Impact of Anti-D dose
Of the 25 women who received Anti-D only after conception, 19 gave birth (76 %), and 8 had aborts (32 %) (table 2). Of the 21 women who received Anti-D prior to pregnancy, 14 gave birth (67 %), ten had aborts (48 %). Six women did not get pregnant. For eight women full data of Anti-D administration were not available (table 2).
In summary, the prophylactic administration of Anti-D also prior to pregnancy does not appear to be more effective than the administration only post gestation.
A chi-square test was used to compare pre and after conception injections of Anti-D with successful pregnancies. No expected cell frequencies were below 5. Results showed no significant correlation with χ²(1) = 0·801, p(χ²) = 0·371, p(Fisher’s exact test) = 0·522, V = 0·132.