Question: Define the following: (a) Observational study (b) Risk factor (c) Outcome (d) Retrospective study (e) Prospective study (f) Relative risk (g) Odds (h) Odds ratio

Define the following:

(a) Observational study

(b) Risk factor

(c) Outcome

(d) Retrospective study

(e) Prospective study

(f) Relative risk

(g) Odds (h) Odds ratio

(i) Confounding variable

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