type:
    Observational [Patient Registry]
    Actual Enrollment :
    131 participants
    Observational Model:
    Other
    Time Perspective:
    Prospective
    Official Title:
    Establishing Reference Intervals for Thyroid Stimulating Hormone in Children Under the Age of Two Years
    Actual Study Start Date :
    Aug 1, 2018
    Actual Primary Completion Date :
    Mar 30, 2019
    Actual Study Completion Date :
    Mar 30, 2019

    Outcome Measures

    Primary Outcome Measures

    1. Establishing Reference Intervals for Thyroid Stimulating Hormone in Children under the age of two years [August 2018 to March 2019]

      This study aimed to establish reference intervals for serum concentrations of TSH and FT4 in healthy children aged 1-24 months as per CLSI C28-A3 guidelines.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    1 Month to 24 Months
    Sexes Eligible for Study:
    All
    Inclusion Criteria:
    • Healthy children from 1 to 24 months
    Exclusion Criteria:
    • recent illness, hospitalization, medication and maternal history of thyroid-related diseases, recent abnormal total leucocyte or neutrophil count in the medical record or positive microbial cultures, history of any diagnosed disease or infection, history of hospitalization during the previous four weeks, congenital hypothyroidism or transient congenital hypothyroidism, history of maternal thyroid illness, or any medications with potential influences on the thyroid function, such as amiodarone, anti-epileptic drugs, glucocorticoids

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 The Aga Khan University Karachi Sindh Pakistan 3500

    Sponsors and Collaborators

    • Aga Khan University Hospital, Pakistan

    Investigators

    • Principal Investigator: Siraj Muneer, The Aga Khan University

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Siraj Muneer, Resident, Aga Khan University Hospital, Pakistan
    ClinicalTrials.gov Identifier:
    NCT04877665
    Other Study ID Numbers:
    • 5255-Pat-ERC-18
    First Posted:
    May 7, 2021
    Last Update Posted:
    May 7, 2021
    Last Verified:
    May 1, 2021
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Siraj Muneer, Resident, Aga Khan University Hospital, Pakistan
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of May 7, 2021