TABLE.

Percentile Weights and Small-for-gestational-age Births Among 2309 Fetuses With a Routine 32-week Ultrasound at the Royal Victoria Hospital, Montreal, Canada

	Reference	Standard
N (percent of total population)	2,309 (100)	690 (29.9)
50th percentile estimated fetal weight [95% CI]	1,989 [1,976, 2,002]	1,968 [1,950, 1,993]
10th percentile estimated fetal weight (g) [95% CI]	1,711 [1,694, 1,726]	1,710 [1,679, 1,728]
5th percentile estimated fetal weight (g) [95% CI]	1,624 [1,605, 1,643]	1,624 [1,592, 1,656]
3rd percentile weight (g) [95% CI]	1,569 [1,539, 1,595]	1,572 [1,523, 1,618]
N (%) < 10th	228 (9.9)	228 (9.9)
N (%) < 5th	115 (5.0)	116 (5.0)
N (%) < 3rd	69 (3.0)	70 (3.0)

CI, confidence interval.