Season of birth influences the timing of first menstruation.

Objectives: The purpose of this study was to determine whether the month of birth influences the maturation rate of Polish females from two birth cohorts, namely 1982-1984 and 1992-1994. It was also verified whether socioeconomic status (SES) is capable of altering the above relationship.

Methods: The research material consisted of data collected in two cross-sectional surveys.

[THE PREVALENCE AND CORRELATES OF MENSTRUAL PAIN IN HEALTHY UNIVERSITY STUDENTS].

Introduction: Menstrual disorders generally affect the daily activities of females, and menstrual pain is a common gynaecological complaint in westernized societies. The aim of the study was to determine the prevalence of, and the factors related to, menstrual pain in young, healthy women.

Material And Methods: Data from 600 university students were obtained during the cross sectional survey.