MedicalStat

Incidence Rate Ratio

Per:
Decimals:

Groups Observations
Cases Time (years) Incidence Rate SE(IR) SE(ln(IR)) 95 % Confidence Interval
Exposed
Not exposed
Total



Results

Incidence Rate Ratio SE(Ln(IRR)) % Confidence Interval
Null Hypothesis Z P

IRR

Incidence Rate DIfference SE % Confidence Interval
Null Hypothesis Z P

IRD

Chi Square Test:
Expected Values Critical \( \chi^2 \) value
( 5% level )
\( \chi^2 \) P
Groups Observations \( \chi^2 \) Contributions  
Cases Time (years) \( \chi^2 \)
Exposed
Not exposed
Total