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. 2007 Apr 4;13:534–544.

Table 4. Wald test of main effects in a forward stepwise regression analysis of case-pseudocontrol dataset.



Wald test statistic
Null model
Alternative model
chi2
df
P
NGA17
NGA17 + NGA19
4.79
2
0.0914
NGA17
NGA17 + rs2421853
11.33
2
0.0035
NGA17
NGA17 + rs235858
18.43
2
0.0001

NGA19
NGA19 + NGA17
5.3
2
0.0706
NGA19
NGA19 + rs2421853
10.13
2
0.0063
NGA19
NGA19 + rs235858
22.61
2
1.20E-05

rs2421853
rs2421853 + NGA17
3.64
2
0.1622
rs2421853
rs2421853 + NGA19
3.86
2
0.1455
rs2421853
rs2421853 + rs235858
17.88
2
0.0001

rs235858
rs235858 + NGA17
0.52
2
0.771
rs235858
rs235858 + NGA19
4
2
0.1355
rs235858
rs235858 + rs2421853
6.36
2
0.0415

rs2421853 + rs235858
rs2421853 + rs235858 + NGA17
0.79
2
0.674
rs2421853 + rs235858
rs2421853 + rs235858 + NGA19
4.11
2
0.1283
rs2421853 + rs235858 rs2421853 + rs235858 + NGA17 + NGA19 5.08 2 0.2789

For NGA17 and NGA19, the case-pseudocontrol dataset was generated after grouping all non-5 alleles into one allele.