Table 1.

Maternal demographics, ultrasound characteristics and intrapartum outcomes stratified by FGR and SGA

Variables	FGR n = 161 (48.3%)	SGA n = 172 (51.7%)	p
Age of mother (years) median	30 [27–34]	30 [26–34]	0.656
GA_scan (weeks) median	32.8 [29.8–35.4]	34.9 [31.5–37.1]	< 0.001
Diabetes (maternal)	14 (8.7%)	5 (2.9%)	0.023
Smoker	7 (4.3%)	8 (4.7%)	0.894
Hypertension, pre-eclampsia (maternal)	10 (6.2%)	7 (4.1%)	0.376
UA PI median	1.21 [1.02–1.52]	1.01 [0.89–1.14]	< 0.001
MCA PI median	1.46 [1.26–1.79]	1.67 [1.40–1.94]	0.001
UCR median	0.86 [0.60–1.23]	0.62 [0.53–0.74]	< 0.001
CPR median	1.17 [0.82–1.66]	1.62 [1.35–1.90]	< 0.001
MCA PSV median	50.5 [42.5–56.9]	53.0 [45.3–59.3]	0.08
GA at delivery (weeks) median	34.8 [31.5–37.4]	38.1 [37.1–39.5]	< 0.001
APGAR after 5 min median	9 [8–10]	9 [9–10]	< 0.001
Birth weight centile
< 3. Centile	70 (43.5%)	60 (34.9%)	0.109
< 10. Centile	112 (69.6%)	111 (64.5%)	0.330
Umbilical cord pH median	7.31 [7,27–7,34]	7.29 [7,25–7,34]	0.08
Birth weight (g) median	1780 [1230–2290]	2565 [2278–2805]	< 0.001
Mode of delivery			< 0.001
Spontaneous vaginal	29 (18.0%)	87 (50.6%)
Instrumental	4 (2.5%)	7 (4.1%)
Cesarean section	128 (79.5%)	78 (45.4%)
CS primary Misgav-Ladach-Sectio	107 (66.5%)	50 (29.1%)
CS secondary Misgav-Ladach-Sectio	21 (13.0%)	28 (16.3%)
Premature birth (< 37 week)	106 (65.8%)	36 (20.9%)	< 0.001

Data are given as mean (SD); median (25th–75th centile) or number (%); data available for 333 women

GA gestational age, GA_scan gestational age at time of ultrasound scan, UA umbilical artery, MCA middle cerebral artery, CPR cerebroplacental ratio, UCR umbilicocerebral ratio, PI pulsatily index, PSV peak systolic velocity, CS Cesarean section