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

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.