Confidence interval for person time incidence rate
- Thread starter didye
- Start date
- Tags confidence intervals incidence rate kaplan meier person-time
See page 84 of the book. There is an equation for CI calculation.
https://books.google.co.uk/books?id...terval for person time incidence rate&f=false
Regarding K-M, I am afraid you cant generate a CI just based on number. It takes account of the number of events, number at risk and uses Greenwood's method (most software by default), which uses the sum of all the estimates in preceding time interval to compute variance and CI. If you've found any other method, I would be interested to hear.
HTH
https://books.google.co.uk/books?id...terval for person time incidence rate&f=false
Regarding K-M, I am afraid you cant generate a CI just based on number. It takes account of the number of events, number at risk and uses Greenwood's method (most software by default), which uses the sum of all the estimates in preceding time interval to compute variance and CI. If you've found any other method, I would be interested to hear.
HTH
