Table 7 Percentages of offspring with congenital heart disease with Maternal Off-Diet Phe Levels (μmol/L)
From: The complete European guidelines on phenylketonuria: diagnosis and treatment
|  | ≥1200 μmol/l | 900–1200 μmol/l | 600–900 μmol/l | 180–600 μmol/l | Control group/normal population |
|---|---|---|---|---|---|
Lenke and Levy 1980 [318] | 12% of n = 225 | 15% of n = 46 | 6% of n = 33 | 0% of n = 44 | 0.8% in normal population |
MPKUCS Koch 2003 [319] | 11% of n = 257 | 5% | 3% | 2% of n = 66 | 1% CHD of n = 100 control pregnancies |
n = 91 with 600–1200 μmol/l | |||||