Influence of overweight and obesity on perinatal outcomes in assisted reproduction: a retrospective cohort study

Table 1 Perinatal outcomes compared between the groups

Variables	G1 n = 1270 cycles n = 425 LB	G2 n = 356 cycles n = 115 LB	G3 n = 127 cycles n = 38 LB	p
Live birth rate (%)	33.5 CI 20–30	32.3 CI 20–30	29.9 CI 20–30	0.668^b
Maternal conditions (%)
Preeclampsia	2.9 CI 2–5	6.1 CI 3–13	6.3 CI 2–22	0.268^a
PROM	1.3 CI 1–3	4 CI 1–9	3.1 CI 0–19	0.235^a
Hypothyroidism	15.4 CI 3–8	7.6 CI 1–8	11.1 CI 0–19	0.449^a
Pregnancy (%)
Twins	25.2 CI 20–30	26.5 CI 20–30	27 CI 20–30	0.940^a
Delivery (%)
C-section	91.4	95.6	97.3	0.221^a
Vaginal	8.6	4.4	2.7	0.221^a
Newborn’s (%)
Percentile
AGA	72.8 CI 70–80	73.9 CI 64–84	73.9 CI 55–88	0.999^a
SGA	23 CI 15–25	23.2 CI 13–32	21.7 CI 8–39	0.965^a
LGA	4.2 CI 2–7	2.9 CI 1–11	4.3 CI 1–26	0.890^a
Birth weight
Normal	71.6 CI 70–83	72.6 CI 72–87	78.4 CI 71–95	0.693^a
ELBW	2.1	0.9	0	0.693^a
VLBW	4.0	3.5	0	0.693^a
LBW	20.5	22.1	18.9	0.693^a
TL	26.6 CI 20–30	26.5 CI 20–30	18.9 CI 18–20	0.579^a
MS	1.9 CI 1–2	0.9 CI 1–2	2.7 CI 2–3	0.708^a
Apgar score at the fifth minute
< 7	2.4	1.8	0	0.616^b
> 7	97.6 CI 90–99	98.2 CI 93–99	100 CI 82–100	0.616^b
Outcomes
CMF	1.4	1.8	0	0.725^b
PTB	29.6	30.1	35.1	0.970^a
PND	1.6	1.8	0	0.728^b
ICU	7.2	2.7	2.7	0.166^a

G1, group 1; G2, group 2; G3, group 3; LB Live birth, CI 95% confidence interval, PROM Premature rupture of membranes, AGA Appropriate for gestational age, SGA Small for gestational age, LGA Large for gestational age, ELBW Extremely low birth weight, VLBW Very low birth weight, LBW Low birth weight, TL Total birth weight less than normal, MS Macrosomia, CMF Congenital malformations, PTB Preterm birth, PND Postnatal death, ICU Intensive care unit
Values are presented as percentages (%)
^aGeneralized estimating equations
^bChi-square test/post hoc

ISSN: 1471-2393