biostatistics

Question 1

compares a group of people with the disease with a group of people without disease

Answer 1

case-control study

Question 2

case-control study measures…

Answer 2

Odds ratio

Question 3

collects data form a group of people to assess frequency of disease

Answer 3

Cross-sectional study

Question 4

Cross-sectional study measures…

Answer 4

Prevalence

Question 5

Compares a group of people with a given exposure or irsk to a group without exposure

Answer 5

Cohor study

Question 6

Cohort study measures…

Answer 6

Relative risk

Question 7

NNT

Answer 7

1/ARR(absolute risk reduction)

Question 8

NNH

Answer 8

1/AR(Attributable risk)

Question 9

risk of developing disease in the exposed group divided bys risk in the unexposed group

Answer 9

Relative risk (used in cohort studies)
RR<1:PROTECTIVE
RR>1:Disease is more likeky in exposure
RR=1 (no differense)

Question 10

Mortality rate

Answer 10

probability of dying of a particular disease in the general population

Question 11

Case fatality rate CFR

Answer 11

Proportion fo people with a particular condition who end up dying from the conditon

Question 12

Asymmetry in funnel plot

Answer 12

suggest publication bias

Question 13

meta-analysis

Answer 13

it increases statistical power