Some correlations of the behaviour of chemical abundance gradients with other physical properties of spiral galaxies are established. The sample is some 30 galaxies for which good published spectrophotometry of H ii regions is available. The central abundances of spirals are correlated with their mass, barred galaxies have shallow gradients, and non-barred spirals show a correlation of gradient slope with morphological type. The correlation of abundance with mass surface density is confirmed and there are indications that the effective yield may vary as a function of metallicity.
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Vila-Costas et al. (1992) studied this question.