Skip to main content

Table 2 “Watch Me Grow” cohort representativeness of the postnatal ward and SWSLHD non-participants #proportions based on available data

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

Characteristic “Watch Me Grow” N = 2013 infants; N = 1976 mothers n (%) # Non participants (two postnatal wards) N = 5540 infants; N = 5371 mothers n (%) # Non participants (all South West Sydney) N = 12494 infants; N = 12208 mothers n (%) #
Child    
Male 964 (48.0) 2826 (51.2) p = .01 6431 (51.6) p = .002
Female 1047 (52.0) 2697 (48.8) 6024 (48.4)
Mean birth weight (g) 3291.6 (SD 590.7) 3281.2 (SD 618.9) 3349.4 (SD 565.3) p < .001
Low birth weight (<2500 g) 151 (7.5) 474 (8.6) 722 (5.8) p = .004
Mean gestational age (weeks) 38.8 (SD 2.0) 38.7 (SD 2.2) 38.9 (SD 1.9) p = .03
Preterm(<37 weeks) 180 (9.0) 498 (9.0) 860 (6.9) p = .009
Admitted SCHN/NICU 301 (15.0) 868 (15.8) 1423 (11.4) p < .001
Mother    
Mean maternal age (years) 30.1 (SD 5.5) 30.1 (SD 27.6) 29.7 (SD 18.8)
Maternal age < 20 years 48 (2.4) 115 (2.1) 321 (2.6)
Maternal smoking in pregnancy 87 (5.3) 265 (6.0) 661 (7.3) p = .005
Maternal alcohol during pregnancy 23 (1.3) 53 (1.1) 171 (1.6)
Antenatal health problems 621 (32.0) 1642 (33.8) 3068 (26.5) p < .001
Mother experienced child abuse as a child 126 (7.5) 256 (5.7) p = .008 795 (7.6)
Poor maternal mental health EDS >12 116 (7.1) 346 (7.7) 738 (7.1)
Family    
Primary language on antenatal visit 458 (23.2) 1427 (26.6) p = .003 2897 (23.8)
Mother Australian nationality 825 (41.7) 2283 (42.5) 6212 (50.9) p < .001
Mother Middle Eastern and Asian nationality 848 (42.2) 2262 (42.1) 4309 (35.3) p < .001
Mother has no partner at antenatal check 74 (4.0) 233 (4.9) 618 (5.7) p = .005
Hit, slapped, hurt by partner in last year 19 (1.1) 66 (1.4) 152 (1.4)
A child already in out-of-home care 41 (2.6) 124 (2.8) 317 (3.2)
Neighbourhood    
SEIFA decile 1 855 (44.2) 2417 (46.1) 4491 (37.5) p < .001