From: Polymorphism in the oxytocin promoter region in patients with lactase non-persistence is not related to symptoms
A
n (%)
G
Lactase persistence (n:254)
231 (90.9)
23 (9.1)
Lactase non-persistence (n:154)
132 (85.7)
22 (14.3)
Controls (n:299)
269 (90.0)
30 (10.0)