Skip to main content

Table 1 Socio-demographics of sample population and target population

From: Infant care practices and parent uptake of safe sleep messages: a cross-sectional survey in Queensland, Australia

  Survey Participants
n (%)
Target Population
n (%)
P-value*
Maternal Characteristics n = 3341 n = 10,131  
 Age, years (missing = 103)   
  < 20 years 27 (0.8) 354 (3.4) < 0.0001
  20–29 years 1065 (32.9) 4432 (43.1)
  30–39 years 1982 (61.2) 5066 (49.2)
  ≥ 40 years 164 (5.1) 435 (4.2)
 Parity (missing = 51)   
  Primiparous 1496 (45.5) 3079 (30.4) < 0.0001
  Multiparous 1794 (55.5) 7052 (69.6)
 Marital status (missing = 57) (missing = 15)  
  Partnered [married/de facto] 3125 (95.2) 8120 (80.3) < 0.0001
  Single [never married, separated/divorced, widowed, not stated] 159 (4.8) 2046 (19.7)
 Country of birth (missing = 57) (missing = 1)  
  Australia 2554 (77.8) 7386 (72.9) < 0.0001
  Overseas 730 (22.2) 2744 (27.1)
 Indigenous status (missing = 74)   
  Neither Aboriginal nor Torres Strait Islander 3205 (98.1) 9411 (92.9) < 0.0001
  Aboriginal and/or Torres Strait Islander 62 (1.9) 720 (7.1)
 Smoking status (missing = 59) (missing = 21)  
  Smoked during pregnancy 135 (4.1) 1216 (12.0) < 0.0001
  Smoke-free during pregnancy 3147 (95.9) 8894 (88.0)
Infant Characteristics n = 3341 n = 10,287  
 Sex (missing = 29)   
  Female 1552 (53.1) 4881 (47.4) 0.41
  Male 1760 (46.9) 5406 (52.6)
 Birth weight, g (missing = 147) (missing = 19)  
  < 2500 169 (5.3) 700 (6.8) < 0.0003
  2500–3499 1632 (51.1) 5444 (52.9)
  3500–3999 1012 (31.7) 3078 (29.9)
  4000–4499 323 (10.1) 938 (9.1)
  ≥ 4500 58 (1.8) 127 (1.2)
 Gestation (missing = 55)   
  Term ≥37 weeks 3074 (93.5) 9400 (91.4) < 0.0001
  Preterm < 37 weeks 212 (6.5) 887 (8.6)
 Plurality (missing = 74)   
  Singleton 3220 (98.6) 9976 (97.0) < 0.0001
  Multiple 47 (1.4) 311 (3.0)
 Indigenous status (missing = 61)   
  Neither Aboriginal nor Torres Strait Islander 3166 (96.5) 9382 (91.2) < 0.0001
  Aboriginal and/or Torres Strait Islander 114 (3.5) 905 (8.8)
  1. *p-value for difference between participants and target population