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MATERNAL AGE AT BIRTH DELIVERY, BIRTH ORDER AND SECONDARY SEX RATIO IN THE OLD ORDER AMISH OF LANCASTER COUNTY
Maternal Age at Delivery Birth Order Secondary Sex Ratio
2014/11/6
The observation that more boys were born than girls was noted in the late 1660’s. Recent studies suggest the secondary sex ratio (SSR) is declining in industrialized countries. SSR is proposed as a se...
Seasonal Variation of Suicide Rates within Alaska: Associations of Age and Sex
Epidemiology Public Health Suicide Alaskan Native Seasonal Variation Vitamin D
2014/11/6
Background: Suicide rates among Alaska Natives in rural Alaska are almost 16 times higher than the national average. Some studies in northern latitudes have shown seasonal variation among suicide rate...