In this study, we aimed to evaluate site-specific cancer risks associated with hyperthyroidism
or hypothyroidism. We performed a systematic review of observational studies reporting …

Background: It has been hypothesized that thyroid function may influence cancer risk, but
few studies with adequate statistical power have investigated this question, and the results …

Thyroid hormones regulate the rate of metabolism and affect the differentiation and growth of
many tissues in the body. We investigated the association between hyperthyroidism and …

Purpose To investigate the relationship between hypothyroidism, hyperthyroidism, thyroid
hormone replacement, and the risk of breast cancer. Methods We searched the PubMed …

The objective of this study was to determine whether thyroid disorders or treatment of such
disorders affects the risk of breast cancer. Subjects aged 35–64 years were participants in …

Objective: To obtain more precise estimates of the association between thyroid cancer and
benign thyroid diseases and to elucidate the role of potential confounders or effect modifiers …

Context Various risk factors have been associated with the risk of thyroid cancer in
observational studies. However, the causality of the risk factors is not clear given the …

Background This study investigated the relationship between thyroid diseases and the risk
of breast cancer (BC). Clarifying this issue can help medical staff perform of early prevention …

Background: The effects of thyroid-stimulating hormone (TSH) and thyroid hormones on the
development of human papillary thyroid cancer (PTC) remain poorly understood. Methods …

Many studies have investigated the association between hormonal and reproductive factors
and thyroid cancer risk but provided contradictory and inconclusive findings. This review …