Table 1 The frequency of gastrointestinal symptoms (GI) among young people with lactase-persistent/non-persistent genotype (Question "Have you ever experienced the following symptoms?")
Lactase non-persistence C/C-13910 (n = 180) | Lactase persistence C/T and T/T-13910 (n = 338) | ||||
|---|---|---|---|---|---|
GI symptoms | n | % | n | % | p |
Stomach-ache | 93 | 51.7 | 176 | 51.9 | 1.00 |
Regurgitation | 23 | 12.8 | 42 | 12.4 | 0.89 |
Flatulence | 17 | 9.4 | 38 | 11.2 | 0.65 |
Heartburn | 14 | 7.8 | 23 | 6.8 | 0.72 |
Nausea | 13 | 7.2 | 25 | 7.4 | 1.00 |
Diarrhea | 3 | 1.7 | 12 | 3.5 | 0.28 |
Without GI symptoms | 74 | 41.1 | 142 | 42.2 | 0.71 |