Prevalence of lactase persistent/non-persistent genotypes and milk consumption in a young population in north-west Russia

Table 1 The distribution of the lactase-persistent/non-persistent genotypes by ethnicity n (%)

	CC-139101	CT-139102	TT-139102	Total
Russian	53 (35.6)	76 (51.0)	20 (13.4)	149 (100)
Others	9 (42.8)	11 (52.4)	1 (4.8)	21 (100)
Information missing	22 (36.1)	26 (42.6)	13 (21.3)	61 (100)
Total	84 (36.5)	112 (48.7)	34 (14.8)	231 (100)

¹Lactase non-persistent genotype;

²Lactase persistent genotype.

Table 2 Consumption of milk products by different C/T-13910 genotype variants n (%)

Consumption	CC-139101	CT-13910 and TT-139102	Total
Milk
Yes	31 (36.9)	71 (48.3)	102 (44.2)
No	53 (63.1)	76 (51.7)	129 (55.8)
Total	84 (100)	147 (100)	231 (100)
Sour milk
Yes	41 (48.8)	89 (60.5)	130 (56.3)
No	43 (51.2)	58 (39.5)	101 (43.7)
Total	84 (100)	147 (100)	231 (100)

¹Lactase non-persistent genotype;

²Lactase persistent genotype.