Fertility and Pregnancy. An Epidemiologic Perspective By Allen J Wilcox

BMJ Allen J Wilcox , David Dunson and Donna Day Baird study cycle : day specific estimates from a prospective

Objectives To provide specific estimates of the likely occurrence of the six fertile days (the “fertile window”) during the menstrual cycle. Design Prospective cohort study. Participants 221 healthy women who were planning a pregnancy. Main outcome measures The timing of ovulation in 696 menstrual cycles, estimated using urinary metabolites of oestrogen and progesterone. Results The fertile win...

Wilcox Elected President of Society for Epidemiologic Research

GeneHub-GEPIS is a web application that performs digital expression analysis in human and mouse tissues based on an integrated gene database. Using aggregated expressed sequence tag (EST) library information and EST counts, the application calculates the normalized gene expression levels across a large panel of normal and tumor tissues, thus providing rapid expression profiling for a given gene...

Causation: An Epidemiologic Perspective (In Five Parts)

Diabetes: vascular or neurodegenerative: an epidemiologic perspective.

Type 2 diabetes and cognitive impairment are 2 of the most common chronic conditions found in persons 60 years and older. After that age, approximately 18% to 20% of older persons have diabetes,1 approximately 19% suffer from mild cognitive impairment in multiple domains,2 and approximately 6% of community-dwelling individuals have some dementia.3 The prevalence of mild cognitive impairment and...

Semen analysis from an epidemiologic perspective.

The fifth edition of the World Health Organization (WHO) manual for semen analysis includes for the first time reference values for human semen characteristics. This paper considers whether such values will help to resolve the intensely debated data indicating temporal and geographical shifts in sperm counts and hypotheses that anthropogenic activities that result in the release of chemicals in...