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. Author manuscript; available in PMC: 2024 Apr 1.
Published in final edited form as: Am J Obstet Gynecol MFM. 2023 Jan 20;5(4):100874. doi: 10.1016/j.ajogmf.2023.100874

Table 1.

Patient demographics and obstetrical outcomes by BMI category at delivery

Reference (REF) Obese (OB) Morbidly Obese (MO) Super Morbidly Obese (SMO) P-value for trend*
N=26,081 N=21,704 N=3,787 N=590
Maternal Age (yrs) 27.9 ± 6.3 28.1 ± 6.0 27.9 ± 5.9 27.9 ± 5.8 <.001
Age ≥ 35 yrs 4356 (16.7) 3258 (15.0) 523 (13.8) 83 (14.1) <.001
Nulliparous 9944 (38.1) 8419 (38.8) 1456 (38.5) 230 (39.0) 0.24
Race/ethnicity <.001**
 NH White 10657 (40.9) 9383 (43.2) 1556 (41.1) 194(32.9)
 NH Black 6449 (24.7) 4701 (21.7) 1252 (33.1) 262 (44.4)
 NH Asian 739 (2.8) 668 (3.1) 32 (0.8) 6 (1.0)
 NH Native Hawaiian 49 (0.2) 48 (0.2) 11 (0.3) 2 (0.3)
 NH American Indian 59 (0.2) 38 (0.2) 10 (0.3) 1 (0.2)
 Hispanic 6730 (25.8) 5854 (27.0) 799 (21.1) 101 (17.1)
 ND 1506 (5.8) 1098 (5.1) 148 (3.9) 27 (4.6)
Pregestational diabetes 326 (1.3) 182 (0.8) 80 (2.1) 26 (4.4) .001
Chronic hypertension 602 (2.3) 342 (1.6) 176 (4.7) 61 (10.3) <.001
Cigarette use 3110 (11.9) 1906 (8.8) 470 (12.4) 76 (12.9) <.001
Alcohol Use 901 (3.5) 605 (2.8) 109 (2.9) 18 (3.1) <.001
Drug Use 1250 (4.8) 637 (2.9) 139 (3.7) 25 (4.2) <.001
Government Insurance 11397 (43.7) 8542 (39.4) 1880 (49.6) 347 (58.8) 0.05
Preeclampsia/eclampsia 1055 (4.1) 1362 (6.3) 445 (11.8) 95 (16.1) < .001
Cesarean delivery 7197 (27.6) 7191 (33.1) 1711 (45.2) 311 (52.7) < .001

Data presented are mean ± SD or n (%)

*

Cochran-Armitage or Jonckheere-Terpstra tests for trend.

**

NH Black versus all other race/ethnicities combined.

NH=non-Hispanic; ND= not documented; ART=assisted reproductive technology

Missing: alcohol use (51), drug use (74), ART (25)