Malformations of Central Nervous System and Softness of Local Water Supplies
- 15 May 1971
- Vol. 2 (5758), 357-361
- https://doi.org/10.1136/bmj.2.5758.357
Abstract
The mean annual prevalence at birth of congenital malformations of the central nervous system for the three years 1964-6 in 48 local authority areas in South Wales was negatively correlated (r = -0·402, P0·05) and calcium content (r = -0·289, P<0·05) of the related water supplies. It is concluded that the relationship between these associations may well be secondary. Analytical epidemiological studies of the association are called for.Keywords
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