Molecularly defined adult-type hypolactasia in school-aged children with a previous history of cow’s milk allergy

Table 3 Abdominal symptoms during a one-week period in school-aged children genotyped for adult-type hypolactasia

	Total	T/T1-13910	C/T1-13910	C/C2-13910
Questionnaire completed	n = 163	n = 62	n = 74	n = 27
Abdominal symptoms	(n = 38)	15% (n = 9)	27% (n = 20)	33%a(n = 9)
Flatulence	(n = 17)	5% (n = 3)	12% (n = 9)	19%b(n = 5)
Periumibilical pain	(n = 10)	6.5% (n = 4)	5.4% (n = 4)	7.4%(n = 2)
Loose stools	(n = 7)	3.2% (n = 2)	5.4% (n = 4)	3.7%(n = 1)
Upper epigastric pain	(n = 7)	5% (n = 3)	4.0% (n =3)	3.7%(n = 1)
Constipation	(n = 5)	0	5.4% (n = 4)	3.7%(n = 1)
Dyspepsia	(n = 1)	0	1.4% (n = 1)	0

¹lactase persistence;

² defines adult-type hypolactasia;

^aP = 0.05,

^bP < 0.04 vs T/T-₁₃₉₁₀ genotype.