[331] _Special Reports, Bureau of the Census_, 1904, "Insane and Feebleminded in Hospitals and Institutions," 20.
The statistics for the insane in hospitals at the end of 1903 and of those admitted during 1904, as given by Mr. Koren, show a strikingly high percentage of insane persons of foreign parentage in Wisconsin, Minnesota, North Dakota, and Iowa. No other State comes within ten per-cent of the ratio of the first three. Of those enumerated in December, 1903, 56% in Wisconsin, 48% in Minnesota, 52% in North Dakota, and 34% in Iowa, were of foreign parentage; the percentages of the admissions for 1904 were 53% in Wisconsin, 55% in Minnesota, and 33% in Iowa.[333] In all these States the Scandinavian element has been numerous for at least two generations. Figures gathered for this study for the period between 1885 and 1895, before the children of the Scandinavian immigrants reached in very considerable numbers what might be termed the age for acquiring insanity, gave similarly significant conclusions. Of the inmates of the state hospitals for the insane in Minnesota, the foreign-born Scandinavians were 28% in 1886 and 30.7% in 1890; of the admissions to the state hospital at St. Peter in 1890, 35% were Norse. Of the total admissions for the State in 1900, 23% were Scandinavians, while in the Fergus Falls hospital, located in the heart of a more recently settled Scandinavian area, 40% were of that nationality; Wisconsin reports show like percentages.[334] All of these statistics warrant the general conclusion that of all the foreign-born, the Scandinavians are the most prone to insanity.[335]
[333] _Special Reports, Bureau of the Census_, "Insane and Feebleminded," 21.
[334] _Minnesota Executive Documents, 1900_--statistics for the insane for 1890, 1896, and 1900; The North, Dec. 18, 1889; _Wisconsin State Board of Control_ [biennial], 1890 to 1902.
[335] _Special Reports, Bureau of the Census, 1904_, "Insane, etc., in Hospitals," 21. Nelson, _History of the Scandinavians_, II, ch. i, makes a conscientious, but rather lame, attempt at analyzing available statistics of insanity, and gives his conclusions for two periods, 1881-2 and 1890-4: ratio of insane in total population, 1:2718 and 1:1719; in American-born, 1:4120 and 1:3009; in foreign-born, 1:1480 and 1:1144; in Irish, 1:1061 and 1:769; in German, 1:1461 and 1:1439; in Scandinavian, 1:1588 and 1:819.