Aim: The aim of this study was to assess whether rs1333049 was associated with coronary heart disease (CHD) in Han Chinese.
Methods: This case-control study was involved with 599 CHD patients and 591 non-CHD controls. Meanwhile, a comprehensive meta-analysis was also conducted to establish the contribution of rs1333049 to CHD.
Results: Our results showed that rs1333049 increased the risk of CHD by 38% (OR=1.38, 95% CI=1.18-1.62). A breakdown analysis by gender further indicated that rs1333049 increased the risk of CHD in men by 29% (OR=1.29, 95% CI=1.05-1.58) and in women by 64% (OR=1.64, 95% CI=1.25-2.16). A follow-up subgroup analysis by age showed there was a significant association between rs1333049 and CHD in women younger than 65 (≤55 years: p=0.001, 55-65 years: p=0.008) and in men aged between 55 and 65 years (p=0.005). Our meta-analysis was involved with 21 studies (25 stages) among 20969 cases and 34114 controls. Our results showed that rs1333049 led to a significantly increased risk of CHD (OR=1.30, 95% CI=1.21-1.39). Further subgroup analyses by ethnicity showed rs1333049 increased the CHD risk by 30% in Europeans (OR=1.30, 95% CI=1.16-1.47) and 27% in Asians (OR=1.27, 95% CI=1.22-1.33).
Conclusions: Our case-control study and meta-analysis suggest that rs1333049 is a useful risk marker of CHD.
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