78 OBSERVATIONS AND MEASUREMENTS ACADEMY MEMBERS 1Mem0 '^ 



Table 58. — Chest index ' 



National 

 XXIII, 



Members of the Academy 



Old Americans 



Not old Americans 



Old Americans 

 at large (labora- 

 tory series) 



Subjects 



Average 



Minimum 



Maximum 



Range of variation in percentage of the average 



<j 



CV 



92 



76. 28 ±0.36 



66.7 



90.2 



30. 81 



5. 10 ±0.25 



6. 67 ±0. 33 



49 



76. 46 ±0.55 



65.3 



89.5 



31.65 



5. 69 ±0. 39 



7. 43 ±0.51 



246 

 72.93 

 52. 82 

 88. 60 

 U-90 



DISTRIBUTION 



Old Americans (92) 



Not old Americans (49). 



65. 3-67. i 



Percent 

 3. 26 

 2. 04 



68-71.99 72-75.99 76-79.99 80-83. 



Percent 

 21.74 

 20. 40 



Percent 

 21. 74 

 30. 61 



Percent 

 26. 08 

 20.40 



Percent 

 21.74 

 16.32 



84-87. 99 88-90. 2 



Percent 

 4. 35 

 6. 12 



Percent 

 1. 09 

 4.08 



CHEST INDEX AND AOE 



Subjects to 60 years of age, inclusive 



Average 



a 



CV 



Over 60 years of age 



Average 



a 



CV 



Members of the Academy 



Old Americans 



55 



76. 04 ±0. 42 



4. 57±0. 29 



6. 01 ±0.39 



37 



77. 09 ±0.64 



5. 74 ±0. 45 



7. 45 ±0. 58 



Not old Americans 



22 



74. 94 ±0. 72 



5. 02±0. 51 



6. 67 ±0. 68 



27 



77. 39 ±0. 77 



5. 96 ±0. 55 



7. 67 ±0. 70 



Old Americans 

 at large (labora- 

 tory series) 



246 

 72.93 



i See the following equation: 

 DepthXlOO 

 Breadth 



