Exploring thought, conscience, and dreams.
www.youtube.com/watch?v=Q6Bc...
www.youtube.com/watch?v=Q6Bc...
Learn more: scim.ag/4mi1yUf
Learn more: scim.ag/4mi1yUf
www.dejusticia.org/column/grand...
www.dejusticia.org/column/grand...
www.elespectador.com/opinion/colu...
www.elespectador.com/opinion/colu...
https://go.nature.com/418B5Pm
https://go.nature.com/418B5Pm
If you were taught to test for proportional hazards, talk to your teacher.
The proportional hazards assumption is implausible in most #randomized and #observational studies because the hazard ratios aren't expected to be constant during the follow-up. So "testing" is futile.
But there is more 👇
If you were taught to test for proportional hazards, talk to your teacher.
The proportional hazards assumption is implausible in most #randomized and #observational studies because the hazard ratios aren't expected to be constant during the follow-up. So "testing" is futile.
But there is more 👇
Learn more: https://scim.ag/4jPYRID
Learn more: https://scim.ag/4jPYRID
That "immortal time" is so frequent in survival analyses for #causalinference is fascinating.
Because "immortal time" doesn't exist in the data, *we* create it when misanalyzing the data.
Our new paper pubmed.ncbi.nlm.nih.gov/39494894/ summarizes why immortal time arises & how to prevent it.
That "immortal time" is so frequent in survival analyses for #causalinference is fascinating.
Because "immortal time" doesn't exist in the data, *we* create it when misanalyzing the data.
Our new paper pubmed.ncbi.nlm.nih.gov/39494894/ summarizes why immortal time arises & how to prevent it.
hsph.harvard.edu/news/conside...
hsph.harvard.edu/news/conside...