Research Article

Mild Anemia and Pregnancy Outcome in a Swiss Collective

Table 2

Maternal outcome (%).
(a)

Group 1Group 2Group 3Group 4All women

Hb at delivery (g/dL)10.9 ± 1.1 (8.8–12.7)12.1 ± 1.2 (7.9–15.4)11.3 ± 0.9 (9.1–12.9)12.5 ± 0.9 (9.5–15.1)12.1 ± 1.2 (7.9–15.4)
Placental abruption0/25 (0.0)1/123 (0.8)0/45 (0.0)1/189 (0.5)2/382 (0.5)
Abnormal placentation2/25 (8.0)4/123 (3.3)0/45 (0.0)2/189 (1.1)8/382 (2.1)
Preeclampsia, eclampsia0/25 (0.0)1/123 (0.8)3/45 (6.7)4/189 (2.1)8/382 (2.1)
Cardiac failure0/25 (0.0)0/123 (0.0)0/45 (0.0)0/189 (0.0)0/382 (0.0)
Delivery modus
 Nonoperative vaginal delivery16/25 (64.0)69/123 (56.1)23/45 (51.1)91/189 (48.1)199/382 (52.1)
 Operative vaginal delivery1/25 (4.0)9/123 (7.3)3/45 (6.7)31/189 (16.4)44/382 (11.5)
 Caesarean section prim.6/25 (24.0)25/123 (20.3)14/45 (31.3)37/189 (19.6)82/382 (21.5)
 Caesarean section sec.2/25 (8.0)20/123 (16.3)5/45 (11.1)30/189 (15.9)57/382 (14.9)
Postpartum hemorrhage1/25 (4.0)7/123 (5.7)6/45 (13.3)21/189 (11.1)35/382 (9.2)
Puerperal sepsis0/25 (0.0)0/123 (0.0)0/45 (0.0)0/189 (0.0)0/382 (0.0)
Puerperal infection0/25 (0.0)6/123 (4.9)1/45 (2.2)6/189 (3.2)13/382 (3.4)
 Urinary tract infection0/25 (0.0)1/123 (0.8)0/45 (0.0)1/189 (0.5)2/382 (0.5)
 Wound infection0/25 (0.0)1/123 (0.8)0/45 (0.0)2/189 (1.1)3/382 (0.8)
 Mastitis0/25 (0.0)2/123 (1.6)1/45 (2.2)2/189 (1.1)5/382 (1.3)
 Endometritis0/25 (0.0)1/123 (0.8)0/45 (0.0)0/189 (0.0)1/382 (0.3)
 Thrombophlebitis0/25 (0.0)1/123 (0.8)0/45 (0.0)1/189 (0.5)1/382 (0.3)
 Infection of unclear etiology0/25 (0.0)1/123 (0.8)0/45 (0.0)0/189 (0.0)1/382 (0.3)
Subinvolution1/25 (4.0)3/123 (2.4)0/45 (0.0)2/189 (1.1)6/382 (1.6)

(b)

P value1 versus 42 versus 43 versus 41, 2, and 3 versus 4

Hb at delivery0.001***0.005**0.001***0.001***
Placental abruption1111
Abnormal placentation0.0680.21710.284
Preeclampsia, eclampsia10.6520.1321
Delivery modus0.2110.1250.1570.021*
Postpartum hemorrhage0.4820.110.6130.217
Puerperal infection10.5511
Subinvolution0.3120.38610.685

P value < 0.05; **P value < 0.005; ***P value < 0.001.