Table 2 Descriptive data for predictors of maternal and child language production

Maternal age at recruitment (years)

Mean (SD)

17.91 (1.22)

Range

13.82–19.98

Language spoken in the home N (%)

English

467 (98.1)

Other

9 (1.9)

NEET status at 24 months N (%)

Yes

307 (64.5)

No

169 (35.5)

Relationship with child’s father at 24 months⁺ N (%)

Married

15 (3.2)

Separated/divorced

25 (5.3)

Closely involved/boyfriend

208 (43.7)

Just friends

91 (19.1)

Not in any relationship

136 (28.6)

Number of people living in the home at 24 months

Mean (SD)

1.03 (1.31)

Range

0–7

IMD score at baseline

Mean (SD)

38.52 (17.96)

Range

3.15–82.00

Maternal health and wellbeing

Psychological distress at 24 months

 Mean (SD)

17.10 (1.27)

 Range

10–43

Postnatal depression at 6 months

 Mean (SD)

6.71 (5.05)

 Range

0–24

Social support at 24 months

 Mean (SD)

84.41 (17.74)

 Range

11.84–100

Problem alcohol and drug use at 24 months

 Mean (SD)

0.36 (0.80)

 Range

0–5

Pregnancy, birth, and parenting behaviour

Gestation at birth (weeks)

 Mean (SD)

39.31 (1.89)

 Range

27–42

Birthweight (grams)

 Mean (SD)

3284.53 (534.11)

 Range

993–4700

Antenatal smoking (number of cigarettes) in 2nd & 3rd trimester

 Mean (SD)

4.61 (5.94)

 Range

0–24.07

Duration breastfeeding (days)

 Mean (SD)

20.81 (44.64)

 Range

0–194