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Triangle plots of three‐level explanatory variables
Author(s) -
Alexander Neal
Publication year - 2004
Publication title -
significance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.123
H-Index - 21
eISSN - 1740-9713
pISSN - 1740-9705
DOI - 10.1111/j.1740-9713.2004.00049.x
Subject(s) - new guinea , malaria , genealogy , statistician , plot (graphics) , demography , geography , medicine , statistics , history , mathematics , ethnology , sociology , immunology
Thalassaemias are genetic blood disorders which cause varying degrees of anaemia. Their geographical distribution suggests a compensating protection against malaria, which kills between 0.5 and 2.5 million people per year in developing countries. Neal Alexander describes a study in Papua New Guinea which estimated this association more directly, and a triangle plot which clarified, for himself and his non‐statistician colleagues, the relative risks of malaria for those with none, one or two copies of the relevant haemoglobin mutation.