In 2013, you are working with a leading medical facility in Philadelphia and have been asked to find out the need to develop a special ambulatory facility (e.g., an afternoon clinic) to manage hypertension among the catchment population (i.e., community served by the hospital).  Which of the following measures would you use to plan the resources needed for the facility?  Assume that necessary data are readily available.

A.    Annual incidence rate of hypertension in the catchment population in the past five years

B.    Incidence rate of hypertension in the catchment population in 2012

C.    Annual cause specific death rate (i.e., death rate from hypertension in the population) in the past five years

D.    Point prevalence of hypertension on December 31, 2012