systolic pressure was under 140, while in the remaining 48 percent
it ranged from 145 to 200 mm.


BLOOD PRESSURE IN CHILDREN

May Michael, [Footnote: Michael, May: A Study of Blood Pressure in
Normal Children, Am. Jour. Dis. Child., April, 1911, p. 272.] after
a study of the blood pressure in 350 children, came to the
conclusion that the blood pressure in children increases with age
principally because of the increase in height and weight, as she
found that children of the same age but of different weights and
heights had different blood pressures. Sex in children makes no
difference in the blood pressure, it being determined by the height
and weight.

Judson and Nicholson [Footnote: Judson, C. F., and Nicholson,
Percival: Blood Pressure in Normal Children, Am. Jour. Dis. Child.,
October, 1914, p. 257.] made 2,300 observations in children of from
3 to 15 years of age, and found there was a gradual increase in the
systolic blood pressure from 3 to 10 years, and a more rapid rise
from 10 to 14, with a rapid elevation during the fourteenth year, or
the age of puberty. The systolic pressure varied from 91 mm. in the
fourth year to 105.5 in the fourteenth year, while the diastolic
pressure remained almost at a uniform level. The pressure pulse,
therefore, increased progressively with the increase of the systolic
pressure.


BLOOD PRESSURE AND INSURANCE