Table 2 Linear regression models predicting for composite KBIT score at 4.5 years of age
` | Predictors | ß | 95% CI for B | p-value |
|---|---|---|---|---|
Model 1 (Maternal and pregnancy related variables) | Maternal education (Ref: High School and below) | 6.51 | 3.41 to 9.61 | < 0.001 |
Antenatal maternal mood | −4.81 | −9.74 to 0.12 | 0.06 | |
Smoking during pregnancy | −4.38 | −7.96 to −0.80 | 0.02 | |
Birth weight | 0.27 | −0.85 to 1.40 | 0.63 | |
Birth Order | −1.90 | −3.26 to −0.53 | 0.07 | |
Gestational Age (weeks) | −0.30 | −1.31 to 0.71 | 0.56 | |
Model 2 (child- related variables) | Female gender | 1.01 | −2.97 to 5.16 | 0.60 |
TV viewing at 12 months (hours per day) | −0.36 | −3.69 to −1.29 | < 0.001 | |
Bayley Cognitive score | 0.23 | 0.07 to 0.40 | 0.006 | |
Bedtime reading | 6.61 | 2.11 to 11.11 | 0.004 | |
Presence of Breastfeeding | 3.04 | −2.40 to 8.48 | 0.27 | |
Final adjusted model | Maternal Education | 4.78 | 0.21 to 9.35 | 0.04 |
Antenatal maternal mood | −4.76 | −12.79 to 3.27 | 0.25 | |
Smoking during pregnancy | −4.60 | −10.15 to 0.96 | 0.10 | |
Birth order | −2.27 | −4.42 to −0.12 | 0.04 | |
TV viewing at 12 months (hours per day) | −1.55 | −2.81 to − 0.28 | 0.02 | |
Bayley cognitive score | 0.15 | −0.03 to 0.33 | 0.10 | |
Bedtime reading | 6.87 | 2.25 to 11.48 | 0.04 |