Table 3.
Multiple linear regression analysis of dependent variables Δ weight (0-1 year) and weight-for-length z-score, respectively.
| B | t | P | |
|---|---|---|---|
| Δ Weight (0-1 year) | |||
| Birth weight | −0.01 | −0.06 | 0.950 |
| Infant age at 1 year visit | 339.56 | 5.82 | <0.001 |
| Infant sex (female) | −648.43 | −4.76 | <0.001 |
| Infant ethnicity | 260.53 | 1.84 | 0.067 |
| Family history of diabetes | −62.29 | −0.45 | 0.651 |
| Maternal pregravid vigorous/sport index | −218.64 | −2.44 | 0.016 |
| Exclusive breastfeeding duration | −116.37 | −3.97 | <0.001 |
| R 2 = 33% | |||
| Weight-for-length z-score at 1 year | |||
| Birth weight | 0.00 | 3.50 | 0.001 |
| Infant age at 1 year visit | 0.12 | 2.00 | 0.047 |
| Infant sex (female) | 0.02 | 0.13 | 0.894 |
| Infant ethnicity | 0.20 | 1.41 | 0.160 |
| Family history of diabetes | −0.11 | −0.78 | 0.439 |
| Maternal prepregnancy BMI | 0.03 | 2.43 | 0.016 |
| Maternal pregravid vigorous/sport index | −0.20 | −2.17 | 0.031 |
| Exclusive breastfeeding duration | −0.08 | −2.59 | 0.010 |
| R 2 = 19% |
Parameters. (i) Forced: Birth weight, infant age at 1 year visit, infant sex, infant ethnicity (Caucasian versus non-Caucasian), family history of diabetes; (ii) forward stepwise method: socioeconomic status, maternal prepregnancy BMI, Maternal log ISOGTT, maternal GDM status during pregnancy (yes/no), maternal pregravid work index, maternal pregravid vigorous/sport index, maternal pre-gravid leisure index, exclusive breastfeeding duration, age of introduction to formula (at birth, before 6 months, after 6 months, never), age of introduction to cereal, and daily screen time.
GDM: gestational diabetes mellitus; ISOGTT: oral glucose tolerance testing for assessment of insulin sensitivity.