Question

Question is based on the information given below: Annual Cancer Death in White Male Workers in Two Industries Industry A Industry B No. of Deaths % of All Cancer Deaths No. of Deaths % of All Cancer Deaths Respiratory system 180 33 248 45 Digestive system 160 29 160 29 Genitourinary 80 15 82 15 All other sites 130 23 60 11 Total 550 100 550 100 Based on the preceding information, it was concluded that workers in industry B are at higher risk of death from respiratory system cancer than workers in industry A. (Assume that the age distributions of the workers in the two industries are nearly identical.) 1. Which of the following statements is true? The conclusion reached in correct The conclusion reached may be incorrect because proportionate mortality rates were used when age-specific mortality rates were needed The conclusion reached may be incorrect because there was no comparison group The conclusion reach may be incorrect because proportionate mortality was used when cause-specific mortality rates were needed. None of the above

Answer 1

Answer:

Here the proportionate death rate is a deceptive rate and is commonly not thought about a standard.

Since it is an extent, it has no populace denominator.

The rate additionally has a disadvantage that it has neither an occurrence nor a predominance rate incorporated into it.

The given information mulled over just proportionality death rates which can't be utilized to make measurable investigation exactly.

So option (a) is mistaken.

Age explicit death rate is limited to a specific age gathering.

It doesn't contemplate the general demise rates because of a particular reason.

Rater it considers death paces of just a particular age gathering.

So choice b is incorrect.

The above information thinks about the number and percent of death because of the various malignancies between laborers in two enterprises.

So the announcement isn't substantial.

Alternative c is incorrect.

Presently alternative d precisely indicates the defect in the above investigation, so choice e can't be right.

option e is not correct.

Cause explicit mortality mulls over the passings because of a particular reason.

It is commonly determined against a populace size of 1000. The count of this rate is institutionalized to a control populace and henceforth gives the exact data on the death rate.

In this way to evaluate the death rate with no mistakes, cause explicit death rates should be determined instead of utilizing proportionate death rate.

So consequently,

choice d is correct answer.