Table 1.

Demographics and Maternal Medical History

	2005–2007 (N = 5,283)	2008 (N = 1,934)	2009 (N = 1,809)	2010 (N = 1,783)	2011 (N = 1,773)	2012 (N = 1,835)	2013 (N = 1,924)	2014 (N = 1,980)	2015 (N = 2,106)
Age at delivery (years)	30.8 + 5.4	30.7 ± 5.4	30.8 ± 5.2	30.8 ± 5.3	30.9 ± 5.2	30.8 ± 5.1	31.2 ± 5.0	31.1 ± 5.0	31.3 ± 4.7
Race/ethnicity
Asian	798 (15.1)	317 (16.4)	279 (15.4)	276 (15.5)	250 (14.1)	310 (16.9)	302 (15.7)	352 (17.8)	299 (14.2)
Black	557 (10.5)	218 (11.3)	197 (10.9)	188 (10.5)	170 (9.6)	186 (10.1)	147 (7.6)	191 (9.6)	183 (8.7)
Hispanic	206 (3.9)	77 (4.0)	84 (4.6)	70 (3.9)	80 (4.5)	63 (3.4)	81 (4.2)	80 (4.0)	75 (3.6)
White	3,163 (59.9)	1,117 (57.8)	952 (52.6)	956 (53.6)	972 (54.8)	885 (48.2)	938 (48.8)	921 (46.5)	842 (40.0)
Other/Unknown	559 (10.6)	205 (10.6)	297 (16.4)	293 (16.4)	301 (17.0)	391 (21.3)	456 (23.7)	436 (22.0)	707 (33.6)
Marital Status
Single	973 (18.4)	418 (21.6)	423 (23.4)	408 (22.9)	484 (27.3)	566 (30.8)	667 (34.7)	834 (42.1)	774 (36.8)
Married	4,310 (81.6)	1,516 (78.4)	1,386 (76.6)	1,375 (77.1)	1,289 (72.7)	1,269 (69.2)	1,257 (65.3)	1,146 (57.9)	1,332 (63.2)
Primary Insurance
Private	4,364 (82.6)	1,601 (82.8)	1,486 (82.1)	1,459 (81.8)	1,492 (84.2)	1,493 (81.4)	1,563 (81.2)	1,595 (80.6)	1,770 (84.0)
Public (Medicaid)	919 (17.4)	333 (17.2)	323 (17.9)	324 (18.2)	281 (15.8)	342 (18.6)	361 (18.8)	385 (19.4)	336 (16.0)
Maternal medical history
Gestational Hypertension	461 (8.7)	124 (6.4)	121 (6.7)	132 (7.4)	128 (7.2)	125 (6.8)	137 (7.1)	157 (7.9)	187 (8.9)
Preeclapmsia/Eclampsia	135 (2.6)	47 (2.4)	40 (2.2)	56 (3.1)	72 (4.1)	69 (3.8)	87 (4.5)	69 (3.5)	113 (5.4)
Gestational Diabetes	182 (3.4)	68 (3.5)	75 (4.1)	63 (3.5)	89 (5.0)	101 (5.5)	115 (6.0)	86 (4.3)	93 (4.4)

Data are presented as mean ± standard deviation or n (%).