Superior vena cava. Men have a higher rate of malfunction than women. Women have a higher rate of malfunction than men.
Women have a rate of malfunction equal to that of men.
There is no definite consensus in the literature on gender-based risk of catheter malfunction. Presence of a hypercoagulable state 5. It provides smaller P values than conventional statistical methods. It controls for the effects of censored data. It underestimates the mean survival time compared with that seen with conventional statistical methods.