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. 2021 Jul 7;12:702374. doi: 10.3389/fgene.2021.702374

TABLE 4.

Correlation between genotype and phenotype in GA1 patients: comparison of the four most common variants from 47 patients.

c.533G > A c.1064G > A c.1147C > T c.1244-2A > C P value
n % n % n % n %
Case 7 14.9 12 25.5 5 10.6 23 48.9
Age of onset (months) 5.6 (5∼6) 5.9 (0∼17.3) 9.25 (4∼14.5) 7.3 (0.3∼24.3) 0.735
Age of diagnosis (months) 7.9 (2∼66) 14.95 (0.7∼89.8) 5.8 (3.4∼42.8) 16.5 (0.9∼110.8) 0.454
NBS 2 28.6 1 8.3 2 40.0 5 21.7 0.484
Nervous system
Macrocephaly 2 28.6 3 25.0 1 20.0 9 39.1 0.758
Movement disorder 3 40.0 7 60.0 2 40.0 9 40.0 0.742
Muscular hypotonia 3 40.0 7 60.0 1 20.0 8 30.0 0.426
Mental retardation 3 40.0 7 60.0 1 20.0 8 30.0 0.426
Seizure 4 60.0 5 40.0 1 20.0 11 50.0 0.613
Gastrointestinal system
Diarrhea 1 20.0 0 0.0 1 10.0 2 10.0 0.682
Failure to thrive 0 0.0 0 0.0 1 10.0 4 20.0 0.458
Vomiting 1 20.0 1 10.0 2 20.0 2 10.0 0.860
Feeding difficulty 0 0.0 2 30.0 4 30.0 5 20.0 0.521
Biochemical results (before treatment)
C5DC (μ mol/L) 1.04 (0.26∼3.37) 2.08 (0.38∼5.13) 1.49 (0.94∼2.33) 1.00 (0.11∼4.48) 0.826
C5DC/C8 15.64 (3.04∼19.43) 30.18 (4.45∼51.54) 22 (12.42∼45.91) 28.63 (2.7∼161.4) 0.251
GA (mmol/molCr) 404.69 (40.2∼1146.3) 409.17 (8.79∼1550.19) 742 (511.53∼1093.04) 773.44 (14.09∼2857.3) 0.402
Outcome 0.491
Normal 2 2 3 8
Abnormal 4 8 2 13
NA 1 2 2

NBS, newborn screening; NA, not available.