Which criterion for causal inference is BEST represented by

Which criterion for causal inference is BEST represented by the following scenario?

A matched case-control study found that the estimated risk ratio for endometrial carcinoma associated with the use of conjugated estrogens was 7.6.

Strength

Consistency

Temporality

Is the following risk factor and health outcome, a necessary cause, sufficient cause, or component cause.

Risk Factor:  Plasmodium

Health Outcome: Malaria

Component Cause

Sufficient Cause

Necessary Cause

None of the Above

Solution

7.6 strength

and

Risk Factor:  Plasmodium

Health Outcome: Malaria

D) none of the above

because it is cused by protozones