How to deal with a sequence effect? [General Statistics]
Hi d_labes,
Thanks for your thoughts.
Indeed the study has passed and I would not have posted it if the ratio's had been slightly reduced for both sequences; would have accepted that B affects A to a clinically irrelevant degree.
However, as the ratios are rather different for the two sequences, one of the two being a reduction of 21% and the other being no effect, I felt that this needed some more thought and hoped that some explanation might be found in the data. For one sequence there is a pretty consistent lower ratio, which might have clinical implications, even though the good ratio for the other sequence - and the sample size maybe - makes that the end result passes. I was wondering how to deal with that or if any explanation might/needs to be found to reassure me. The low ratio for one of the two sequences makes me feel a bit uncomfortable.
Regards,
Frieda
Thanks for your thoughts.
Indeed the study has passed and I would not have posted it if the ratio's had been slightly reduced for both sequences; would have accepted that B affects A to a clinically irrelevant degree.
However, as the ratios are rather different for the two sequences, one of the two being a reduction of 21% and the other being no effect, I felt that this needed some more thought and hoped that some explanation might be found in the data. For one sequence there is a pretty consistent lower ratio, which might have clinical implications, even though the good ratio for the other sequence - and the sample size maybe - makes that the end result passes. I was wondering how to deal with that or if any explanation might/needs to be found to reassure me. The low ratio for one of the two sequences makes me feel a bit uncomfortable.
Regards,
Frieda
Complete thread:
- How to deal with a sequence effect? Frieda 2008-08-01 14:36 [General Statistics]
- How to deal with a sequence effect? ElMaestro 2008-08-01 16:36
- How to deal with a sequence effect? Frieda 2008-08-06 09:57
- PK interaction studies Helmut 2008-08-01 18:58
- PK interaction studies Frieda 2008-08-06 18:35
- How to deal with a sequence effect? d_labes 2008-08-04 09:23
- How to deal with a sequence effect?Frieda 2008-08-06 13:49
- How to deal with a sequence effect? Helmut 2008-08-10 14:25
- How to deal with a sequence effect? d_labes 2008-08-11 14:50
- How to deal with a sequence effect? Helmut 2008-08-11 16:33
- actio est reactio d_labes 2008-08-12 09:55
- actio est reactio Helmut 2008-08-12 12:36
- actio est reactio d_labes 2008-08-12 09:55
- How to deal with a sequence effect? Helmut 2008-08-11 16:33
- How to deal with a sequence effect? d_labes 2008-08-11 14:50
- How to deal with a sequence effect? ElMaestro 2008-08-01 16:36
