Table 1.

Growth parameters and uterine artery hemodynamics

	Normoxic	Hypoxic	P-value
Growth parameters
Maternal daily food intake (g)	6.4 ± 0.3	5.8 ± 0.4	NS
Litter size, number of fetuses	8.7 ± 0.3	8.2 ± 0.3	NS
Resorption number	0.50 ± 0.21	0.67 ± 0.30	NS
E0.5 Maternal weight (g)	23.3 ± 0.6	22.6 ± I.I	NS
E18.5 Maternal weight gain (g (% increase))	15.7 ± 0.9 (69)	10.9 ± 0.7 (51)	0.03
Uterine artery hemodynamics
UtA peak systolic velocity (mm/sec)	254 ± 37	345 ± 40	NS
UtA end-diastolic velocity (mm/sec)	113 ± 21	169 ± 10	0.05
UtA mean velocity (mm/s)	148 ± 21	208 ± 23	0.02
UtA PI	0.57 ± 0.03	0.49 ± 0.03	0.13
UtA diameter (mm)	0.63 ± 0.02	0.70 ± 0.04	0.20
Cardiac output (ml/min)	31 ± 3	35 ± 3	NS
Stroke volume (μl)	64 ± 6	67 ± 7	NS
Heart rate (bpm)	486 ± 6	527 ± 7	0.001

Data presented as mean ± SEM NS = non-significant maternal daily food intake (g) 6.4 ± 0.3 5.8 ± 0.4 NS.