Table 2.
Gestational age (weeks) | Min | Max | Average | SD | 5th percentile | Quartile 1 (25%) | Quartile 2 (50%) | Quartile 3 (75%) | 95th percentile |
---|---|---|---|---|---|---|---|---|---|
18 | 1.54 | 2.11 | 1.74 | 0.17 | 1.58 | 1.61 | 1.68 | 1.89 | 1.98 |
19 | 1.53 | 2.01 | 1.76 | 0.11 | 1.60 | 1.68 | 1.78 | 1.84 | 1.94 |
20 | 1.41 | 2.07 | 1.77 | 0.13 | 1.55 | 1.70 | 1.81 | 1.84 | 1.92 |
21 | 1.53 | 2.12 | 1.83 | 0.12 | 1.63 | 1.80 | 1.86 | 1.91 | 1.96 |
22 | 1.50 | 2.24 | 1.84 | 0.16 | 1.63 | 1.75 | 1.86 | 1.93 | 2.06 |
23 | 1.64 | 2.38 | 1.93 | 0.15 | 1.68 | 1.82 | 1.93 | 2.04 | 2.11 |
24 | 1.52 | 2.26 | 1.97 | 0.17 | 1.68 | 1.86 | 1.98 | 2.12 | 2.19 |
25 | 1.78 | 2.21 | 2.00 | 0.12 | 1.80 | 1.94 | 2.02 | 2.10 | 2.16 |
26 | 1.61 | 2.23 | 1.99 | 0.16 | 1.64 | 1.91 | 2.05 | 2.10 | 2.16 |
27 | 1.74 | 2.32 | 2.05 | 0.15 | 1.83 | 1.95 | 2.00 | 2.18 | 2.24 |
28 | 1.81 | 2.39 | 2.09 | 0.15 | 1.84 | 2.01 | 2.09 | 2.19 | 2.32 |
29 | 1.64 | 2.36 | 2.04 | 0.15 | 1.79 | 1.96 | 2.02 | 2.16 | 2.31 |
30 | 1.65 | 2.31 | 2.00 | 0.16 | 1.80 | 1.88 | 2.00 | 2.12 | 2.28 |
31 | 1.61 | 2.28 | 2.01 | 0.15 | 1.78 | 1.90 | 2.05 | 2.14 | 2.20 |
32 | 1.64 | 2.24 | 1.96 | 0.14 | 1.80 | 1.86 | 1.96 | 2.09 | 2.14 |
33 | 1.51 | 2.10 | 1.80 | 0.13 | 1.62 | 1.70 | 1.81 | 1.88 | 2.00 |
34 | 1.44 | 2.10 | 1.76 | 0.14 | 1.54 | 1.64 | 1.81 | 1.85 | 1.93 |
35 | 1.43 | 1.93 | 1.72 | 0.14 | 1.49 | 1.62 | 1.75 | 1.82 | 1.91 |
36 | 1.18 | 1.82 | 1.61 | 0.15 | 1.39 | 1.55 | 1.62 | 1.69 | 1.80 |
37 | 0.63 | 1.73 | 1.51 | 0.20 | 1.32 | 1.44 | 1.57 | 1.62 | 1.69 |
38 | 1.10 | 1.65 | 1.30 | 0.16 | 1.10 | 1.20 | 1.30 | 1.39 | 1.61 |
39 | 1.10 | 1.40 | 1.21 | 0.09 | 1.12 | 1.14 | 1.20 | 1.28 | 1.36 |
40 | 0.95 | 1.31 | 1.22 | 0.10 | 1.11 | 1.16 | 1.23 | 1.29 | 1.31 |