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. 2020 Mar 30;10(2):152–161. doi: 10.34172/hpp.2020.25

Table 2. Odds ratios and 95% confidence intervals for being overweight and underweight (Z score) according to tertiles of plant-based diet score among infants (n = 290) .

Variables PDI P for trend* hPDI P for trend uPDI P for trend
T1 (≤52.99) T2 (53-57.99) T3 (≥58) T1 (≤51.99) T2 (52-57.99) T3 (≥58) T1 (≤50.99) T2 (51-58.99) T3 (≥59)
n = 91 n = 109 n = 90 n = 88 n = 113 n = 89 n = 99 n = 96 n = 95
Overweight at 2 months (n = 46)
Crude 1 1.10 (0.50-2.42) 1.20 (0.53-2.69) 0.65 1 1.53 (0.71-3.29) 0.89 (0.37-2.14) 0.81 1 0.75 (0.34-1.65) 0.90 (0.42-1.93) 0.78
Model 1a 1 1.12 (0.45-2.76) 1.39 (0.52-3.72) 0.50 1 2.56 (1.01-6.55) 1.28 (0.44-3.71) 0.66 1 0.83 (0.31-2.23) 0.69 (0.22-2.09) 0.51
Model 2b 1 1.33 (0.50-3.55) 1.53 (0.50-4.71) 0.45 1 2.65 (0.97-7.20) 1.40 (0.44-4.41) 0.57 1 0.87 (0.31-2.44) 0.67 (0.19-2.26) 0.51
Overweight at 4 months (n = 43)
Crude 1 1.07 (0.46-2.49) 1.22 (0.51-2.90) 0.63 1 0.82 (0.35-1.90) 1.08 (0.46-2.52) 0.84 1 0.46 (0.19-1.09) 0.58 (0.26-1.32) 0.17
Model 1a 1 0.99 (0.38-2.53) 1.22 (0.44-3.37) 0.70 1 1.17 (0.45-3.05) 1.69 (0.62-4.62) 0.30 1 0.43 (0.15-1.21) 0.38 (0.12-1.20) 0.09
Model 2b 1 1.03 (0.36-2.89) 0.89 (0.27-2.87) 0.84 1 0. 88 (0.32-2.43) 1. 28 (0.42-3.89) 0.65 1 0. 39 (0.12-1.19) 0. 31 (0.08-1.12) 0.07
Underweight at 2 months (n = 11)
Crude 1 1.11 (0.24-5.12) 1.36 (0.29-6.27) 0.68 1 0.37 (0.06-2.11) 1.25 (0.32-4.81) 0.70 1 0.67 (0.18-2.46) 0.16 (0.01-1.39) 0.08
Model 1a 1 1.38 (0.25-7.42) 1.49 (0.24-9.06) 0.99 1 0.47 (0.07-2.97) 1.05 (0.22-4.86) 0.14 1 0.32 (0.06-1.69) 0.12 (0.01-1.32) 0.47
Model 2b 1 1.03 (0.11-8.45) 1.46 (0.23-9.22) 0.17 1 0.33 (0.03-3.24) 1.46 (0.27-4.90) 0.56 1 0.60 (0.08-1.97) 0.27 (0.01-1.93) 0.37

PDI whole plant-based diet index; hPDI, healthful plant-based diet index; uPDI, unhealthful plant-based diet index.

* P value was calculated by logistic regression.

a Model 1: adjusted for birthday weight, age of mother, and energy intake of mother.

b Model 2: model 1 + maternal BMI, physical activity, socioeconomic status, the length and number of breastfeeding, mothers macronutrients intake and infants supplemental use.