Quantitative values (age, biochemical parameters) were compared using matched Student’s t-test; the mean change in qualitative variables (sex, indication of PN, hepatic comorbidities, presence of insulin in cPN, infection during cPN, management of LD prior to cPN administrarion) was estimated using Mann-Whitney U test, and bivariate correlation between quantitative variables was determined by Spearman’s coefficient of correlation. The gene discussed is INS; the disease is infection.