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Table 3 Characteristics of mothers and children at 6, 12, 18 months with PEDS outcome data collection at each follow-up compared to those who did not have outcome data collected (participant vs non-participant)

From: Who is our cohort: recruitment, representativeness, baseline risk and retention in the “Watch Me Grow” study?

Characteristic

Baseline- birth N = 2013 n (%)

6 months with PEDS data N = 792 n (%)

12 months with PEDS data N = 649 n (%)

18 months with PEDS data N = 565 n (%)

Child Level

    

Male gender

964 (48.0)

344 (46.5)

281 (46.1)

244 (44.9)

Low birth weight (<2500 g)

151 (7.5)

49 (6.6)

45 (7.4)

38 (7.0)

Preterm (<37 weeks)

180 (9)

57 (7.7)

57 (9.3)

51 (9.4)

Admitted SCHN/NICU

301 (15)

102 (13.8)

94 (15.4)

86 (15.8)

Parents

    

Maternal age < 20 years

48 (2.4)

10 (1.4) p = .02

9 (1.5)

8 (1.5)

Maternal smoking in pregnancy

88 (5.2)

23 (3.7) = 0.03

15 (2.9) p = .005

11 (2.4) p = .001

Maternal alcohol during pregnancy

23 (1.3)

7 (1.0)

8 (1.4)

6 (1.2)

Antenatal health problems

640 (32.4)

230 (31.2)

196 (32.5)

182 (33.8)

Mother experienced child abuse as a child

128 (7.5)

45 (7.0)

41 (7.7)

34 (7.0)

Poor maternal mental health (EDS >12)

121 (7.3)

36 (6.0)

25 (5.1)

29 (6.5)

Mother did not complete high school

316 (18.5)

110 (14.5) p < 001

90 (14.4) p = .001

81 (14.6) p = .005

Family

    

English not primary language on antenatal visit

463 (23.0)

167 (22.6)

147 (24.1)

128 (23.6)

Mother Australian nationality

846 (42.5)

323 (43.6)

271 (44.4)

233 (42.9)

Mother Middle Eastern or Asian nationality

848 (42.2)

307 (41.5)

249 (40.8)

226 (41.6)

Annual income at birth < AUD25001

277 (17.6)

94 (13.2) p < 001

75 (12.9) p < 001

60 (11.8) p < 001

Mother has no partner at antenatal check

74 (4.0)

16 (2.4) p = .004

14 (2.5) p = .02

14 (2.8)

Hit, slapped, hurt by partner in last year

19 (1.1)

7 (1.1)

6 (1.1)

4 (0.8)

A child already in out-of-home care

42 (2.7)

9 (1.4) p = .01

3 (0.6) p < 001

2 (0.4) p < 001

Neighbourhood

    

SEIFA decile 1

872 (44.2)

274 (37.3) p < 001

221 (36.5) p < 001

200 (37.0) p < 001