If I analyze a set of data use syntax ”ci means variate” and I get a result like this

ci means y

Variable | Obs Mean Std. Err. [95% Conf. Interval]
-------------+---------------------------------------------------------------
y | 47 4.929787 .4511155 4.021739 5.837836



If I use survival analysis syntax “stci” and I get this，who can tell me which one I can count on

stci

failure _d: 1 (meaning all fail)
analysis time _t: y

| no. of
| subjects 50% Std. Err. [95% Conf. Interval]
-------------+-------------------------------------------------------------
total | 47 5.6 .3954528 1.4 6.3



Thank you very much