Educational attainment
Impressively, EA not only presented a significant association with a decreased risk of MA in UVMR analysis, but was also causally associated with a decreased risk of abortion in MVMR analysis after adjusting for different factors(EA in model 1, OR=0.886, 95%CI, 0.840-0.934, P=8.44E-06; EA in model 2, OR=0.900, 95%CI, 0.854-0.948, P= 8.88E-05; EA in model 3, OR=0.905, 95%CI, 0.858-0.955, P=2.66E-04; EA in model 4, OR=0.917, 95%CI, 0.869-0.967, P=1.53E-03) (see Figure 3).