Table 4.

Distribution and mean (±SD) gestational age at delivery and birth weight in newborn infants born to mothers with or without treatment with ergotamine drops

	Gestational age (weeks)
	<36		37–41		>42				Gestational age (weeks)				Gestational age (weeks)
Birth weight (g)	Yes	No	Yes	No	Yes	No	Exposed Total number	%	Mean	SD	Unexposed Total number	%	Mean	SD
<2499	6	1277	3	830	0	51	9	16.4	35.0	3.4	2158	5.7	35.6	3.2
2500–3499	3	2181	26	19 160	2	1468	31	56.4	38.8	1.8	22 809	59.9	39.1	1.8
>3500	0	29	14	10 760	1	2340	15	27.3	40.5	1.5	13 129	34.5	40.7	1.2
Total number	9	3487	43	30 750	3	3859	55	100.0	38.7	2.7	38 096	100.0	39.4	2.0
%	16.4	9.2	78.2	80.7	5.5	10.1	100.0				100.0
Mean	2162	2484	3247	3 323	3440	3615	3080				3 276
SD	549	436	481	429	185	485	629				511