Definition 2: <6 month vs. >=6 month
There was pronounced difference in the number of major complications
(OR, 1.51; 95% Cl, 1.03 to 2.22; P=0.04), with very low geneity
(I2=0%). The publication bias of the length of stay was assessed. None
was detected.
In sum, operating the surgery when patient no more 6 months old, it
maybe decrease the number of major complications happen.