Table 2.
Antenatal complications, gestational weight gain, and other perinatal outcomes in CenteringPregnancy vs. traditional prenatal care
| Variable (n,% or mean ± SD) | CenteringPregnancy (n=2117) |
Traditional Prenatal Care (n=4234) |
P-value |
|---|---|---|---|
| Antenatal complications | |||
| Preeclampsia | 247 (12) | 438 (10) | 0.11 |
| Gestational diabetes | 82 (4) | 233 (6) | 0.005 |
| Gestational weight gain or loss (pounds) | |||
| Median and interquartile range | 30 (18–38) | 28 (20–40) | <0.001 |
| Weight loss (n,%) | 52 (2.5) | 104 (2.5) | 1.0 |
| 2009 IOM Gestational weight gain goals | <0.001 | ||
| Below | 429 (20) | 1114 (26) | |
| Met | 533 (25) | 1106 (26) | |
| Exceeded | 1155 (55) | 2014 (48) | |
| Gestational age at delivery (weeks)* | |||
| Mean ± SD | 38.9±1.7 | 38.8±1.6 | 0.03 |
| Preterm delivery | 150 (7) | 245 (5.8) | 0.04 |
| Year of delivery* | 0.99 | ||
| 2009 | 71 (3) | 140 (3) | |
| 2010 | 294 (14) | 581 (14) | |
| 2011 | 415 (20) | 830 (20) | |
| 2012 | 405 (19) | 816 (19) | |
| 2013 | 452 (21) | 885 (21) | |
| 2014 | 470 (22) | 956 (22) | |
| 2015 | 10 (<1) | 26 (<1) | |
| Delivery route | <0.001 | ||
| Vaginal (includes forceps/vacuum) | 1598 (75) | 2987 (70) | |
| Cesarean delivery | 519 (25) | 1247 (30) | |
| Birthweight (g) | 3250±523 | 3285±524 | 0.01 |
*
Matching criteria for control group included ± 2 weeks of delivery date
SD standard deviation
IOM Institute of Medicine