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. Author manuscript; available in PMC: 2023 Oct 18.
Published in final edited form as: Appetite. 2022 May 13;175:106080. doi: 10.1016/j.appet.2022.106080

Table 3.

Weight outcomes at 16 weeks by study group.

RP Safety Control
Upward crossing of percentile lines on the WHO growth chart, based on weight-for-age from 3 to 16 weeks

N (%) N (%) Wald χ2 Pr>ChiSq Effect
Crossing 2 percentile lines (n = 183) 13 (14.1%) 22 (24.2%) 2.9 0.09 0.33
Crossing 1 percentile line (n = 183) 45 (48.9%) 56 (61.5%) 2.9 0.09 0.26

Growth measurement at 16 weeks, adjusted for WHO standards

Mean (SD) Mean (SD) t-statistic p-value Effect size
Weight-for-age percentile (n=183) 41.0 (26.5) 43.9 (30.0) 0.68 0.50 0.10
Weight-for-age z score (n=183) −0.27 (0.90) −0.22 (1.03) 0.38 0.71 0.05
Length-for-age percentile (n=171) 49.6 (27.7) 50.5 (28.5) 0.21 0.83 0.03
Length-for-age z score (n=171) −0.01 (0.93) −0.00 (0.94) 0.07 0.95 0.00
Weight-for-length percentile (n=171) 41.0 (27.4) 41.4 (29.3) 0.10 0.92 0.01
Weight-for-length z score (n=171) −0.33 (1.03) −0.31 (1.13) 0.13 0.89 0.02
BMI percentile (n=171) 39.0 (26.6) 39.9 (29.2) 0.22 0.83 0.03
BMI z score (n=171) −0.38 (0.98) −0.35 (1.11) 0.15 0.88 0.03