From: Sex differences in umbilical artery Doppler indices: a longitudinal study
Gestation (week) | 2.5th percentile | 5th percentile | 10th percentile | 25th percentile | Mean | 75th percentile | 90th percentile | 95th percentile | 97.5th percentile |
---|---|---|---|---|---|---|---|---|---|
20 | 0.90 | 0.95 | 1.01 | 1.11 | 1.23 | 1.35 | 1.48 | 1.55 | 1.62 |
21 | 0.88 | 0.92 | 0.98 | 1.08 | 1.20 | 1.33 | 1.45 | 1.52 | 1.59 |
22 | 0.85 | 0.90 | 0.96 | 1.06 | 1.18 | 1.30 | 1.42 | 1.49 | 1.56 |
23 | 0.83 | 0.88 | 0.93 | 1.03 | 1.15 | 1.27 | 1.39 | 1.47 | 1.53 |
24 | 0.81 | 0.86 | 0.91 | 1.01 | 1.13 | 1.25 | 1.37 | 1.44 | 1.51 |
25 | 0.79 | 0.83 | 0.89 | 0.98 | 1.10 | 1.22 | 1.34 | 1.42 | 1.48 |
26 | 0.76 | 0.81 | 0.86 | 0.96 | 1.08 | 1.20 | 1.32 | 1.39 | 1.46 |
27 | 0.74 | 0.79 | 0.84 | 0.94 | 1.05 | 1.17 | 1.29 | 1.37 | 1.43 |
28 | 0.72 | 0.76 | 0.82 | 0.91 | 1.03 | 1.15 | 1.27 | 1.34 | 1.41 |
29 | 0.69 | 0.74 | 0.79 | 0.89 | 1.00 | 1.13 | 1.25 | 1.32 | 1.39 |
30 | 0.67 | 0.72 | 0.77 | 0.87 | 0.98 | 1.10 | 1.22 | 1.30 | 1.36 |
31 | 0.65 | 0.70 | 0.75 | 0.84 | 0.96 | 1.08 | 1.20 | 1.28 | 1.34 |
32 | 0.63 | 0.67 | 0.73 | 0.82 | 0.94 | 1.06 | 1.18 | 1.25 | 1.32 |
33 | 0.61 | 0.65 | 0.70 | 0.80 | 0.91 | 1.04 | 1.16 | 1.23 | 1.30 |
34 | 0.58 | 0.63 | 0.68 | 0.78 | 0.89 | 1.02 | 1.14 | 1.21 | 1.28 |
35 | 0.56 | 0.61 | 0.66 | 0.76 | 0.87 | 1.00 | 1.12 | 1.19 | 1.26 |
36 | 0.54 | 0.59 | 0.64 | 0.73 | 0.85 | 0.98 | 1.10 | 1.17 | 1.24 |
37 | 0.52 | 0.57 | 0.62 | 0.71 | 0.83 | 0.96 | 1.08 | 1.16 | 1.23 |
38 | 0.50 | 0.54 | 0.60 | 0.69 | 0.81 | 0.94 | 1.06 | 1.14 | 1.21 |
39 | 0.48 | 0.52 | 0.58 | 0.67 | 0.79 | 0.92 | 1.04 | 1.12 | 1.19 |
40 | 0.46 | 0.50 | 0.56 | 0.65 | 0.77 | 0.90 | 1.02 | 1.10 | 1.17 |