In our setup we have detected that prematurity, low birth weight, morbidity, need for ventilaroty support and age at achieving full feeds lead to longer stay. In mutiple regression fashion the best predictor is age at achieving full feeds. We have also found that source of patient (inhouse/ accepted from outside), region of surgery, age at admission, age at surgery, need for ionotropic support, maternal comorbidities and assoicated cardiac and non cardiac anomalies do not lead to delayed discharge. Has anybody else find similar findings?