Table 1.
Maternal, gestational and neonatal characteristics by tertile of pregnancy weight gain.
| Tertile of Pregnancy Weight Gain | ||||
|---|---|---|---|---|
| 1
0–14.6 kg n=24 |
2
14.7–18.6 n=27 |
3
18.7 + n=24 |
p value* | |
|
| ||||
| Pre-pregnancy weight (kg) | 73.5
(50.0–118.8) |
63.3
(40.8–99.7) |
69.6
(47.6–125.0) |
0.12 |
|
| ||||
| Pregnancy weight (last measurement) (kg) | 82.7
(58.9–132.4) |
79.9
(57.6–117.6) |
95.2
(68.9–145.2) |
<0.0001 |
|
| ||||
| Weight gain as % of pre-pregnancy weight | 13.8
(0.3–24.8) |
27.4
(17.5–44.4) |
38.8
(16.2–73.7) |
<0.0001 |
|
| ||||
| Maternal age (y) | 29.0
(18–41) |
24.4
(15–35) |
26.5
(18–37) |
0.02 |
|
| ||||
| Gestational length (weeks) | 37.0
(31–40) |
37.7
(34–40) |
37.3
(32–41) |
0.59 |
|
| ||||
| # of previous live births | ||||
| 0 | 16 (66.7%) | 21 (77.8%) | 17 (70.8%) | 0.75 |
| 1+ | 8 (33.3%) | 6 (22.2%) | 7 (29.2%) | |
|
| ||||
| Race | ||||
| Caucasian | 13 (54.2%) | 12 (44.4%) | 16 (66.7%) | 0.48 |
| African-American | 10 (41.7%) | 14 (51.9%) | 8 (33.3%) | |
| Hispanic | 1 (4.2%) | 0 | 0 | |
| Asian | 0 | 1 (3.7%) | 0 | |
|
| ||||
| Gender of offspring | ||||
| Female | 9 (37.5%) | 12 (44.4%) | 11 (45.8%) | 0.56 |
| Male | 15 (62.5%) | 15 (55.5) | 13 (54.2%) | |
|
| ||||
| Birth weight (g) | 3158
(1278–4082) |
3196
(2210–3954) |
3289
(1648–3888) |
0.65 |
Continuous variables listed as mean (range); categorical variables listed as number (percentages).
*
Continuous variables evaluated by ANOVA, p value refers to any differences among categories; categorical variables evaluated by χ2 test.