bop ee wv oy IVE PL IwiU Vos PRIVACY ACT MATERIAL REMOVED 40 Table 21 Protein Bound Iodine, 1963 and !964 ; I |{ REGRESSION LINES 5}rs Bv'l O90 TBA + oi I Subject No. SIR| {oc e-o sara raw + 708 / Bar | ota?. moore {3° 1 It 1S "Bae Bove O5296 “Sa + ° —- . 4 MARSHALLESE RESIDING ON RONGELAP 1 6 10 14 86 17 21 69 865 SIRI “4 VOLUME liters F MOORE PBI, ¥ % 9.4 79 12.0 8.2 8.2 6.8 8.1 10.2 8.2 Av 8.8 MAaRSHALLESE RESIDING ON EBEYE REO CELL YOLUME 9 whee Le 20 30 TOTAL BOOY 40 ob 50 WATER - liters Figure 52. After 4 hours, urine samples were collected and 12 829 944 938 982 950 1005 1043 8.8 “71 2.0 5.6 6.3 6.7 7.9 5.8 Av 6.3 AMERICANS RESIDING IN MARSHALL ISLANDS AT Least | YEAR 6.2 3.3 3.0 5.6 6.1 3.3 4.4 lyophilized, and tritium in the water portion was counted in a Nuclear-Chicagoliquid scintillation counter. From these values of total body water, fat was estimated by the formula % fat =100 —(% TBW/0.72). The % TBW is total body water (in kg) as percent of gross weight. Lean body mass (LBM) was taken as the difference between gross weight and fat (kg). The data are shown in Table 20. According to Av Mepicac TEAM 4.7 4.7 5.1 3.5 3.2 2.5 6.0 a) 4,2 6.9 Siri (personal communication) the valuesfor total body water, fat, or lean body mass are not different from averages for Caucasian subjects in the San Francisco area. Figure 52 showsthe values of blood volume(liters} and red cell volume (liters) plotted against total body water. Regression lines drawn for Caucasians by Moore'’ and Siri (un- published) disclose that with the exception of one case the values of Marshallese fall far below those described by the authors. The average red cell volume for Marshallese is 28.3 ml per kg LBM as 5.5 Av 4.9 tions of blood volume and total body water in compared to 35 ml/kg (Siri, unpublished). Caucasiansliving in this area for one year or more. ference or are the result of environment and/or Other Laboratory Studies studies will be continued in 1965 with examina- tion of smears from peripheral blood culturesis in Whether these findings represent a genetic dif- a) ta -4 Cc cs cn diet cannot bestated at present. It is hoped that Chromosome Studies. Microscopic examina- PRIVACY ACT MATERIAL REMOVED