Table 1 Sample size, and mean (SD) of birth weight, length and head circumference, by sex and GA.
From: Construction of China national newborn growth standards based on a large low-risk sample
GA (weeks) | Male | Female | ||||||
|---|---|---|---|---|---|---|---|---|
Sample size | Weight | Length | Head circumference | Sample size | Weight | Length | Head circumference | |
24 | 26 | 708.3 (161.7) | 32.1 (2.9) | 22.2 (2.6) | 15 | 664.7 (187.1) | 31.6 (2.6) | 21.3 (2.1) |
25 | 40 | 875.7 (134.3) | 34.6 (3.0) | 24.1 (2.1) | 17 | 814.4 (205.0) | 32.3 (3.1) | 23.0 (2.7) |
26 | 79 | 969.0 (132.0) | 34.6 (3.1) | 24.8 (1.8) | 40 | 877.8 (112.2) | 34.3 (3.0) | 24.5 (1.9) |
27 | 136 | 1107.6 (185.7) | 36.6 (2.8) | 25.6 (1.9) | 106 | 987.0 (174.2) | 35.0 (3.0) | 25.2 (1.9) |
28 | 305 | 1215.7 (210.4) | 37.5 (2.9) | 26.6 (1.8) | 212 | 1161.1 (200.6) | 37.2 (2.9) | 26.6 (1.9) |
29 | 353 | 1344.7 (234.4) | 38.5 (2.8) | 27.4 (1.8) | 279 | 1260.4 (198.0) | 38.3 (3.0) | 26.7 (1.9) |
30 | 497 | 1499.9 (257.7) | 40.3 (2.7) | 28.4 (1.8) | 356 | 1430.6 (256.8) | 39.6 (2.8) | 27.9 (1.9) |
31 | 631 | 1681.5 (260.3) | 41.6 (2.8) | 29.0 (1.7) | 457 | 1568.3 (291.1) | 40.9 (2.8) | 28.6 (1.9) |
32 | 774 | 1874.7 (313.8) | 43.0 (2.7) | 29.8 (1.8) | 516 | 1773.7 (310.5) | 42.2 (2.7) | 29.4 (1.9) |
33 | 714 | 2118.2 (324.0) | 44.6 (2.5) | 30.9 (1.8) | 498 | 1965.6 (353.1) | 43.5 (2.8) | 30.2 (1.9) |
34 | 948 | 2328.0 (353.9) | 45.7 (2.4) | 31.6 (1.6) | 710 | 2216.0 (335.5) | 44.9 (2.5) | 31.1 (1.7) |
35 | 1085 | 2569.3 (389.3) | 47.0 (2.2) | 32.2 (1.6) | 910 | 2453.4 (384.8) | 46.3 (2.2) | 31.8 (1.7) |
36 | 1454 | 2798.2 (390.0) | 48.1 (2.1) | 32.7 (1.5) | 1106 | 2672.0 (390.5) | 47.5 (2.2) | 32.3 (1.6) |
37 | 1020 | 3087.7 (345.3) | 49.5 (1.5) | 33.3 (1.3) | 857 | 2956.3 (363.7) | 48.9 (1.7) | 32.9 (1.4) |
38 | 1234 | 3284.0 (376.6) | 50.0 (1.5) | 33.8 (1.4) | 1210 | 3156.8 (356.7) | 49.4 (1.5) | 33.4 (1.3) |
39 | 1549 | 3389.7 (369.2) | 50.5 (1.5) | 34.0 (1.3) | 1440 | 3271.5 (355.2) | 49.9 (1.5) | 33.7 (1.3) |
40 | 1380 | 3499.5 (375.7) | 50.9 (1.5) | 34.2 (1.4) | 1377 | 3377.6 (379.8) | 50.4 (1.4) | 33.8 (1.3) |
41 | 926 | 3574.6 (378.6) | 51.1 (1.5) | 34.4 (1.4) | 1006 | 3474.2 (360.6) | 50.6 (1.4) | 34.1 (1.4) |
42 | 46 | 3570.8 (472.7) | 51.2 (1.8) | 34.4 (1.3) | 66 | 3501.8 (352.6) | 50.8 (1.6) | 34.4 (1.6) |
