. Author manuscript; available in PMC: 2010 Jan 5.

Published in final edited form as: Pediatrics. 2009 Jul;124(1):234–240. doi: 10.1542/peds.2008-3232

TABLE 3.

Indications for Singleton Late-Preterm Births

Week	Total	Medical Indications^a		Obstetric Indications^a		Congenital Anomaly^a		Isolated Spontaneous labor		Total Indicated		No Recorded Indication
		N	%	N	%	N	%	N	%	N	%	N	%
34	50 717	7650	15.08	10 443	20.59	790	1.56	23 005	45.36	39 485	77.85	11 232	22.15
35	85 218	12 330	14.47	14 440	16.94	1135	1.33	41 246	48.40	65 945	77.38	19 273	22.62
36	156 692	22 056	14.08	21 566	13.76	1772	1.13	78 836	50.31	119 288	76.13	37 404	23.87
Total	292 627	42 036	14.37	46 449	15.87	3697	1.26	143 087	48.90	224 718	76.79	67 909	23.21

These categories are not mutually exclusive; the same patient may be represented in >1 category.