Question

cement factory has 150 un-skilled. the workers were exposed to praticular matter (PM) from the surrounding dusty environment. according to the regular checkup record 60 workers develop chronic asthma. as a result, the managment carried full investigation to decide over the main causes behind this phenomenon. A control group of individual with smoking histories similar to the exposed workers who were unlikely to have encountered the same symptoms had 70 with chronic asthma and 50 who did not develop chronic asthma. calculate the risk associated with the two samples.

Answer 1

Risk analysis can be assessed by 2 factors.

1) Risk ratio

2) Percent relative effect