Right, Left, Interval, Delayed, and truncted data

Question

I have a medical data set that has all the following cases:

Right-censored
Left-censored
Interval-censored
Delayed-censored and
truncated-data.

I am trying to fit this data with CoxPH function in survival package in R. So my question, is there any consideration I have to take when I feed the data to Cox model, or just use the data as is.

score 1 · Accepted Answer · answered Jun 12 '21 at 19:32

The analysis used by coxph() only allows for right-censored or counting process (left truncated, right censored/event) data. From the code (in survival_3.2-7):

if (type == "mright" || type == "mcounting") 
    multi <- TRUE
else if (type != "right" && type != "counting") 
    stop(paste("Cox model doesn't support \"", type, "\" survival data", 
        sep = ""))

where "mright" and "mcounting" are right censoring or counting-process data in a multi-state model.

Ways to handle other types of censoring or truncation are discussed here.

Right, Left, Interval, Delayed, and truncted data

1 Answers1