Survival, Cox Regression, Kaplan Meier, Weibull Distribution, Accelerated Failure Time.
common baseline changes the hazard ratios completely. This make sense, as the event of going to the next lactation can only happen if the previous lactations took place, nothing else. The HR of 0.086 [ 0.071; 0.104] means that the hazard of going to the next lactation decreases by 100*(0.086–1) =