cns {faraway}R Documentation

Malformations of the central nervous system

Description

Frequencies of various malformations of the central nervous system recorded on live births in South Wales, UK. Study was designed to determine the effect of water hardness on the incidence of such malformations.

Usage

data(cns)

Format

A data frame with 16 observations on the following 7 variables.

Area
a factor with levels Cardiff GlamorganC GlamorganE GlamorganW MonmouthOther MonmouthV Newport Swansea being areas of South Wales
NoCNS
count of births with no CNS problem
An
count of Anencephalus births
Sp
count of Spina Bifida births
Other
count of other CNS births
Water
water hardeness
Work
a factor with levels Manual NonManual being the type of work done by the parents

Source

C. Lowe and C. Roberts and S. Lloyd, (1971) Malformations of the central nervous system and softness of local water supplies, British Medical Journal, 15,357-361.

References

P. McCullagh and J. Nelder (1989), Generalized Linear Models, Chapman and Hall, 2nd Ed.


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