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Keywords:

  • Antenatal prophylaxis;
  • compliance;
  • rhesus;
  • sensitisation rates

Documented routine antenatal anti-D prophylaxis was given to 90% and 81–87% of eligible women at 28 and 34 weeks of gestation, respectively, during the early 1990s and early 2000s. With increasing experience and education, a significant improvement in the timing of the first (OR 0.26, 95% CI 0.16–0.41: P < 0.0001) and second injections (OR 0.40, 95% CI 0.26–0.61: P < 0.0001) occurred during the latter period. Despite these improvements, there was no reduction in the sensitisation rate at 0.4%. However, this low rate occurred despite significant proportions of women delivering more than 42 days after the second injection. Fifteen of the 16 sensitised women had received routine antenatal prophylaxis.