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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: J Pediatr Adolesc Gynecol. 2015 Aug 29;29(2):130–136. doi: 10.1016/j.jpag.2015.08.006

Table 1.

Demographic data by maternal age.

Younger Adolescents Older Adolescents Young Adults P-valuee
Age ≤ 15.9 (n= 1,189) Age 16–19.9 (n= 14,703) Age 20–24.9 (n= 27,645)
Race/ethnicity <.01
 Non-Hispanic white 185 (15.56) 4,225 (28.74) 13,648 (49.37)
 Non-Hispanic black 600 (50.46) 5,819 (39.58) 6,552 (23.70)
 Hispanic 314 (26.41) 3,448 (23.45) 4,599 (16.64)
 Asian/Pacific islander 4 (0.34) 141 (0.96) 839 (3.03)
 Other, multiracial, unknown 86 (7.23) 1,070 (7.28) 2,007 (7.26)
Marital status <.01
 Married 25 (2.10) 1,482 (10.08) 12,555 (45.42)
 Not married (divorced/widowed) 1 (0.08) 24 (0.16) 156 (0.56)
 Not married (single) 1,132 (95.21) 12,743 (86.67) 14,211 (51.41)
 Unknown 31 (2.61) 454 (3.09) 723 (2.62)
BMI (kg/m2) at admissiona <.01
 Underweight 83 (6.98) 837 (5.69) 1,340 (4.85)
 Normal 474 (39.87) 5,630 (38.29) 10,897 (39.42)
 Overweight >=25, <30 144 (12.11) 1,891 (12.86) 3,757 (13.59)
 Obese >=30 55 (4.63) 1,128 (7.67) 2,854 (10.32)
 Unknown/missing 433 (36.42) 5,217 (35.48) 8,797 (31.82)
Health insurance <.01
 Private 304 (25.57) 4,541 (30.88) 14,037 (50.78)
 Public or self-pay 746 (62.74) 8,704 (59.20) 11,237 (40.65)
 Other, unknown 139 (11.69) 1,458 (9.92) 2,371 (8.58)
Smoking 50 (4.21) 1,157 (7.87) 1,837 (6.64) <.01
Alcohol 12 (1.01) 267 (1.82) 491 (1.78) 0.13
Recreational drug use 19 (1.80) 370 (2.85) 500 (1.98) <.01
Any maternal diseaseb 186 (15.64) 2,276 (15.48) 23,223 (16.00) 0.38
Any Diabetes c 12 (1.01) 331 (2.25) 986 (3.57) <.01
 Preexisting diabetes 4 (0.34) 138 (0.94) 315 (1.14) <.01
 Gestational diabetes 8 (0.67) 193 (1.31) 671 (2.43) <.01
Any hypertensive diseased 168 (14.13) 1,940 (13.19) 3,512 (12.70) 0.16
 Gestational hypertension 73 (6.14) 809 (5.50) 1,501 (5.43) 0.56
 Chronic hypertension 25 (2.10) 367 (2.50) 612 (2.21) 0.16

Numbers are n (%).

a

Maternal BMI (body mass index) was categorized as underweight for BMI <18.5 kg/m2, normal weight for BMI 18.5 to 24.9 kg/m2, overweight for BMI 25.0 to 29.9 kg/m2, obese for BMI 30.0 to 34.9 kg/m2, and morbidly obese for BMI >=35.0 kg/m2

b

Any maternal disease included any diabetes, any hypertensive disease, heart and renal disease.

c

Any diabetes included preexisting diabetes and gestational diabetes

d

Any hypertensive disease included chronic hypertension, gestational hypertension, preeclampsia, HELLP syndromeeclampsia, or unspecified hypertension.

e

P-value from Chi-square test