ICU doc & skeptic. If it be a sin to covet honor, then I am the most offending soul alive. Tweets represent my own warped opinions, not my employer's.
May 7, 2020 • 16 tweets • 4 min read
To continue . . . in statistics, survival analysis and mortality analysis are different. Survival measures time-to-event, and the relevant comparison is the hazard ratio. Survival curves are generated by log-rank or Kaplan-Meier functions. /1
Hazard ratios essentially measure the difference between the two curves, and express the difference in the probability of a subsequent event happening in each of the two groups. /2
