Question

The mortality rate from disease X in city A is 75/100,000 in persons 65 to 69 years old. The mortality rate from the same disease in city B is 150/100,000in persons 65-69 years old. The inference that disease X is two times more prevalent in persons 65 to 69 years old in city B than it is in persons 65-69 years old in city A is: Correct Incorrect, because of failure to distinguish between prevalence and mortality Incorrect, because of failure to adjust for differences in age distributions Incorrect, because of failure to distinguish between period and point prevalence Incorrect, because a proportion is used when a rate is required to support the inference

Answer 1

Solution :

1)The proportion of the quantity of deaths in a populace is known as the mortality rate.Fetal mortality rate,infant mortality rate,maternal mortality are a few instances of mortality rate.The mortality which results from a particular reason during a predefined period in a populace is known as the reason explicit mortality.The cause explicit death rate can be determined from the accompanying recipe :

Cause explicit death rate = No.of deaths from indicated cause / complete population

From the given information pervasiveness can't be determined as the no.of instances of the malady isn't given yet the information indicates the death rate that the quantity of deaths because of that disease.Therefore,it is wrong as it can't be induced that illness x is multiple times common in city B.

Hence,the choice a is incorrect.

2)Age alteration is characterized as a factual procedure connected to paces of disease,death,injury,or wellbeing results which permits the examination of networks with various ages.The death rate isn't related with the age adjustments,it is only the proportion of no.of deaths brought about by a disease.The age modification isn't required for the derivation however prevalence is needed for the deduction of the given statement.

Hence,the choice c is incorrect.

3)Period commonness is the no.of instances of that disease over a given time of time.It is communicated in level of population. Point pervasiveness depicts the proportion of the infection at a specific time.The given information does not portray the point and intermittent commonness it depicts just the death rate in a populace.

Henceforth the choice d is incorrect

4)Prevalence can be determined as proportion.It is the correlation of individuals with ailing condition to the all out population.The rate isn't required for the count for the predominance.

Henceforth the choice e is incorrect..

5)Prevalence is characterized as the no.of influenced people present in a populace at a particular time profit by the quantity of people in the populace at the time.A predominance study recognizes the all out no.of people of determined ailment in a characterizes populace at a given purpose of time.It can be determined by utilizing the accompanying recipe :

Predominance per 1000 = (No.of instances of an ailment present in the populace at a predetermined time/No.of people in the populace at the predefined time ) * 100

From the given information ;

The death pace of city A from the sickness x = 75/100000

The death pace of city A from the sickness x = 150/100000

In this manner the no.of deaths is given as 75 for city An and 150 for city B,with an all out populace of 100,000 around then.

From this the death rate and pervasiveness can't be recognized as it doesnot notice a specific period and the information indicates just the death pace of the specific illness it doesnot demonstrate the no.of instances of that infection.

Therefore,prevalence can't be determined.

Henceforth the right answer is choice B