Table 3. Results of univariate tests of association between SNPs in IGF2BP2 and T2DM-related quantitative traits.
rs13060777 | rs6444082 | rs11705701 | AG combinationa | |||||||||
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Uncorrected P value |
Uncorrected P value |
Uncorrected P value |
Uncorrected P value |
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Effectb | Age, sex | Age, sex, % fat | Effectb | Age, sex | Age, sex, % fat | Effectb | Age, sex | Age, sex, % fat | Effectb | Age, sex | Age, sex, % fat | |
BMI | - | 0.783 | N/A | - | 0.124 | N/A | - | 0.309 | N/A | + | 0.244 | N/A |
% Body fat | - | 0.134 | N/A | - | 0.016 | N/A | - | 0.001 | N/A | + | 0.011 | N/A |
Fasting glucose | - | 0.422 | 0.736 | - | 0.677 | 0.885 | - | 0.720 | 0.664 | + | 0.645 | 0.813 |
Two-hour glucose | + | 0.963 | 0.850 | + | 0.386 | 0.942 | + | 0.225 | 0.834 | - | 0.418 | 0.862 |
Fasting insulin | - | 0.530 | 0.940 | - | 0.186 | 0.774 | + | 0.352 | 0.479 | + | 0.386 | 0.483 |
30′ ΔInsulin | + | 0.125 | 0.311 | + | 0.040 | 0.137 | + | 0.018 | 0.109 | - | 0.035 | 0.141 |
Two-hour insulin | - | 0.055 | 0.104 | - | 0.014 | 0.175 | - | 0.008 | 0.126 | + | 0.011 | 0.156 |
SG | + | 0.660 | 0.850 | + | 0.926 | 0.790 | - | 0.256 | 0.100 | - | 0.922 | 0.722 |
SI | + | 0.718 | 0.595 | + | 0.090 | 0.967 | + | 0.150 | 0.743 | - | 0.166 | 0.703 |
AIR | - | 0.199 | 0.396 | - | 0.051 | 0.249 | - | 0.047 | 0.191 | + | 0.093 | 0.337 |
DI | - | 0.154 | 0.135 | - | 0.340 | 0.182 | - | 0.200 | 0.065 | + | 0.361 | 0.169 |
Uncorrected P values are shown for test of association under an additive genetic model adjusted for age and sex or with the additional adjustment for percent body fat. AIR, acute insulin response; DI, disposition index; IGF2BP2, insulin-like growth factor-2 binding protein 2; N/A, not available; SI, insulin sensitivity; SNP, single-nucleotide polymorphism; T2DM, type 2 diabetes mellitus.
The AG combination of rs13060777 and rs6444082 was modeled as the number of copies of the AG haplotype (see Methods and Procedures for details).
The directional effect of the minor allele on the quantitative trait based on the regression coefficient.