BioMed Research International / 2019 / Article / Tab 2

Research Article

Effect of Gestational Weight Gain on Perinatal Outcomes in Low Risk Pregnancies with Normal Prepregnancy Body Mass Index

Table 2

Comparison of perinatal outcomes among groups.

Inadequate weight gain (n:62)Normal weight gain (n:430)Excessive weight gain (n:80)p-value

Gestational age at delivery (week)37,95±1,3338,50±1,3338,47±1,530.010
Fetal weight (g)3063±2793395±3213652±324<0.001
Low birth weight <2.5kgs (n%)4 (6,4%)22 (5,1%)3 (3,7%)0.765
Birth weight > 4.0kgs (n%)2 (3,2%)21 (4,8%)5 (6,2%)0.711
SGA (n%)6 (9,6%)30 (6,9%)5 (6,2%)0.702
LGA (n%)2 (3,2%)28 (6,5%)7 (8,7%)0.414
Male sex (n%)34 (54,8%)223(51,8%)41(51,2%)0.887
Induction of labor (n%)13 (20,9%)77 (19,0%)19(23,7%)0.571
Delivery<37 weeks (n%)5 (8,0%)35 (8,1%)5 (6,2%)0.868
Cesarean delivery for nonreassuring fetal heart rate testing (n%)3 (4,8%)17 (3,9%)4 (5%)0.881
Meconium-stained amniotic fluid (n%)4 (6,4%)25(5,8%)7 (8,7%)0.841
TTN (n%)3 (4,8%)20 (4,6%)4 (5%)0.988
RDS (n%)1 (1,6%)4 (0,9%)1 (1,25%)0.864
Hyperbilirubinemia(n%)2 (3,2%)7 (1,6%)3 (3,6%)0.386

SGA: small for gestational age, LGA: large for gestational age, TTN: transient tachypnea of the newborn, and RDS: respiratory distress syndrome.
Note. Different superscripts indicate statistically significant differences. Fetal weight was significantly lower in inadequate weight gain group compared to normal weight gain group (p<0.001). Fetal weight was significantly lower in normal weight gain group compared to excessive weight gain group (p<0.001).
The comparison of more than two groups was investigated using ANOVA followed by Tukey’s post hoc test with Minitab 16 (MinitabInc.; StateCollege, PA, USA). The difference between groups was considered statistically significant when p value was<0.05.

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