DPS- studies question and answers graded A+

DPS- studies AAAA framework - correct answer Assess, Access, appraise, act Hierarchy of evidence - correct answer Observational study - correct answer o Risk factor/intervention in question occurred outside investigator's control o Observing the consequences of a natural experiment Interventional/experimental - correct answer o Risk factor/intervention is deliberately introduced and is within investigator's control o Rarely if ever ethical where a known harmful risk factor is involved Case report - correct answer A detailed report of an unusual disease in a single patient Case series - correct answer A detailed report of an unusual condition in several patients Provide an important interface between epidemiology and clinical medicine Cross-sectional - correct answer A study in which info is collected in a planned way in a defined population at one point in time. Observational. Frequency of a particular behaviour or opinion. Ecological - correct answer Uses data from population groups to compare disease frequencies In same population at different times OR between populations at same time 1 disease