Table 2 Characteristics of 1018 mother–child pairs studied, according to the DQI across early childhood

From: Diet quality across early childhood and adiposity at 6 years: the Southampton Women’s Survey

 

DQI across early childhood

 

DQI: 0 (n=107)

DQI: 1–3 (n=339)

DQI: 4–6 (n=378)

DQI: 7–8 (n=194)

P-value

Mother

 Age at child’s birth (years)

29.8 (4.3)

30.0 (3.9)

30.3 (3.7)

31.5 (3.2)

<0.001

 Height (cm)

163.1 (5.6)

163.3 (6.5)

163.7 (6.6)

164.5 (6.6)

0.08

 Prepregnancy BMI (kg m−2)

24.4 (22.2–28.7)

25.0 (22.8–27.7)

24.1 (22.2–27.0)

23.8 (21.6–26.7)

0.003

 Degree qualification or above (%)

4 (3.7)

37 (11.0)

102 (27.1)

95 (49.2)

<0.001

 Smoked in pregnancy (%)

33 (30.8)

66 (19.5)

35 (9.3)

7 (3.6)

<0.001

 Serum 25(OH) D concentration (nmol l−1)a

58.2 (39.0–81.0)

57.0 (39.0–81.9)

65.0 (42.0–92.0)

65.0 (47.4–91.0)

<0.001

 Plasma n-6 PUFA concentration (μg ml−1)a

528 (405–623)

486 (408–616)

525 (408–627)

486 (368–600)

0.81

 Gestational weight gain, n (%)

    

0.13

Inadequate

23 (23.2)

66 (20.8)

66 (19.1)

51 (27.7)

 

Adequate

24 (24.2)

92 (29.0)

109 (31.5)

62 (33.7)

 

Excessive

52 (52.5)

159 (50.2)

171 (49.4)

71 (38.6)

 

Child

 Sex, boys (%)

59 (55.1)

173 (51.0)

195 (51.6)

102 (52.6)

0.86

 Height at 6 years (cm)

118.5 (4.8)

119.0 (5.7)

119.6 (5.0)

119.4 (4.8)

0.13

 Weight at 6 years (kg)

22.0 (19.9–24.5)

22.5 (20.4–25.1)

22.6 (20.6–25.1)

22.1 (20.7–23.7)

0.43

 Birthweight (g)

3406 (464)

3523 (504)

3554 (451)

3510 (470)

0.10

 Average time moving at 4 years (h per day)

3.0 (2.0–4.0)

2.0 (1.5–4.0)

2.0 (1.5–3.0)

2.0 (1.0–3.0)

<0.001

 Time spending TV at 4 years (h per day)

2.5 (1.5–3.5)

2.5 (1.5–2.5)

1.5 (1.5–2.5)

1.5 (1.5–2.5)

<0.001

 Time sleeping per night at 4 years (h per day)

11.3 (11.0–12.0)

11.5 (11.0–11.5)

11.5 (11.0–12.0)

11.5 (11.0–11.5)

0.16

 Average time napping at 4 years (h per day)

1.0 (0.0–1.5)

0.5 (0.0–1.0)

0.5 (0.0–0.5)

0.5 (0.0–0.8)

0.21

 Duration of breastfeeding4 months (%)

10 (9.4)

118 (35.3)

182 (48.9)

127 (67.6)

<0.001

  1. Abbreviations: 25(OH) D, 25-hydroxyvitamin D; BMI, body mass index; DQI, diet quality index; PUFA, polyunsaturated fatty acid.
  2. Data are presented as mean (s.d.), median (interquartile range) or n (percentage).
  3. aData measured in late pregnancy.