In a non-randomized trial of D Ig administration after amniocentesis, control Rh-negative women delivering Rh-positive infants were more likely to become isoimmunized than were those receiving D Ig (5.2% vs. 0%), although because of small numbers this difference was not statistically significant.
Chez les femmes Rh n´ gatif e c e accouchant d’un nourrisson Rh positif, on a observ´ des taux e analogues d’isoimmunisation dans le groupe d’intervention (Ig anti-D apr` s un PVC) et dans le groupe t´ moin (pas d’Ig anti-D apr` s un e e e PVC), soit respectivement 2,3 % et 1,1 %.