Macaronesia, Analysis, Physiological aspects, Humans, Hypertension, case-control study, Polymorphism, Genetic, Multivariate Analysis, Madeira, Risk Factors, Female, Male, European Continental Ancestry Group - genetics, Genetic research, Portugal - ethnology, Genes, Genetic aspects, Adult, Middle Aged, 3400, Abridged Index Medicus, ADD1 Gly460Trp gene polymor...