GH VS Normotensive
Four studies (5216 twin pregnancies) explored the risk of birthweight
discordance (≥15%) in twin
pregnancies with GH compared to Normotensive group. In all, no evident
association was observed between GH and the incidence of intertwin
birthweight discordance (OR 1.24, 95% CI 0.96-1.60;
I2 =0%). According to the stratified sampling, GH was
a risk factor for birthweight discordance in DC group (OR 2.08, 95% CI
1.33-3.25; I2 =0%), but a protective factor in MC
group (OR 0.37, 95% CI 0.16-0.82; I2 =0%). (Figure
2)