Figure 1From: Long-term outcomes in Ornithine Transcarbamylase deficiency: a series of 90 patientsSurvival of OTCD patients by age of onset. Comparison of survival between the 1 mth-16 y and neonatal group. In the 1 mth-16 y group, the “critical” period (risk of death) is that between the first severe symptoms and diagnosis. In the neonatal form, there are two high-risk age intervals: the first days of life and the period between 1 and 7 years of age.Back to article page