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A small cohort study is conducted in 13 patients with an aggressive cellular disorder linked cancer. The clinical courses of the patients are depicted graphically below.

    A) Compute the prevalence of cancer at 12 months

                    Prevalence =

   B  Compute the cumulative Incidence of cancer at 12 months

                  Cumulative incidence 12 mths =

   C) Compute the incidence rate (per month) of death

                    Incidence Rate = ————–per 1,000 person months.

A small cohort study is conducted in 13 patients with an aggressive cellular disorder linked cancer. The clinical courses of the patients are depicted graphically below.

A) Compute the prevalence of cancer at 12 months

Prevalence =

B Compute the cumulative Incidence of cancer at 12 months

Cumulative incidence 12 mths =

C) Compute the incidence rate (per month) of death

Incidence Rate = ————–per 1,000 person months.