Skip to main content

Table 1 Association between sociodemographic factors and very early introduction of solid foods (< 17 weeks) (n = 934)

From: Determinants for early introduction of complementary foods in Australian infants: findings from the HSHK birth cohort study

VariableSolids introducedaSolids introducedaUnivariate odds ratiob
< 17 weeks≥17 weeks
N (%)N (%)ORCI95
Maternal age (years)
  < 2530 (32.6)62 (67.4)1.00 
 25–2936 (14.1)219 (85.9)0.34***0.19, 0.60
 30–3444 (12.5)307 (87.5)0.30***0.17, 0.51
  ≥ 3517 (7.2)219 (92.8)0.16***0.08, 0.31
Maternal education
  < Year 1233 (23.4)108 (76.6)1.00 
 Year 12 completed36 (17.3)172 (82.7)0.690.40, 1.16
 College/TAFE23 (12.9)155 (87.1)0.49*0.27, 0.87
 University35 (8.6)372 (91.4)0.31***0.18, 0.52
Marital Status
 Married79 (10.8)655 (89.2)1.00 
 Living with a partner/ De facto18 (16.4)92 (83.6)1.620.93, 2.83
 Single Mother30 (33.3)60 (66.7)4.15***2.52, 6.81
Mother’s country of birth
 Australia77 (17.7)359 (82.3)1.00 
 China3 (5.4)53 (94.6)0.26*0.80, 0.87
 Vietnam12 (9.1)120 (90.9)0.47*0.25, 0.89
 Asia Other6 (5.5)104 (94.5)0.27**0.11, 0.64
 Middle-East/ Africa9 (11.1)72 (88.9)0.580.28, 1.22
 Others20 (16.9)98 (83.1)0.950.55, 1.63
Partner’s country of birth
 Australia59 (16.4)300 (83.6)1.00 
 China2 (4.8)40 (95.2)0.250.06, 1.08
 Vietnam8 (7.0)107 (93.0)0.38*0.18, 0.82
 Asia Other7 (6.7)98 (93.3)0.36*0.16, 0.82
 Middle-East/ Africa12 (12.5)84 (87.5)0.730.37, 1.41
 Others12 (10.0)108 (90.0)0.570.29, 1.09
Mother’s occupation
 Home duties/ student32 (18.8)138 (81.2)1.00 
 Unskilled22 (13.0)147 (87.0)0.650.36, 1.17
 Sales/Clerical43 (14.7)250 (85.3)0.740.45, 1.23
 Managers9 (14.8)52 (85.2)0.750.33, 1.67
 Professionals21 (8.7)220 (91.3)0.41**0.23, 0.74
Mother’s employment status
 Not working at 12 months71 (14.5)420 (85.5)1.00 
 Return to work < 6 months33 (17.6)155 (82.4)1.260.80, 1.98
 Return to work 6–12 months18 (8.1)203 (91.9)0.530.31, 0.90
Index for Relative Socioeconomic Disadvantage
 Least Disadvantaged6 (12.0)44 (88.0)1.00 
 2nd Quintile36 (15.1)202 (84.9)1.310.52, 3.29
 3rd Quintile7 (8.8)73 (91.3)0.700.22, 2.23
 4th Quintile19 (10.4)164 (89.6)0.850.32, 2.25
 Most Disadvantaged59 (15.4)324 (84.6)1.340.55, 3.28
  1. a The total of the categories do not always add up to 934 due to missing or incomplete data for some items
  2. b The univariate odds ratio indicates the likelihood of early introduction of solid foods
  3. OR odds ratio, CI95−95% confidence interval
  4. * p < 0.05 ** p < 0.01 *** p < 0.001