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Table 3 Multivariable linear regression analysis for postpartum decrease in hemoglobin (ΔHb)

From: Induction of labor and postpartum blood loss

 Influence on ΔHb (95% CI) in g/LCorrelation coefficientp
Induction of labor−3.9 (−5.5 to −2.4)−0.15< 0.001
BMI (kg/m2)0.1 (−0.0 to 0.3)0.050.09
Gestational age in days0.0 (− 0.1 to 0.1)0.010.83
Maternal age in years−0.1 (− 0.2 to 0.1)−0.330.26
Multiparity−6.1 (−7.7 to −4.4)−0.23< 0.001
Second stage of labor > 120 min7.4 (5.6 to 9.3)0.26< 0.001
Retained placenta15.7 (11.5 to19.9)0.22< 0.001
Retained placental tissue11.9 (7.8 to 16.00.17< 0.001
Birthweight in g0.0 (−0.0 to 0.0)−0.020.66
Placental abruption6.4 (−4.1 to 16.9)0.040.24
Repeat cesarean section7.8 (−0.8 to 16.4)0.060.07
Unplanned cesarean section2.7 (−0.6 to 6.1)0.050.11
Uterine Atony14.7 (11.5 to 17.9)0.27< 0.001
Induction of labor > 48 h2.1 (−2.5 to 6.7)0.030.36