The Incidence of Infantile Pyloric Stenosis in the North-East of Scotland

, in Gothenburg, found that pyloric stenosis occurred in four out of every 1,000 infants born alive, but in this country Davison (1946) in Newcastle found the incidence to be 2-8 per 1,000 live births, and Lawson (1951) in Dundee found it to be as low as 1-per 1,000 live births. Wallgren, Davison and Lawson all claim that their area was particularly suitable for the calculation of the incidence of the disease and that few cases can have been missed. MacMahon, Record and McKeown (1951) found the incidence in Birmingham increasing from 2 1 per 1,000 live births in 1941 to 4 2 in 1949.