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. 2021 Mar 12;36(4):393–400. doi: 10.1007/s10654-021-00737-5

Fig. 1.

Fig. 1

Overview of study design BMI indicates body mass index; CVD, cardiovascular disease; GWAS genome-wide associations study; IVW inverse-variance weighted; SNP single-nucleotide polymorphisms. T2DM, type 2 diabetes mellitus. Data extracted were beta coefficients with corresponding standard errors of the SNP–insomnia, SNP-CVDs, SNP-depression, SNP-sleep duration, SNP-BMI, SNP-smoking and SNP-T2DM associations.