Background: Our aim was to determine the association between age at menarche (AAM)
and breast cancer adjusted for recall bias (misclassification) in AAM. Methods: We have …

Background Observational studies have shown an association between age at menarche
(AAM) and the risk of gynecological diseases. However, the causality cannot be determined …

Abstract Context: Various studies in Iran on the role of menopause and age at menarche in
breast cancer reported different results. Objectives: The current study aimed to estimate the …

Background and objective: Breast cancer is one of the most prevalent malignancies among
Indonesian women. Numerous risk factors can increase the likelihood of developing breast …

Background: Breast cancer is responsible for up to 25% of all cancers in Iran. The age at
diagnosis of Iranian breast cancer patients starts a decade earlier than most of developed …

Target We executed a Mendelian randomization (MR) investigation employing two distinct
cohorts of genetic instrumental variables to elucidate the causal nexus between age at …

The role of age at menarche and at menopause on breast cancer risk was reassessed in a
combined analysis of four Italian case-control studies including a total of 6,075 cases and …

Early age at menarche is a known risk factor for breast cancer, some inconsistency in the
literature not withstanding. Relative risks for an early menarcheal onset as compared to a …

Breast cancer represents 27% of the cancers and 19% of the cancer deaths in female
population. The aim of this study was to document the age pattern of the incidence of breast …

Background: This study analyzed the age of menarche in different regions of Iran with a
review of previous studies and examined the changes of menarche age over the past years …