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Table 4 Birthweight percentiles of supertwins (kg)

From: Reference birthweight range for multiple birth neonates in Japan

gestational age (weeks) triplets quadruplets
  male female male female
  10th 50th 90th 10th 50th 90th 10th 50th 90th 10th 50th 90th
27 0.860 1.092 1.143 0.672 0.909 1.079 0.782 0.916 0.982 0.589 0.812 1.025
28 0.882 1.163 1.274 0.784 1.024 1.186 0.839 0.990 1.149 0.730 0.950 1.151
29 0.938 1.252 1.418 0.884 1.145 1.317 0.903 1.088 1.318 0.860 1.087 1.278
30 1.021 1.357 1.571 0.977 1.270 1.467 0.977 1.203 1.483 0.981 1.221 1.405
31 1.125 1.474 1.730 1.067 1.398 1.630 1.060 1.329 1.636 1.100 1.353 1.533
32 1.244 1.601 1.892 1.157 1.528 1.802 1.153 1.459 1.771 1.219 1.483 1.662
33 1.370 1.734 2.056 1.252 1.660 1.977 1.258 1.587 1.882 1.342 1.611 1.791
34 1.497 1.871 2.216 1.355 1.792 2.151 1.373 1.706 1.961 1.475 1.736 1.921
35 1.619 2.008 2.372 1.471 1.924 2.318       
36 1.729 2.144 2.520 1.604 2.055 2.474       
37 1.820 2.274 2.656 1.758 2.183 2.613       
38 1.886 2.396 2.779 1.937 2.309 2.730       
39 1.920 2.506 2.885 2.144 2.430 2.821