At the initial examination of a prospective cohort study
initiated in 2012, diabetes was found in 20 per 1,000 men aged
40-60 yrs of age and in 20 per 1,000 women in the same age group.
After 7 years of follow-up of the study participants free of
diabetes at baseline, the incidence of diabetes was found to
be 4 per 1,000 in men and 5 per 1,000 in women in the study cohort.
Assuming no influence of other external or confounding factors, the
inference that in this age group men and women had an equal risk of
developing diabetes is:
A.
Incorrect because based on the data provided men have a higher
incidence of diabetes than women
B.
Incorrect because based on the data provided women are more
likely to develop diabetes than men
C.
Incorrect because there is no control or comparison group
D.
Correct