Study designs - cross-section - correct answer ✔✔Risk factor and outcome measured at the same time
Study designs - retrospective (case control) - correct answer ✔✔Subjects divided by outcome, then
retrospectively assessing frequency of risk factors
Study designs - prospective (cohort) - correct answer ✔✔Subjects divided by risk factor, then
prospectively followed for outcome
Study designs - randomized controlled trial - correct answer ✔✔Subjective randomly divided and one
group receives intervention
Positive likelihood ratio (LR+) - correct answer ✔✔Sensitivity/(1-Specificity)
Negative likelihood ratio (LR-) - correct answer ✔✔(1-Sensitivity)/Specificity
Vaccines - needed every pregnancy - correct answer ✔✔Tdap and influenza
Vaccines - MMR not indicated for adults born before ___ - correct answer ✔✔1957
Vaccines - pneumococcal vaccines (PCV13 and PPSV23) indicated in these groups - correct answer
✔✔Immunocompetent age >65
Functional or anatomic asplenia
Immunocompromised
CSF leaks or cochlear implants
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