| 3mo (n = 32) | 6mo (n = 31) | 12mo (n = 31) | 18mo (n = 18) | 24mo (n = 28) |
---|---|---|---|---|---|
Infant sex (% boys)a | 14 (44) | 21 (68) | 15 (48) | 10 (56) | 14 (50) |
Infant weight (kg)b | 5.8 (0.8) | 7.7 (1.2) | 9.0 (1.0) | 9.9 (1.5) | 10.8 (1.2) |
Infant length (cm)b | 58.7 (5.1) | 65.0 (2.7) | 72.9 (3.6) | 79.3 (4.3) | 82.3 (3.9) |
Infant BMI z scoreb | 0.2(2.5) | 0.6 (1.6) | 0.3 (1.3) | −0.3 (1.6) | 0.2 (1.0) |
Attainment of milestones at given agea | |||||
  Holding head | 21 (66) | NA | NA | NA | NA |
  Rolling | NA | 13 (42) | NA | NA | NA |
  Sitting | NA | 16 (52) | NA | NA | NA |
  Crawling | NA | 7 (23) | 16 (52) | NA | NA |
  Pulling up | NA | NA | 14 (45) | NA | NA |
  Walking | NA | NA | 9 (29) | 6 (33) | 28 (100) |
  Running | NA | NA | NA | 4 (22) | NA |
Maternal BMI (kg/m2)b | 28.5 (9.1) | 27.8 (6.7) | 29.5 (7.0) | 27.5 (8.0) | 27.3 (6.7) |
Maternal age (years)b | 27 (5) | 31 (6) | 29 (5) | 32 (6) | 29 (7) |
Infant PA (mg)c | 23 (17–28) | 30 (24–34) | 36 (30–39) | 39 (35–45) | 44 (37–51) |
Home Environment (score/48)b | 24 (8) | 20 (4) | 21 (5) | 24 (5) | NA |
Maternal Beliefs (score/4)a | |||||
  PA Knowledge | NA | 1.4 (0.3) | 1.4 (0.3) | NA | NA |
  PA views | NA | 1.7 (0.5) | 1.9 (0.6) | NA | NA |
  Negative PA views | NA | 3.0 (0.5) | 2.8 (0.6) | NA | NA |
  PA optimism | NA | 1.4 (0.4) | 1.5 (0.5) | NA | NA |
  Future expectations | NA | 2.5 (0.8) | 2.6 (0.7) | NA | NA |
  Floor play concerns | NA | 3.0 (0.8) | 3.0 (0.6) | NA | NA |
  Self efficacy | NA | 1.4 (0.3) | 1.5 (0.4) | NA | NA |