When the event rate is of interest, which of the following equations represents the Poisson regression model? (µ=true mean count of events, t=subject years) A) µ/t =α+β₁x₁+β₂x₂+ · · · +βK^xK B) µ-t =α+β₁x₁+β₂x₂+ · · · +βK^xK C) logit(µ/t) =(α+β₁x₁+β₂x₂+ · · · +βK^xK) D) ln(µ) =α+β₁x₁+β₂x₂+ · · · +βK^xK + ln(t)

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Quizplus · Accepted Answer

The event rate is defined as µ/t. To get the equation for the event rate, you can simply replace the Poisson regression of the event (µ) by the event rate (µ/t). Thus, ln(µ/t)=ln(µ)-ln(t) = α+β₁x₁+β₂x₂+ · · · +βK^x or ln(µ) = α+β₁x₁+β₂x₂+ · · · +βK^x + ln(t).

When the Event Rate Is of Interest, Which of the Following