Table 4

Association studies of common DNA variants of the NRIP1 gene in relation to human endometriosis.

NRIP1 polymorphism (change in codon)
Genotypes
Patients (n = 59)
Unselected Controls (n = 94)
Super Controls (n = 47)
All Controls (n = 141)
Statistical Analysis*

Gly75Gly (ggg to gga)
aa
15
19
9
28
P = 0.34 (Heterozygous test)

ag
27
46
27
73


gg
17
28
11
39

Arg448Gly (cga to gga)
cc
44
83
40
123
P = 0.027 (Allele positivity test)

cg
14
10
7
17


gg
1
1
0
1

Ser803Leu (tcg to ttg)
cc
56
85
46
130
P = 0.59 (Armitage's trend test)

ct
3
9
1
10


tt
0
0
0
0


*Compares patients versus merged controls. Best p value employing tests for genetic association according to Sasieni (1997). Ile441Val and His221Arg are not analyzed due to small or null sample size in endometriosis samples.