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A BLOOD GROUP SURVEY OF THE COUNTY AND CITY OF DUBLIN
Author(s) -
DAWSON G. W. P.,
HACKETT W. E. R.
Publication year - 1957
Publication title -
annals of human genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.537
H-Index - 77
eISSN - 1469-1809
pISSN - 0003-4800
DOI - 10.1111/j.1469-1809.1957.tb01925.x
Subject(s) - geography , demography , rural area , population , socioeconomics , rural population , medicine , sociology , pathology
S ummary1 The records of 9867 blood donors who were born in and are still resident in the county of Dublin were sorted into 223 groups according to the areas in which they live. 2 These groups were progressively summed until six groups, representing donors from the centre of the city, suburbs and rural areas, north and south of the river Liffey, were obtained. 3 At the summations within each of these six divisions, the areas showed no significant heterogeneity in the proportion of A + AB donors. The proportion of these donors was not the same in each of the six areas; it was highest in the rural areas, lowest in the city centre and intermediate in the suburbs. 4 No significant heterogeneity either within the six divisions or between these divisions appeared in the proportion of B+AB donors. 5 The proportion of Rh – donors showed some heterogeneity within the six divisions; a patchiness rather than a pattern. The proportion of these donors appears to be lowest in the rural areas, highest in the city centre and intermediate in the suburbs. 6 Possible interpretations of the data are discussed, including differential selection in rural and urban areas. The simplest interpretation is that prior to the arrival of the Anglo‐Norman settlers the population of County Dublin had a relatively low proportion of people of group A and a relatively high proportion of people who were Rh ‐. The descendants of these people are the main component of the population in the centre of the city. In the rural areas there is a significant proportion of descendants of Anglo‐Norman and later settlers, who had a relatively high proportion of group A and a relatively low proportion of Rh ‐. 7 In accord with this explanation it is noted that even within each of the six areas there is a tendency for the proportion of Rh ‐ to be lower among those of group A than among those of groups B and O .