APOA1 and insomnia measurement: The odds ratio (OR) indicated that a one-SD increase in ApoA-1 was causally related to a 24.54% decrease in the risk of insomnia (Table 1, ApoA-1: N = 10 SNPs, OR: 0.7546, 95% CI: 0.6075–0.9372, P = 0.011).