Nbme Cbse Public Health Science Exams With Actual Correct Questions And Verified Detailed Answers Latest 2024

1 | P a g e NBME CBSE PUBLIC HEALTH SCIENCE EXAMS WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS LATEST 2024 (NEWEST) ALREADY GRADED A+ What is prevalence? Number of existing cases divided by the number of people in the population What is the formula for calculating prevalence? Prevalence = incidence rate * average duration of disease / (1 - prevalence) What happens to prevalence with an increase in prevalence? Increase in positive predictive value (PPV) and decrease in negative predictive value (NPV) What happens to incidence and prevalence with increased survival time? No incidence and high prevalence What happens to incidence and prevalence with high mortality? No incidence and low prevalence What happens to incidence and prevalence with faster recovery time? No incidence and low prevalence What is extensive vaccine administration? Low incidence and prevalence What are low risk factors? Low incidence and prevalence What is high diagnostic sensitivity? High incidence and prevalence What happens when a new effective treatment is started? No incidence and low prevalence2 | P a g e What is low contact between infected and non-infected patients with airborne infectious disease? Low incidence and prevalence What is selection bias? Nonrandom sampling or treatment allocation