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This report covers the period 1925-1937. It follows a similar report entitled Blood Pressure, which appeared in 1925. A classification of the data is followed by tables of correlations between expected deaths and recorded illness. The customary correlation between high blood pressure and most illnesses is noted. Suicide, however, shows a reverse correlation. It is persons with low blood pressure who commit suicide most frequently. This is stated to be new and is worthy of more detailed report as follows: It was found that fairly high systolic pressure (143 to 177) with low diastolic (54 to 83) give the lowest suicide ratio, i. e. 75 per cent of the expected rate. Evidently a fairly high blood pressure is good for something. It is best in this regard when the diastolic pressure is low. This association of low systolic pressures with increased suicide rates increases with the rise of the diastolic
Blood Pressure Study, 1939. JAMA. 1941;116(17):1991–1992. doi:10.1001/jama.1941.02820170109028