Table 2.
Maternal and infant characteristics according to percentiles of cord blood leptin (ng/mL) and adiponectin (μg/mL) a
| Leptin (Row%) | Adiponectin (Row%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Percentiles | Percentiles | ||||||||
| Characteristic | N | ≤10th | 10th-90th | ≥90th | p-value | ≤10th | 10th-90th | ≥90th | p-value |
| Age (yr) | |||||||||
| ≤24 | 53 | 11.3 | 81.1 | 7.6 | 0.50 | 9.4 | 81.1 | 9.4 | 0.92 |
| 25-29 | 265 | 9.8 | 77.7 | 12.5 | 10.6 | 77.7 | 11.7 | ||
| 30-34 | 448 | 7.8 | 83.4 | 8.7 | 9.4 | 81.3 | 9.4 | ||
| ≥35 | 472 | 11.7 | 78.0 | 10.4 | 9.8 | 80.1 | 10.2 | ||
| BMI | |||||||||
| Underweight (<18.5) | 27 | 22.2 | 70.4 | 7.4 | <0.01 | 22.2 | 70.4 | 7.4 | 0.22 |
| Normal (18.5 to 24.9) | 707 | 12.8 | 80.0 | 7.5 | 11.0 | 78.5 | 10.5 | ||
| Overweight (25 to 29.9) | 266 | 3.8 | 83.8 | 12.4 | 8.3 | 80.8 | 10.9 | ||
| Obese (≥30) | 170 | 5.9 | 75.9 | 18.2 | 7.7 | 83.5 | 8.8 | ||
| Parity | |||||||||
| Nulliparous | 520 | 9.0 | 77.1 | 13.9 | 0.01 | 9.0 | 79.6 | 11.4 | 0.17 |
| Parous | 715 | 10.5 | 82.1 | 7.4 | 10.6 | 80.0 | 9.4 | ||
| Education | |||||||||
| High school diploma or less | 105 | 10.5 | 78.1 | 11.4 | 0.51 | 10.5 | 80.1 | 8.6 | 0.10 |
| Some college, or trade school | 351 | 10.3 | 77.2 | 12.5 | 11.7 | 79.2 | 9.1 | ||
| Undergraduate univ. degree | 470 | 9.8 | 81.7 | 8.5 | 9.2 | 80.9 | 10.0 | ||
| Graduate university degree | 309 | 9.4 | 81.2 | 9.4 | 9.1 | 78.6 | 12.3 | ||
| Household income ($CAD) | |||||||||
| ≤30,000 | 87 | 12.6 | 75.9 | 11.5 | 0.50 | 12.6 | 79.3 | 8.1 | 0.27 |
| 30,001-50,000 | 114 | 5.3 | 83.3 | 11.4 | 7.9 | 84.2 | 7.9 | ||
| 50,001-100,000 | 506 | 10.7 | 77.9 | 11.5 | 11.1 | 77.3 | 11.7 | ||
| ≥100,000 | 481 | 9.2 | 82.3 | 8.5 | 8.1 | 82.1 | 9.8 | ||
| Ethnicity | |||||||||
| Caucasian | 1064 | 9.6 | 80.5 | 10.0 | 0.80 | 10.3 | 78.8 | 10.9 | 0.53 |
| Not Caucasian | 173 | 11.6 | 77.58 | 11.0 | 7.5 | 86.7 | 5.8 | ||
| Maternal smoking | |||||||||
| Never or quit before pregnancy | 1091 | 9.8 | 80.8 | 9.4 | 0.27 | 9.9 | 80.0 | 10.2 | 0.74 |
| Quit when knew pregnant | 86 | 9.3 | 75.6 | 15.1 | 11.6 | 80.2 | 8.1 | ||
| Current smoker | 60 | 11.7 | 73.3 | 15.3 | 8.3 | 78.3 | 13.3 | ||
| Infant sex | |||||||||
| Male | 677 | 10.1 | 79.6 | 10.3 | 0.94 | 9.5 | 81.7 | 8.8 | 0.40 |
| Female | 586 | 9.6 | 80.5 | 9.9 | 10.4 | 77.7 | 11.8 | ||
| Cord blood adiponectin (μg/ml) | |||||||||
| ≤10% | 123 | 43.1 | 50.4 | 6.5 | <0.01 | -- | -- | -- | -- |
| 10-90% | 988 | 6.7 | 84.3 | 9.0 | |||||
| ≥90% | 126 | 2.4 | 75.4 | 22.2 | |||||
| Cord blood leptin (ng/mL) | |||||||||
| ≤10% | 122 | -- | -- | -- | -- | 43.4 | 54.1 | 2.5 | <0.01 |
| <90% | 990 | 6.3 | 84.4 | 9.6 | |||||
| ≥90% | 125 | 6.4 | 71.2 | 22.4 | |||||
aDue to missing covariate data, subgroup totals may not sum to the total sample population.