Table 5 The associations between PDI and birth outcomes among pregnant women with available dietary data (n = 712)
| Â | Birth weight (g) | Birth length (cm) | Small for gestational age | |
|---|---|---|---|---|
β (95%CI) | β (95%CI) | Case (%) | OR (95%CI) | |
PDI | ||||
Ln-PDI | -30.79 (-52.94, -8.64) | -0.06 (-0.14, 0.03) | 66 (9.27) | 1.13 (0.91, 1.41) |
Tertiles | ||||
 T1 | ref | ref | 19 (7.88) | ref |
 T2 | -10.62 (-74.94, 53.70) | 0.05 (-0.19, 0.30) | 18 (7.11) | 0.94 (0.47, 1.86) |
 T3 | -112.24 (-179.54, -44.94) | -0.31 (-0.57, -0.06) | 29 (13.30) | 1.78 (0.95, 3.34) |
 P for trend |  < 0.001 | 0.005 |  | 0.036 |
Dichotomous value | ||||
 < PMTDI | ref | ref | 36 (7.56) | ref |
 ≥ PMTDI | -103.69 (-160.99, -46.39) | -0.36 (-0.57, -0.14) | 30 (12.71) | 1.71 (1.01, 2.91) |