Reference no: EM13243750

1. Atotal of 300 participants are selected for a study of risk factors for cardiovascular disease. At baseline (study start), 48 are classified as hypertensive. At one year, an additional 24 have developed hypertension and at 2 years another 16 have developed hypertension. What is the prevalence of hypertension at 2 years in the study?

     1) Prevalence 2 years=

     2) What is the 2 year cumulative incidence of hypertension?

          Cumulative incidence 2 years =

2. The following data were collected in a study relating hypertensive status measured at the baseline to incident stroke over 5 years.

   1) Compute the Cumulative incidence of stroke in the study.  Cumulative Incidence =

   2) Compute the Cumulative incidence of stroke in patients classified as hypertensive at baseline

                 Cumulative Incidence Hypertension =

3. Compute the cumulative incidence of stroke in patients free of Hypertension at baseline.

                Cumulative Incidence not Hypertensive =

1) Compute the risk difference of stroke in patients with Hypertensive as compared to patients free of hypertension.   Risk Difference  =

2)      Compute the relative risk of stroke in patients with hypertension as compared to patients free of hypertension.  Relative Risk =

3)       Compute the population attributable risk of stroke due to hypertension. PAR =

                                                              Free of stroke at 5 years                        Stroke

Baseline: Not Hypertensive                            1,904                                               92

Baseline: Hypertensive                                      468                                               36