A study on the relationship between vertex baldness and heart attacks in men reported that "For any vertex baldness [compared with no baldness], the age-adjusted relative risk [of heart attack] was 1.4 (95% CI, 1.2 to 1.9)." Based on this, it can reasonably (with 95% confidence) be concluded that
A) men with any baldness are between 1.2 and 1.9 times more likely to have a heart attack than men of the same age with no baldness.
B) men with no baldness are between 1.2 and 1.9 times more likely to have a heart attack than men of the same age with any baldness.
C) the percent of men with any baldness likely to have a heart attack is between 1.2% and 1.9%.
D) the risk of having a heart attack for men with no baldness is not significantly different from the risk of having a heart attack for men with any baldness.

Question

Quizplus · Accepted Answer

The relative risk of 1.4 with a 95% confidence interval of 1.2 to 1.9 indicates that men with any degree of vertex baldness are more likely to have a heart attack compared to men with no baldness, by a factor of between 1.2 and 1.9 times, when age is accounted for.

A Study on the Relationship Between Vertex Baldness and Heart