Table 1

Characteristics of participants who provided intake data at 7 and/or 12 months of age or biochemical data at 12 months of age

Control (n=81)BLISS (n=88)
Maternal and household variables
Maternal age at birth (years), mean (SD)32.2 (5.8)31.7 (4.8)
Maternal parity
  First child32 (40)37 (42)
  Two children27 (33)37 (42)
  Three or more children22 (27)14 (16)
Maternal ethnicity
  NZ European70 (87)71 (80)
  Māori6 (7)8 (9)
  Other5 (6)9 (10)
Maternal education
  School only23 (28)26 (30)
  Postsecondary13 (16)20 (22)
  University45 (56)42 (48)
Household deprivation*
  1–3 (low)24 (30)25 (28)
  4–737 (45)46 (53)
  8–10 (high)20 (25)17 (19)
Infant variables
Sex
  Female37 (46)50 (57)
  Male44 (54)38 (43)
Infant birth weight (g), mean (SD)3510 (453)3496 (448)
Infant gestational age at birth (weeks), mean (SD)39.5 (1.2)39.7 (1.0)
Complementary feeding variables
Age complementary foods were introduced (weeks), mean (SD)22.6 (3.1)24.6 (3.2)***
Complementary foods delayed to 6 months of age15 (18)58 (66)***
  • Data presented as n (%), unless otherwise stated.

  • *Household deprivation categorised using the NZDep2013 scale in which decile 1 indicates the lowest level of deprivation and 10 indicates the highest.44

  • ***P<0.001.

  • BLISS, Baby-Led Introduction to SolidS; NZ European, New Zealand European.