Clinical Research
Copyright ©2007 Baishideng Publishing Group Co.
World J Gastroenterol. Feb 28, 2007; 13(8): 1230-1235
Published online Feb 28, 2007. doi: 10.3748/wjg.v13.i8.1230
Table 2 The frequency of gastrointestinal symptoms according to the three genotype groups of lactase persistence/nonpersistence during previous three months
Abdominal complaintsC/C % (n)C/T % (n)T/T % (n)OR C/C vs C/TPOR C/C vs T/TP
(95% CI)(95% CI)
During previous three months84 (280/332)79 (698/885)78 (501/641)1.44 (1.03-2.02)< 0.051.50 (1.06-2.14)< 0.05
Daily23 (78/338)22 (199/891)19 (127/652)1.04 (0.77-1.41)NS1.24 (0.90-1.71)NS
Every other day21 (72/338)16 (145/891)20 (129/652)1.39 (1.02-1.91)< 0.051.10 (0.79-1.52)NS
Once a week22 (74/338)20 (176/891)18 (115/652)1.14 (0.84-1.55)NS1.31 (0.94-1.82)NS
More seldom than once a week17 (58/338)20 (177/891)21 (138/652)0.84 (0.60-1.16)NS0.77 (0.55-1.08)NS
No complaints16 (52/332)21 (187/885)22 (140/641)1.44 (1.03-2.02)< 0.051.50 (1.06-2.13)< 0.05