Table 2. Distribution of the CPS1 genotypes for the polymorphism at position 1405 in preterm infants.

	CC genotype	CA genotype	AA genotype
Las Palmas de Gran Canaria (Spain), n = 66	39 (59.1)	19 (28.8)	8 (12.1)
Mantova (Italy), n = 31	18 (58.1)	12 (38.7)	1 (3.2)
Maastricht (the Netherlands), n = 31	14 (45.2)	12 (38.7)	5 (16.1)
Total study group, n = 128	71 (55.5)	43 (33.6)	14 (10.9)

Results are expressed as absolute numbers of patients (percentage). CC denotes homozygosity for the C-encoded Thr1405 variant, AA homozygosity for the A-encoded Asn1405 variant, and AC heterozygosity for this polymorphism.