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Dear all:
Thanks for your reply!
The dilemma is we have the concentration data but don't have the actual sampling time. If we treat it as missing data, don't use it in bioequivalence evaluation, would assessor think we are hiding data? Should we include the data in PK analysis and use schedule time to be the "best guess"? One literature suggest to use log linear interpolation (at elimination phase) to minimize the bias (also as your reply). But someone said the assessor will think you are manipulating data.
which one would be the best choice?
Grace
Thanks for your reply!
The dilemma is we have the concentration data but don't have the actual sampling time. If we treat it as missing data, don't use it in bioequivalence evaluation, would assessor think we are hiding data? Should we include the data in PK analysis and use schedule time to be the "best guess"? One literature suggest to use log linear interpolation (at elimination phase) to minimize the bias (also as your reply). But someone said the assessor will think you are manipulating data.
which one would be the best choice?Grace
Complete thread:
- handling of missing data gracehung 2013-05-20 07:35
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- Lin-up/log-down trapezoidal avoids most trouble Helmut 2013-05-20 14:22
- Lin-up/log-down trapezoidal avoids most trouble yjlee168 2013-05-22 08:25
- Multiple peaks: fallback to linear trapezoidal Helmut 2013-05-22 20:25
- Multiple peaks: fallback to linear trapezoidal yjlee168 2013-05-22 21:57
- No interpolation Helmut 2013-05-22 23:25
- No interpolation yjlee168 2013-05-23 11:43
- Spaghetti & other pasta Helmut 2013-05-23 15:15
- Spaghetti & other pasta yjlee168 2013-05-23 20:47
- Spaghetti & other pasta Helmut 2013-05-23 21:29
- Spaghetti & other pasta yjlee168 2013-05-23 22:46
- Spaghetti & other pasta Helmut 2013-05-24 01:24
- Spaghetti & other pasta yjlee168 2013-05-24 09:17
- Spaghetti & other pasta Helmut 2013-05-24 01:24
- Spaghetti & other pasta yjlee168 2013-05-23 22:46
- Spaghetti & other pasta Helmut 2013-05-23 21:29
- Spaghetti & other pasta yjlee168 2013-05-23 20:47
- Spaghetti & other pasta Helmut 2013-05-23 15:15
- No interpolation Ken Peh 2013-05-30 19:55
- Different algos! Helmut 2013-05-30 22:38
- Different algos! Ken Peh 2013-06-03 17:52
- Calculate what? Helmut 2013-06-03 18:11
- Different algos! Ken Peh 2013-06-03 17:52
- Different algos! Helmut 2013-05-30 22:38
- No interpolation yjlee168 2013-05-23 11:43
- No interpolation Helmut 2013-05-22 23:25
- Multiple peaks: fallback to linear trapezoidal yjlee168 2013-05-22 21:57
- Lin-up/log-down trapezoidal example Helmut 2013-05-25 15:09
- Lin-up/log-down trapezoidal example yjlee168 2013-05-25 19:45
- Multiple peaks: fallback to linear trapezoidal Helmut 2013-05-22 20:25
- Lin-up/log-down trapezoidal avoids most trouble yjlee168 2013-05-22 08:25
- handling of missing data Ohlbe 2013-05-20 21:45
- Sorry Helmut 2013-05-21 13:53
- Sorrygracehung 2013-05-23 01:06
- Uncertain time point Helmut 2013-05-23 01:35
- Sorrygracehung 2013-05-23 01:06
- Sorry Helmut 2013-05-21 13:53
- Lin-up/log-down trapezoidal avoids most trouble Helmut 2013-05-20 14:22
Ing. Helmut Schütz