"Presumably, therefore those women who qualify for a legal abortion according to the terms of the statute should be able to obtain one, regardless of their race or socio-economic status. There is nothing demonstrable in the differences of skin color or economic condition which suggests that a substantially smaller proportion of the poor or the non-white fall into this category than that of the white and the non-poor, or that the poor and non-white have a substantially different moral attitude on abortion. On the contrary, a recent study of births occurring between 1960 and 1965 led investigators to conclude that one-third of Negro (as contrasted with one-fifth of white) births were unwanted. Unwanted births were in general more than twice as high for families with incomes of less than $3,000 as for those with incomes of over $10,000; this differential was "particularly marked among Negroes." The results indicated, in the view of the investigators, that there is a "coincidence of poverty and unwanted births rather than a propensity of the ‘poor’ to have unwanted children." One explanation for this high level of unwanted births among the poor and the non-white is surely the fact that they do not have equal access to abortions. Data demonstrate that the poor and the non-white do not receive this medical treatment on the same terms as do others. They thus suffer a particularly harsh and adverse effect from the operation of this statute, as they do from that of the other restrictive abortion laws which have existed and currently exist in the United States...."