Research Article

Combined Genetic Biomarkers Confer Susceptibility to Risk of Urothelial Bladder Carcinoma in a Saudi Population

Table 2

Genotype distributions and allele frequencies of examined SNPs in UBC cases.

SNP IDCasesControls ( value ( value OR (95% CI); ( value
(%) (%)

GSTM1:
“+/+”28 (53.8)64 (61.5)0.8 0.8
“−/−”24 (46.2)40 (38.5)0.8
“+”56 (0.54)128 (0.62)1.4 (0.9–2.2); 1.3
“−”48 (0.46)80 (0.38)
GSTT1:
“+/+”46 (88.5)96 (92.3)0.6 0.6
“−/−”6 (11.5)8 (7.7)0.6
“+”92 (0.88)192 (0.92)1.6 (0.7–3.4); 1.1
“−”12 (0.12)16 (0.08)
CYP1A1 T6235C (rs4646903):
TT34 (65.4)60 (57.7)0.8 1.7
TC16 (30.8)42 (40.4)1.4
CC2 (3.8)2 (1.9)0.5
T84 (0.81)162 (0.78)0.8 (0.5–1.5); 0.6
C20 (0.19)46 (0.22)
CYP1A1 A4889G (rs1048943):
AA46 (88.5)92 (88.5)0.0 4.5
AG4 (30.8)12 (11.5)8.7
GG2 (26.9)0 (0.0)30.5 (<0.0001
A96 (0.92)196 (0.94)1.4 (0.5–3.4); 0.7
G8 (0.08)12 (0.06)
TP53 Pro72Arg (rs1042522):
Pro/Pro16 (30.8)16 (15.4)5.0 5.6
Pro/Arg22 (42.3)60 (57.7)3.3
Arg/Arg14 (26.9)28 (26.9)0.0
Pro54 (0.52)92 (0.44)0.7 (0.5–1.2); 1.3
Arg50 (0.48)116 (0.56)
MTHFR C677T (rs1801133):
CC33 (63.5)88 (84.6)8.8 14.4
CT14 (26.9)16 (15.4)2.9
TT5 (9.6)0 (0.0)10.2
C80 (0.77)192 (0.88)3.6 (1.8–7.1); 3.7
T24 (0.23)16 (0.12)
MTRR A66G (rs1801394):
AA0 (0.0)40 (38.5)26.8 (<0.000135.6
AG32 (61.5)54 (51.9)1.3
GG20 (38.5)10 (9.6)18.5 (<0.0001
A32 (0.31)134 (0.64)4.1 (2.5–6.7); 5.5 (<0.0001
G72 (0.69)74 (0.36)

“+”: present allele; “−”: null allele; “−,−”: homozygous null genotype; “+,+”: homozygous present genotype; OR: odds ratio; CI: confidence interval.
difference between two similar genotypes in cases and controls.
difference between genotypes of a specific SNP in cases compared with controls.
of allele frequencies of a specific SNP.