Whether children, especially girls, are entering and progressing through puberty earlier today than in the mid-1900s has been debated. Secular trend analysis, based on available data, is limited by data comparability among studies in different populations, in different periods of time, and using different methods. As a result, conclusions from data comparisons have not been consistent. An exper...

BACKGROUND Menopause is an important milestone of a woman's reproductive life. There is limited data on the secular trend of menopausal age. The purpose of this study is to identify the secular trend of menopausal age and its related factors among Tehrani women born during 1930 - 1960. METHODS A total number of 2266 women, born between 1930 and 1960, were recruited among TLGS participants. Th...

Background: The phenotypic plasticity in growth pattern that takes place over time is described as “secular trend”. presence of secular changes evidences shifts the environmental conditions under which a population lives. In this regard, study residing northeast Argentine Patagonia interesting because it underwent rapid demographic and urban sprawl last 50 years.
 Objective: To compare hei...

Objective: Gestational Diabetes Mellitus (GDM) is an important condition in diabetes categories causing significant complications including pre-eclampsia and eclampsia among pregnant women. The aim of this study was to estimate the trend of annual GDM incidence and its risk factors in Yazd province, Iran, from 2008 to 2013. Materials and Methods: The present study was conducted as a prospectiv...

Age at menarche of 366 Maharashtrian Brahmin, Maratha and Scheduled Caste girls was studied and two hypotheses relating menarcheal age to physical growth were compared. Results indicated that both measurements, the height (the indicator of skeletal maturity), and the weight (the indicator of fat accumulation), were positively correlated with age at menarche. The well known phenomena of children...

AIM To describe the epidemiology of congenital anomalies in Glasgow with special reference to secular trends. METHODS The prevalence of congenital anomalies was determined retrospectively in 233 777 births using the Glasgow Register of Congenital Anomalies for the period 1980-97. RESULTS The total prevalence of congenital anomalies was 324 per 10 000 births, declining by just over a third f...

OBJECTIVE To check whether secular changes exist in growth pattern of caucasic children from the North of Spain up to 2 years of age compared with 25-30 years ago population growth curves. MATERIAL AND METHODS Longitudinal study of a representative cohort of caucasic infants born a term in Aragon (n=1.099). Standard deviation scores (z-scores) for weight, length and body mass index (BMI) have...