XI. B, 3 Concepcion and Bulatao: Blood Pressure of Filipinos 147 



systolic, 76.8 millimeters diastolic, 30.8 millimeters pulse pres- 

 sure, and 79.7 pulse rate per minute. 



It is also surprising to find that four cases of an average age 

 of 44 years who had taken the drug for twenty or more years 

 showed an average of 97.8 millimeters of mercury systolic pres- 

 sure, 71 millimeters diastolic, and 25.9 millimeters pulse pres- 





1 



/toS 



Length of addiction in years. 

 StolO 10 to 20 



Z0 + 







Systolic pre 



ssure 







no 



<>-. 





O^ 





\ 



105 





^ 'ty- ■■"^- 







\ 

 \ 



100 











\ 



3 

 1 



O 





Diastolic pr 









u so 



■8 

 S 



1 75 





• 









o— ■ 









■^. ■ ■ ■- 



3S 





Pulie prei- 



ure 







Ov. 



V 







V 



■30 









y' 



X3 



Fig. 2. Blood-pressure pictures of opium and morphine addicts arranged according to 

 length of time the drug has been taken. 



sure. If we compare these results with our normal cases, we 

 find that between 41 and 50 years we have an average of 126.6 

 millimeters systolic, 87.1 millimeters diastolic, and 39.5 milli- 

 meters pulse pressure. These findings, then, appear to be con- 

 trary to the finding of Pettey. While the systolic pressure 

 increases with age in normal individuals, morphine and opium 

 addicts may have a very low blood pressure as the results of the 

 long-continued use of the drug (fig. 2). 



