Age-standardized dizygotic twinning rates correlate positively and significantly with latitude.
Usage
data(Dizytwin)
Arguments
Format
A data frame with 19 observations on the following two variables.
Latitude
Geographical latitude in Europe.
DZT_Rate
Dizygotic twinning rates across the countries.
Details
In Europe, both mean birth weight and age-standardized dizygotic twinning rates correlate positively and significantly with latitude. It seems possible that these two sorts of correlation have explanations in common via pituitary action.