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Thyroid autoimmunity and early pregnancy loss in Jos, Nigeria
Abstract
Background: Early pregnancy loss is a challenging experience for both the patient and the physician; it is unfortunately a common complication of human gestation. Early pregnancy loss is defined as the termination of pregnancy before 20 weeks of gestation or with a fetal weight of <500 g. Immunological disorders have been attributed to early pregnancy loss in addition to chromosomal abnormalities. Thyroid autoimmunity is one of the immunological causes of early pregnancy loss that has been poorly studied in sub‑Saharan Africa.
Objective: This study was aimed at determining the relationship between early pregnancy loss and thyroid autoimmunity in Jos, North‑Central Nigeria.
Patients and Methods: This was a case‑control study involving 44 women with a current history of miscarriage at an average gestational age of 11.57 ± 4.3 weeks (cases) and 44 pregnant women with previous history of delivery with no history of miscarriage(s) at a mean gestational age of 17.9 ± 4.9 weeks (controls). Serum thyroglobulin antibody (TgAb) and thyroid peroxidase antibody (TPOAb) were assayed by Electro‑chemiluminescence immunoassay (ECLIA) using Cobas e411 auto analyzer (by Roche). The data obtained were analyzed using SPSS version 16.0.
Results: TgAb was neither present in the cases nor in the control group. The prevalence for TPOAb was 11.4% for the cases and 4.5% for the controls. The difference in proportion was not statistically significant (P = 0.434).
Conclusion: There was no statistically significant relationship between thyroid autoimmunity and early pregnancy loss.
Keywords: Autoimmunity; pregnancy loss; thyroid
