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Table 2 Infant anthropometry at baseline, 2 and 4 weeks, and 3 months for randomised groups and the breast-fed reference group (results are mean(SD))

From: Infant feeding bottle design, growth and behaviour: results from a randomised trial

  Avent Dr Brown Difference (95% CI) p Breast-fed
  n = 31 n = 32 n = 74   
Birth weight (g) 3518 (441) 3322 (381) 196 (-15 - 407) 0.07 3363 (407)
Birthweight SDS 0.15 (0.92) -0.24 (0.78) 0.39 (-0.05 - 0.83) 0.08 -0.13 (0.90)
Enrolment      
Age at randomisation or enrolment (days) 7.5 (3.7) 7.1 (3.1)    7.5 (2.1)
Weight (g) 3559 (537) 3340 (375) 219 (-16.8 - 454) 0.07 3352 (393)
Weight SD -0.40 (0.93) -0.73 (0.74) 0.33 (-0.1 - 0.76) 0.1 -0.71 (0.86)
Length (cm) 51.1 (2.6) 50.3 (2.0) 0.81 (-0.35 - 2.0) 0.2 50.5 (2.5)
Length SD -0.33 (1.15) -0.62 (0.99) 0.29 (-0.25 - 0.83) 0.3 -0.53 (1.28)
OFC (cm) 35.8 (1.5) 35.1 (1.5) 0.73 (-0.02 - 1.5) 0.06 35.4 (1.4)
OFC SD 0.22 (1.07) -0.28 (1.1) 0.50 (-0.04 - 1.04) 0.07 -0.07 (1.2)
2 weeks n = 24 n = 20    n = 66
Age (days) 14.8 (1.7) 15.2 (2.6) 14.7 (2.1)   
Weight (g) 3776 (509) 3575 (311) 201 (-62 - 465) 0.1 3635 (385)
Weight SD -0.35 (0.91) -0.53 (0.76) 0.18 (-0.34 - 0.69) 0.5 -0.56 (0.80)
Length (cm) 52.3 (2.3) 51.2 (1.9) 1.14 (-0.18 - 2.5) 0.09 52.3 (2.4)
Length SD -0.13 (1.08) -0.58 (0.90) 0.39 (-0.23 - 1.0) 0.2 -0.06 (1.23)
OFC (cm) 36.5 (1.4) 35.8 (0.95) 0.72 (-0.024 - 1.5) 0.06 36.2 (1.0)
OFC SD 0.31 (1.0) -0.20 (0.76) 0.44 (-0.11 - 0.99) 0.1 0.12 (0.89)
4 weeks n = 27 n = 22    n = 65
Age (days) 29.0 (2.3) 29.8 (3.6)    29.1 (2.9)
Weight (g) 4294 (503) 4181 (380) 151 (-111 - 414) 0.3 4244 (451)
Weight SD 0.33 (1.28) -0.27 (0.73) 0.6 (0.016 - 1.19) 0.04 -0.14 (0.87)
Length (cm) 54.0 (2.2) 53.4 (2.0) 0.71 (-0.5 - 1.9) 0.2 54.4 (2.0)
Length SD 0.27 (1.24) -0.33 (1.01) 0.6 (-0.04 - 1.2) 0.07 0.16 (0.99)
OFC (cm) 37.6 (1.28) 37.4 (0.9) 0.32 (-0.31 - 0.9) 0.3 37.6 (1.5)
OFC SD 0.80 (1.34) 0.32 (1.1) 0.48 (-0.24 - 1.2) 0.2 0.22 (0.84)
3 months n = 26 n = 23    n = 61
Age (yrs) 0.25 (0.04) 0.24 (0.03)    0.25 (0.02)
Weight (kg) 6.30 (0.78) 6.00 (0.68) 0.31 (-0.11 - 0.73) 0.1 6.04 (0.70)
Weight SDS 0.36 (1.0) 0.09 (0.94) 0.26 (-0.29 - 0.82) 0.3 0.04 (1.07)
Length (cm) 60.9 (2.2) 59.9 (2.0) 0.96 (-0.24 - 2.2) 0.1 60.9 (2.7)
Length SDS 0.25 (1.0) -0.07 (1.0) 0.33 (-0.23 - 0.88) 0.2 0.27 (1.3)
OFC (cm) 41.0 (1.6) 40.5 (1.2) 0.54 (-0.29 - 1.4) 0.2 40.5 (1.1)
OFC SDS 0.16 (1.1) -0.11 (0.9) 0.27 (-0.32 - 0.86) 0.4 -0.25 (1.0)