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Table 2 Mean (SD) maternal and birth outcomes by parity and maternal blood group phenotype

From: ABO blood group system and placental malaria in an area of unstable malaria transmission in eastern Sudan

Parity Maternal and foetal parameters
  Placental malaria type Blood group number Maternal Hb Birth weight Foeto-placental ratio
All parity Infection Group O 47 11.8(2.1)* 3060.1(370.0) 5.4(1.0)
   Non-O 47 10.9(1.9 310.9(575.4) 5.6(1.0)
  No infection Group O 81 11.5(2.1) 3098.3(561.6) 5.7(1.1)
   Non-O 118 11.6(2.2) 3037.2(554.2) 5.6(1.4)
Primiparae Infection Group O 16 12.0(2.0)* 2946.4(367.2) 5.6(0.8)
   Non-O 13 10.4(2.3) 2898.3(409.7) 5.7(0.9)
  No infection Group O 35 11.1(2.1) 3065.4(462.4) 5.8(1.0)
   Non-O 50 11.7(2.3) 3019.8(593.9) 5.8(1.8)
Secundiparae Infection Group O 10 11.1(2.5) 3150.1(348.4) 5.7(0.3)
   Non-O 10 11.0(1.2) 3298.6(655.0) 5.5(1.3)
  No infection Group O 16 11.5(1.9) 3251.2(570.5) 6.0(1.2)
   Non-O 25 12.1(2.1) 2947.4(529.9) 5.4(1.0)
Multiparae Infection Group O 21 12.0(2.0) 3098.5(379.2) 5.1(0.98)
   Non-O 24 11.1(2.0) 3038.0(604.4) 5.5(1.3)
  No infection Group O 30 11.9(2.1) 3055.6(656.9) 5.4(1.1)
   Non-O 43 11.2(2.0) 3109.524.8) 5.3(0.9)
  1. * Significant difference