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. Author manuscript; available in PMC: 2023 May 1.
Published in final edited form as: Am J Obstet Gynecol MFM. 2022 Mar 7;4(3):100609. doi: 10.1016/j.ajogmf.2022.100609

TABLE 1:

Maternal demographic and obstetrical characteristics by timing of gestational diabetes mellitus diagnosis

Demographic Early GDM (n=30) Routine Screening (n=89) P value
Maternal age (y) 30.2±5.8 28.9±5.9 .29
Race/ethnicity
 Non-Hispanic White 7 (23) 6 (7) .03
 Non-Hispanic Black 16 (53) 40 (45)
 Hispanic 7 (23) 40 (45)
 Other 0 3 (3)
BMI at randomization (kg/m2) 35.6 (33.0–48.0) 36.0 (32.8–39.6) .49
Insurance type
 Private 1 (3) 1 (1) .17
 Medicaid 23 (77) 55 (63)
 None 6 (20) 31 (34)
Married 10 (33) 30 (34) .97
High school education or greater 20 (69) 54 (66) .76
Nulliparous 14 (47) 29 (33) .17
Tobacco use during pregnancy 11 (37) 7 (8) <.001
Alcohol use during pregnancy 6 (20) 6 (7) .07
Illicit drug use during pregnancy 2 (7) 5 (6) >.99
Chronic hypertensiona 8 (27) 10 (11) .07
Hemoglobin A1c (%) at 14–20 wk 5.6 (5.1–6.1) 5.5 (5.2–5.8) .25
Hemoglobin A1c (%) at 24–28 wk 5.3 (4.9–5.8) 5.7 (5.3–6.0) .08
GTT results at time of GDM diagnosis
 Fasting glucose 105 (97–121) 101 (95–109) .11
 1 h glucose 191 (186–213) 194 (181–205) .84
 2 h glucose 178 (162–198) 169 (157–186) .22
 3 h glucose 117 (90–143) 140 (125–149) .14
GDM type .33
 A1 15 (50) 53 (60)
 A2 15 (50) 35 (40)

BMI, body mass index; GDM, gestational diabetes mellitus; GTT, glucose tolerance test; HELLP, hemolysis, elevated liver enzymes and low platelets.

a

Pregnancy-induced hypertension includes gestational hypertension, preeclampsia, HELLP or eclampsia at time of hospital admission for delivery.

Champion. Early gestational diabetes mellitus and postpartum glucose intolerance. Am J Obstet Gynecol MFM 2022.