DOCUMENT SOURCE University of California at Berkeley The Bancron Library/The University Archives, Berkeley CA AECCADS SERIES TITLE Kenneth BANCACFTIUARC ID NO. Fepers cocden Sect SO £2 I CARTON NO. COPY —_ ! FOLSER NAME “Re mcinds (952 -/F43 NOTES | p37 /434 FOUND BY/DATE FOUND Katto ite lime mot /F9//2 (3 4% RED CELL AND BLOOD VOLUME IN HEALTHY MEN: C™ 200 T e . 18a be a by | | . 2 160- am a 3 - ~ ‘ | TOF . . ? 160+| a et oe. aot on ” we Fic. 2. ry + . o °° se . ° . = * * . oe _ O afaearocare @/1% CO wiwarocair 435% . 60 £09 os - | 159.50 ° . “ me 4 8 * a -— « eo . « T . . oo een enent 9 eae * : @# o bead Ca ~~ s estes oe be % e aee os s. *. ° ea ae sshamees @ z 2 . ., a 1071 ; >: 70st WHGHT IN 90 KILOGRAMS 4 Of BaiOw of asove 190 - 5 (aot: PPR 119 120 | - 7 Revation or Heicat anpWeicut To Hemarocnit Each subject is plotted according to height and weight as in Figure 1. The il men with the lowest hematocrits, 41.1 per cent or below and represented by A. appear. . mostly in the left upper area. The 10 men with the highest hematocrits, 49.5 per cent or above and represented by ©, appear mostly-m the right lower area. 7 oy , ee provided a meansof testing the influence on blood volume of factors other than weight and height when considered independently. The predicted Vrbe and Vpl of each subject were calculated, using Equations 3 and 7, Table If. Each sub. of subjects in the highest age age group— TABLE tl; Influence of age on Vrde and U'pt Age years Number of men 19-24 25-29 42 16 7 45-52 5 30-34 35-39 40-44 45 22 11 * Standard error. Residuals Vrbc _—_ Mean Ss. E.# mi. 18 15 4 10 44 238 Residuals Vol —<$—$— Mean Ss E ml mi. 28 41 57 -1i1 22 83 29 22 B5 if —§ 42 ml. at 27 35 51 72 105 ‘, C largest number of meg_were in theirsthird an (Tasha fore te fa Fo fourth decades; a few wereover 40. Comparison: of mean residuals withTHéif standard errors indicates that age haslittle-eftect, except on the Vrbe 2. Influence of factors other than height and weight as shown by analysis of “residuals” Analysis of the differences between the observed volumes in each subject and the average volumes for his height and weight, t.z., “restduals,” “Oo. A positive correlation was found between residu- 7 als for Vrbc and Vpl (r= +042). 2 ~ A) Age. Table II] shows the distributio ort ages and the mean residuals for Vrbeand ¥ptof the subjects within each five vear age group= fhe writer trom Pe Pare The regression plane for Vpl (Equation 7, Table II) is represented by the dotted contour lines. The contour lines for Vrbe are steeper than those for Vpl, indicating that Vrbc is relatively more dependent on weight than height, whereas the reverse is true of Vol. Although the differences are small, the hematocrits of short, heavy men tend to be slightly higher than those of tall, thin men. as shown in Figure 2. volumes. reporter va corner of the chart. ject’s residual Vrbe and Vpl were then fonnd by _ subtracting“his predicted from hrs vobserved ~ ByAc oo Sap according to his height and weight. The location oi the regression plane for Vrbe in relation to combined height and weight (Equation 3. Table II) is represented by the solid contour lines progressing from the leit lower to the mght upper