Table 2

Genotype distribution of the six catechol-O-methyltransferase single-nucleotide polymorphisms in patients and healthy controls from Mexico and Spain


Spanish
Mexican
Genotype
Patients
Controls
P value
Patients
Controls
P value

n (%)
n (%)

n (%)
n (%)


rs6269






     AA
21 (27)
14 (18)
0.015a
30 (53)
17 (52)
NS
     AG
42 (54)
34 (42)

21 (37)
13 (39)

     GG
15 (19)
32 (40)

6 (10)
3 (9)

rs4633






     CC
28 (36)
19 (24)
NSa
21 (37)
17 (52)
NS
     CT
36 (46)
37 (46)

28 (49)
13 (39)

     TT
14 (18)
24 (30)

8 (14)
3 (9)

rs4818






     CC
19 (24)
13 (16)
0.001
30 (53)
15 (46)
NS
     CG
47 (60)
33 (41)

21 (36)
12 (36)

     GG
12 (16)
34 (43)

6 (11)
6 (18)

rs4680






     AA
9 (12)
22 (27)
0.023a
2 (4)
4 (12)
NS
     AG
40 (51)
39 (49)

32 (56)
14 (42)

     GG
29 (37)
19 (24)

23 (40)
15 (46)

rs20907






     AA
31 (40)
23 (29)
NSa
26 (46)
15 (45.5)
NS
     AG
34 (43)
40 (50)

24 (42)
15 (45.5)

     GG
13 (17)
17 (21)

7 (12)
3 (9)

rs16559






     AA
36 (46)
33 (41)
NSa
12 (21)
10 (30)
NSa
     AG
30 (39)
35 (44)

32 (56)
15 (46)

     GG
12 (15)
12 (15)

13 (23)
8 (24)


aχ2 test; NS, not significant.

Vargas-Alarcón et al. Arthritis Research & Therapy 2007 9:R110   doi:10.1186/ar2316

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