TABLE 3.
Summary Statistics and Analysis of Variance and χ2 Comparison of Baseline Demographics by Glucose Category
| Demographics and Confounding Variables | Glucose Groups | P | |||
|---|---|---|---|---|---|
| ≤35, n = 153 | 36–40, n = 126 | 41–45, n = 182 | 46–180, n = 282 | ||
| Site, n (%) | <.0001 | ||||
| Little Rock, Arkansas | 22 (14.4) | 14 (11.1) | 23 (12.6) | 59 (20.9) | |
| Bronx, New York | 26 (17.0) | 9 (7.1) | 9 (4.9) | 63 (22.3) | |
| Boston, Massachusetts | 29 (19.0) | 8 (6.3) | 36 (19.8) | 31 (11.0) | |
| Miami, Florida | 8 (5.2) | 3 (2.4) | 38 (20.9) | 31 (11.0) | |
| Philadelphia, Pennsylvania | 13 (8.5) | 8 (6.3) | 6 (3.3) | 25 (8.9) | |
| Dallas, Texas | 23 (15) | 80 (63.5) | 8 (4.4) | 19 (6.7) | |
| Seattle, Washington | 2 (1.3) | 1 (0.8) | 3 (1.6) | 43 (15.2) | |
| New Haven, Connecticut | 30 (19.6) | 3 (2.4) | 59 (32.4) | 11 (3.9) | |
| Home total score at 12 mo, mean (SD) | 33.2 (6.0) | 32.5 (5.1) | 34.0 (7.0) | 33.4 (5.9) | .29 |
| Maternal preconception weight, mean (SD) | 133.1 (28.7) | 131.2 (32.9) | 133.0 (28.8) | 128.8 (29.4) | .38 |
| Treatment group, n (%) | .50 | ||||
| Follow-up | 95 (62.1) | 77 (61.1) | 120 (65.9) | 166 (58.9) | |
| Intervention | 58 (37.9) | 49 (38.9) | 62 (34.1) | 116 (41.1) | |
| Birth weight group, n (%) | .22 | ||||
| High | 37 (24.2) | 37 (29.4) | 61 (33.5) | 74 (26.2) | |
| Low | 116 (75.8) | 89 (70.6) | 121 (66.5) | 208 (73.8) | |
| Maternal education, n (%) | <.0001 | ||||
| <9th grade | 7 (4.6) | 10 (7.9) | 6 (3.3) | 11 (3.9) | |
| 9th–12th grade | 49 (32.0) | 62 (49.2) | 51 (28.0) | 112 (39.7) | |
| High school graduate | 45 (29.4) | 38 (30.2) | 44 (24.2) | 84 (29.8) | |
| Completed some college | 35 (22.9) | 10 (7.9) | 45 (24.7) | 48 (17.0) | |
| College degree or more | 17 (11.1) | 6 (4.8) | 36 (19.8) | 27 (9.6) | |
| Maternal race, n (%) | .007 | ||||
| White | 52 (34.0) | 23 (18.3) | 66 (36.3) | 94 (33.3) | |
| Black | 78 (51.0) | 88 (69.8) | 95 (52.2) | 141 (50.0) | |
| Hispanic | 19 (12.4) | 15 (11.9) | 15 (8.2) | 37 (13.1) | |
| Others/Unknown | 4 (2.6) | 0 | 6 (3.3) | 10 (3.5) | |
| Infant sex, n (%) | .75 | ||||
| Boys | 79 (51.6) | 57 (45.2) | 89 (48.9) | 141 (50.0) | |
| Girls | 74 (48.4) | 69 (54.8) | 93 (51.1) | 141 (50.0) | |
| Gestational age, wk, mean (SD) | 32.1 (2.9) | 32.8 (2.8) | 33.1 (2.5) | 32.5 (2.7) | .008 |
| Birth weight, kg, mean (SD) | 1.62 (0.5) | 1.73 (0.4) | 1.79 (0.4) | 1.7 (0.5) | .007 |
| Neonatal Health Index, mean (SD) | 97.5 (16.7) | 98.8 (16.0) | 100.2 (16.6) | 98.6 (16.0) | .50 |
P values correspond to χ2 test for categorical variables and 1-way analysis of variance for continuous variables.