Table 3:

Age wise distribution of workers

Age Group	% in Quarry Workers	% in Control Population
<20 Yr.	15.78	24.44
20–30 Yr.	42.51	26.67
30–40 Yr.	28.34	33.33
40–50 Yr.	10.43	8.89
>50 Yr.	2.94	6.67