84 



L. Rogers — Special Eeport on Fever in Dinajpur Bist, [Supplt. 

 Table V.— Age Incidence of the Principal Diseases. 



Year. 





I 



6 



I— 1 



i 



rH 

 1 



o 



1 



^ 

 i 



1 



I 



1 



o 



6 



© 

 > 

 o 



< 



Acute malaria 



21 



59 



21 



' 



7 



5 



3 



6 



3 



1 



133 



Chronio malaria 



2 



30 



20 



12 



11 



28 



23 



20 



11 



28 



185 



Pneumonia 



16 



34 



23 



19 



21 



21 



20 



19 



11 



33 



217 



Phthisis 





... 





4 



6 



21 



22 



20 



9 



8 



90 



Bronchitis 



... 



..: 



... 



... 



... 



... 



1 





2 



20 



23 



Diarrhoea 



41 



23 



4 



3 



2 



5 



6 



3 



2 



13 



102 



Dysentery 



8 



9 



5 



3 



2 



8 



10 



4 



6 



6 



61 



Enteric 



... 



1 



... 



4 



1 



5 



6 





1 



... 



18 



among adults were of a chronic nature, that is of a month or more in 

 duration. 



In the case of pneumonia it appears that nearly one-half of the 

 cases occurred in children under 16 years old, who are scarcely ever ad- 

 mitted to hospitals, while the next most common age is over 60, gene- 

 rally in the form of broncho-pneumonia. Phthisis, on the other hand, is 

 met with chiefly in young and middle-aged adults and bronchitis in old 

 people. 



Diarrhoea was by far the most common in infants under one year of 

 age, more especially in the hot weather months, and next in children 

 between one and five years of age, and in very old people, between 60 

 and 90 years. Dysentery was more evenly distributed, children and 

 middle-aged adults chiefly su:Eering. Enteric was most prevalent be- 

 tween the ages of 10 and 40, and was not frequently met with in young 

 children. 



The figures given in table II, showing the relative proportion of 

 deaths from different diseases in each circle, show a considerable de- 

 gree of uniformity, but the exact percentage of different diseases in any 

 one class will necessarily be dependent on those in the others. For ex- 

 ample, in the case of the Thakurgaon district in the extreme north pneu- 

 monia is particularly prevalent, leaving a smaller number of cases to be 

 distributed among the other causes of death. For this reason only 

 general deductions can be drawn from these figures such as the larger 

 proportion of cases of pneumonia and phthisis in the northern colder cir- 

 cles, as already pointed out. For the comparison of the degree of 



