Table 4.
Regression Results For Maternal Alcohol Use and Infant Gross Motor Outcomes (Pooled Data, N = 1324)
| Unadjusted b (95%CI) | Adjusted for maternala b (95%CI) | Adjusted for maternalb b (95%CI) | Adjusted for maternalc b (95%CI) | Adjusted for maternal + infantd b (95%CI) | |
|---|---|---|---|---|---|
| Trimester 1a (first 6 weeks) (n = 1324) | |||||
| Abstinent | Ref | Ref | Ref | Ref | Ref |
| Low (≤7 drinks per week, up to 2 per occasion) | −0.29 (−0.68–0.11) | −0.35 (−0.75–0.05) | −0.35 (−0.74–0.05) | −0.37 (−0.78–0.03) | −0.39 (−0.79–0.01) |
| Moderate (≤7 drinks per week, > 2 to ≤4 per occasion) | − 0.49 (−1.24–0.27) | − 0.64 (−1.39–0.12) | − 0.63 (−1.39–0.12) | − 0.62 (−1.38–0.14) | − 0.66 (−1.42–0.1) |
| Binge (≤7 drinks per week, > 4 per occasion) | − 0.23 (− 0.66–0.19) | −0.32 (− 0.75–0.12) | −0.31 (− 0.75–0.13) | −0.29 (− 0.74–0.15) | −0.3 (− 0.74–0.15) |
| Heavy (> 7 drinks per week, weekly or more) | 0.02 (− 0.44–0.48) | − 0.04 (− 0.5–0.42) | − 0.02 (− 0.5–0.45) | −0.02 (− 0.5–0.46) | −0.06 (− 0.54–0.42) |
| Trimester 1b* (second 6 weeks) (n = 1227) | |||||
| Abstinent | Ref | Ref | Ref | Ref | Ref |
| Low (≤7 drinks per week, up to 2 per occasion) | −0.23 (− 0.63–0.17) | −0.31 (− 0.71–0.09) | −0.3 (− 0.71–0.1) | −0.31 (− 0.72–0.1) | −0.32 (− 0.73–0.09) |
| Trimester 2* (n = 1259) | |||||
| Abstinent | Ref | Ref | Ref | Ref | Ref |
| Low (≤7 drinks per week, up to 2 per occasion) | −0.02 (− 0.35–0.32) | 0.03 (− 0.32–0.37) | 0.03 (− 0.32–0.38) | 0.02 (− 0.33–0.37) | − 0.01 (− 0.36–0.34) |
| Trimester 3* (n = 1270) | |||||
| Abstinent | Ref | Ref | Ref | Ref | Ref |
| Low (≤7 drinks per week, up to 2 per occasion) | −0.12 (− 0.46–0.21) | −0.03 (− 0.37–0.31) | −0.03 (− 0.38–0.31) | −0.04 (− 0.4–0.31) | −0.08 (− 0.43–0.28) |
Note: Standard drink = 10 g of alcohol. *Moderate, Binge and Heavy categories were not assessed after T1a due to infrequent reporting of these drinking patterns in the sample
aAdjusted for Mother-related background variables (Age at birth, Education, SEIFA, State of residence, Country of birth, Single parent household, Aboriginal and Torres Strait Islander status, Native language)
bAdjusted for Mother-related background variables + Substance use variables (Pregnancy smoked, Pregnancy illicit drugs)
cAdjusted for Mother-related background variables + Physical and psychological variables (Pregnancy Anxiety, IQ, Parity, BMI)
dAdjusted for all previous Mother-related variables + Infant-related variables (Gestational age)