3.2.2 LH on COVID-19
The IVW results suggested that higher LH was strongly linked to a higher probability of developing severe COVID-19 (OR = 1.733, 95% CI: 1.072,2.802, P = 0.025), but the causal relationship disappeared after applying the Bonferroni correction. Furthermore, no connections between LH and COVID-19 infection (OR = 1.147, 95% CI: 0.963,1.365, P = 0.123), as well as COVID-19 hospitalization (OR = 1.147, 95% CI: 0.837,1.573, P = 0.393), were causative (Figure 1 and SupplementaryTable S11 ).