NUR-MED BIOSTATS PREDICTOR
UPDATED EXAM QUESTIONS AND
ANSWERS 100% A+ GRADED
which one of the following can be used for data analysis in Cross sectional?
1. Odds ratio
2. Relative risk
3. Chi square test ***
4. Attributable risk and Chi square test
5. odds ratio and attributable risk
cross sectional: use CHI SQUARE
Cohort: use RR or AR
Case control: use ODD's RATIO
Which is the best study to find out the state of Vitamin D deficiency in Australia?
a..cohort
b..case control
c..case study
d..Cross-‐sectional study.***
For Prevalance Cross Sectional Study ..... to check incidence Cohort .... So D here
Two groups are being studied for risk reduction for some disease with aspirin use. Tables are given as
follows.
Aspirin used aspirin not used
Got disease 10 20
Disease free 990 980
Calculate NNT for this?
a. 10
b. 100 ***
c. 1000
its incidance 10 among 1000 population right so inverse of it is 1000/10=100\
The question says 10 got disease amongst 1000 people who used aspirin and 20 amongst
those who did not use it so take the total number which is 1000/ 10 = 100 is ur ans.
In a village of 3000 people, 500 get Congo Hemorrhagic fever. 450 eventually
recover from the disease in the next 4 weeks while 50 died. What is the case
,NUR-MED BIOSTATS PREDICTOR
UPDATED EXAM QUESTIONS AND
ANSWERS 100% A+ GRADED
fatility rate for this disease?
1. 10 ***
2. 20
3. 35
4. 50
5. 200
Case fatality rate = # of deaths from a specific cause / total number of cases with same
disease...
= 10 (A)
You are a doctor in a town ,where 6people out of 100 are non smoker.What are
the
chances of stroke.the chances of stroke in smoker is 50%more than non
smoker .Now
the pharmaceutical company is introducing a medicine which reduces the
chances of
stroke upto 1/3rd in smoker population .What is the percentage of the stroke
population
will get stroke
a)3%
b)6% ***
c)9%
d)12%
e)20%
6/100 = 6%, 6*1.5 = 9 , 1/3rd reduced so 9/3 = 3, => 9-3 = 6%
9/3 is to calculate reduction which is 1/3 so 9/3. Final level is if you
substract the 1/3 reduction from the 50% increased incidence that will give you final
incidence or
prevalence whatever is asked in the stem.
just take it as in general population this risk is 6/100 ... for smokers it turns to be 9/100
as gnrl population has 50% less thn smokers... so in smokers risk is reduced to one
third ... so we ll take 1/3rd of 9 which ll be 3 nd subtarct it from orignal risk of 9 in
smokers nd v ll be left wid 6
, NUR-MED BIOSTATS PREDICTOR
UPDATED EXAM QUESTIONS AND
ANSWERS 100% A+ GRADED
In a small village of North QLD with a community of 3000 people,
18%females get URTI while 22% males get it as well who are exposed to
factory smoke. 10% of females also get URTI who live away from the
factory and are not exposed to factory smoke. The data for males is not
available. Calculate the attributable risk for females to get URTI due to
factory smoke?
1. 28%
2. 30%
3. 6%
4. 1.8%
5. 8% ***
ARR =risk in exposed Group - risk in Unexposed group So 18 - 10 = 8%
A study wish to make a relation btw the fatigue in track car driver in high ways &
the incidence of MVA happen. wt is the most suitable method to carry out study?
a, cohort
b, case control ***
c, RCT
D,cross sectional
E,case study
least imp study to look for effectiveness of ccf Rx?
a,case control
b, case series ***
c, cohort
d,RCT
e, Systemic Review
What is the best method of study for studying the relation between fatigue
and accident in truck driver?
a. RCT
b. Cohort
c. A retrospective case-control study ***
d. Case report
e. systemic review
UPDATED EXAM QUESTIONS AND
ANSWERS 100% A+ GRADED
which one of the following can be used for data analysis in Cross sectional?
1. Odds ratio
2. Relative risk
3. Chi square test ***
4. Attributable risk and Chi square test
5. odds ratio and attributable risk
cross sectional: use CHI SQUARE
Cohort: use RR or AR
Case control: use ODD's RATIO
Which is the best study to find out the state of Vitamin D deficiency in Australia?
a..cohort
b..case control
c..case study
d..Cross-‐sectional study.***
For Prevalance Cross Sectional Study ..... to check incidence Cohort .... So D here
Two groups are being studied for risk reduction for some disease with aspirin use. Tables are given as
follows.
Aspirin used aspirin not used
Got disease 10 20
Disease free 990 980
Calculate NNT for this?
a. 10
b. 100 ***
c. 1000
its incidance 10 among 1000 population right so inverse of it is 1000/10=100\
The question says 10 got disease amongst 1000 people who used aspirin and 20 amongst
those who did not use it so take the total number which is 1000/ 10 = 100 is ur ans.
In a village of 3000 people, 500 get Congo Hemorrhagic fever. 450 eventually
recover from the disease in the next 4 weeks while 50 died. What is the case
,NUR-MED BIOSTATS PREDICTOR
UPDATED EXAM QUESTIONS AND
ANSWERS 100% A+ GRADED
fatility rate for this disease?
1. 10 ***
2. 20
3. 35
4. 50
5. 200
Case fatality rate = # of deaths from a specific cause / total number of cases with same
disease...
= 10 (A)
You are a doctor in a town ,where 6people out of 100 are non smoker.What are
the
chances of stroke.the chances of stroke in smoker is 50%more than non
smoker .Now
the pharmaceutical company is introducing a medicine which reduces the
chances of
stroke upto 1/3rd in smoker population .What is the percentage of the stroke
population
will get stroke
a)3%
b)6% ***
c)9%
d)12%
e)20%
6/100 = 6%, 6*1.5 = 9 , 1/3rd reduced so 9/3 = 3, => 9-3 = 6%
9/3 is to calculate reduction which is 1/3 so 9/3. Final level is if you
substract the 1/3 reduction from the 50% increased incidence that will give you final
incidence or
prevalence whatever is asked in the stem.
just take it as in general population this risk is 6/100 ... for smokers it turns to be 9/100
as gnrl population has 50% less thn smokers... so in smokers risk is reduced to one
third ... so we ll take 1/3rd of 9 which ll be 3 nd subtarct it from orignal risk of 9 in
smokers nd v ll be left wid 6
, NUR-MED BIOSTATS PREDICTOR
UPDATED EXAM QUESTIONS AND
ANSWERS 100% A+ GRADED
In a small village of North QLD with a community of 3000 people,
18%females get URTI while 22% males get it as well who are exposed to
factory smoke. 10% of females also get URTI who live away from the
factory and are not exposed to factory smoke. The data for males is not
available. Calculate the attributable risk for females to get URTI due to
factory smoke?
1. 28%
2. 30%
3. 6%
4. 1.8%
5. 8% ***
ARR =risk in exposed Group - risk in Unexposed group So 18 - 10 = 8%
A study wish to make a relation btw the fatigue in track car driver in high ways &
the incidence of MVA happen. wt is the most suitable method to carry out study?
a, cohort
b, case control ***
c, RCT
D,cross sectional
E,case study
least imp study to look for effectiveness of ccf Rx?
a,case control
b, case series ***
c, cohort
d,RCT
e, Systemic Review
What is the best method of study for studying the relation between fatigue
and accident in truck driver?
a. RCT
b. Cohort
c. A retrospective case-control study ***
d. Case report
e. systemic review
