Table 1.

Comparison of Nondiabetic Women with Those with Gestational Diabetes

VariableNondiabetics (n = 396)Gestational Diabetics (n = 29)P
Age (years)24.1 ± 4.927.7 ± 5.2<.01
Gestation (weeks)
    First analysis8.5 ± 2.38.4 ± 2.30.79
    Second analysis26.8 ± 2.625.0 ± 4.5.03
Parity (n [%])0.06
    0142 (35.9)12 (41.4)
    1115 (29.0)4 (13.8)
    290 (22.7)5 (17.2)
    3 or more49 (12.4)8 (27.6)
Race (n [%])0.87
    Caucasian219 (55.6)14 (48.3)
    African-American171 (43.4)14 (48.3)
    Other4 (1.0)1 (3.4)
Education (n [%])0.72
    <High school130 (32.8)8 (27.6)
    High school154 (38.9)13 (44.8)
    Some college86 (21.7)5 (17.2)
    College graduate22 (5.6)3 (10.3)
    Graduate school4 (1.0)0 (0.0)
Smoker (n [%])0.93
    Yes229 (57.8)17 (58.6)
    No167 (42.2)12 (41.4)
History of gestational diabetes (n [%])<.01
    Yes12 (3.0)7 (24.0)
    No384 (97.0)22 (76.0)
Family history/gestational diabetes (n [%]).09
    Yes44 (11.3)6 (22.2)
    No346 (88.7)21 (77.8)
Chromium level (ng/mL)
    Initial (8 weeks’ gestation)0.15 (0.06)0.14 (0.03).28
    Follow-up (26 weeks’ gestation)0.14 (0.06)0.14 (0.04).82