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16 887例胎龄27~42周单胎新生儿KI均数及百分位数值 （LMS方法[8]）
| 胎龄(周) | n | 出生均数 | 曲线参数 | 百分位数 | |||||||||||
| 均值 | 标准差 | L | M | S | 3rd | 10th | 25th | 50th | 75th | 90th | 97th | ||||
| 注：a示与同胎龄组男性新生儿比较，P < 0.01；b示与同胎龄组男性新生儿比较，P < 0.05。L为转换数值的幂值，M为中位数，S为变异系数。 | |||||||||||||||
| 男性 | 9 418 | ||||||||||||||
| 27 | 22 | 8.08 | 1.05 | -0.165 | 7.960 | 0.145 | 6.00 | 6.58 | 7.23 | 7.96 | 8.77 | 9.69 | 10.71 | ||
| 28 | 39 | 8.49 | 1.13 | -0.018 | 8.334 | 0.139 | 6.31 | 6.92 | 7.60 | 8.33 | 9.15 | 10.04 | 11.02 | ||
| 29 | 53 | 8.91 | 1.33 | 0.130 | 8.709 | 0.134 | 6.64 | 7.27 | 7.96 | 8.71 | 9.52 | 10.39 | 11.33 | ||
| 30 | 83 | 9.25 | 1.29 | 0.279 | 9.091 | 0.128 | 6.97 | 7.63 | 8.34 | 9.09 | 9.89 | 10.74 | 11.64 | ||
| 31 | 91 | 9.33 | 0.96 | 0.416 | 9.490 | 0.122 | 7.34 | 8.02 | 8.74 | 9.49 | 10.28 | 11.11 | 11.97 | ||
| 32 | 109 | 9.92 | 1.15 | 0.517 | 9.921 | 0.116 | 7.74 | 8.44 | 9.17 | 9.92 | 10.70 | 11.52 | 12.36 | ||
| 33 | 125 | 10.30 | 1.11 | 0.571 | 10.385 | 0.110 | 8.20 | 8.91 | 9.63 | 10.38 | 11.16 | 11.96 | 12.78 | ||
| 34 | 164 | 10.92 | 1.31 | 0.575 | 10.879 | 0.104 | 8.71 | 9.41 | 10.13 | 10.88 | 11.65 | 12.44 | 13.25 | ||
| 35 | 242 | 11.23 | 1.13 | 0.539 | 11.390 | 0.098 | 9.25 | 9.94 | 10.65 | 11.39 | 12.15 | 12.93 | 13.73 | ||
| 36 | 395 | 11.93 | 1.17 | 0.478 | 11.896 | 0.092 | 9.81 | 10.48 | 11.18 | 11.90 | 12.64 | 13.40 | 14.19 | ||
| 37 | 985 | 12.39 | 1.05 | 0.420 | 12.348 | 0.086 | 10.32 | 10.97 | 11.65 | 12.35 | 13.07 | 13.82 | 14.59 | ||
| 38 | 1 788 | 12.76 | 1.02 | 0.378 | 12.694 | 0.081 | 10.74 | 11.37 | 12.02 | 12.69 | 13.39 | 14.11 | 14.85 | ||
| 39 | 2 689 | 12.94 | 0.96 | 0.346 | 12.913 | 0.076 | 11.04 | 11.64 | 12.27 | 12.91 | 13.58 | 14.27 | 14.99 | ||
| 40 | 1 862 | 13.05 | 0.96 | 0.291 | 13.047 | 0.073 | 11.25 | 11.82 | 12.43 | 13.05 | 13.69 | 14.36 | 15.05 | ||
| 41 | 727 | 13.18 | 0.96 | 0.220 | 13.153 | 0.069 | 11.42 | 11.98 | 12.56 | 13.15 | 13.77 | 14.41 | 15.08 | ||
| 42 | 44 | 13.14 | 0.80 | 0.147 | 13.249 | 0.066 | 11.59 | 12.13 | 12.68 | 13.25 | 13.84 | 14.46 | 15.10 | ||
| 女性 | 7 469 | ||||||||||||||
| 27 | 13 | 7.76 | 0.80 | -1.116 | 7.655 | 0.135 | 6.04 | 6.50 | 7.02 | 7.66 | 8.42 | 9.36 | 10.56 | ||
| 28 | 22 | 8.10 | 0.98 | -0.795 | 8.061 | 0.131 | 6.36 | 6.85 | 7.41 | 8.06 | 8.82 | 9.72 | 10.81 | ||
| 29 | 26 | 8.82 | 1.38 | -0.471 | 8.469 | 0.126 | 6.67 | 7.20 | 7.80 | 8.47 | 9.23 | 10.09 | 11.08 | ||
| 30 | 43 | 9.01 | 1.18 | -0.144 | 8.880 | 0.121 | 6.99 | 7.57 | 8.19 | 8.88 | 9.63 | 10.46 | 11.37 | ||
| 31 | 61 | 9.20 | 0.96 | 0.168 | 9.304 | 0.117 | 7.33 | 7.95 | 8.60 | 9.30 | 10.05 | 10.85 | 11.70 | ||
| 32 | 78 | 9.74 | 1.31 | 0.439 | 9.749 | 0.112 | 7.70 | 8.35 | 9.04 | 9.75 | 10.49 | 11.26 | 12.07 | ||
| 33 | 91 | 10.31 | 1.03 | 0.643 | 10.216 | 0.107 | 8.12 | 8.80 | 9.50 | 10.22 | 10.95 | 11.71 | 12.48 | ||
| 34 | 141 | 10.59b | 1.18 | 0.761 | 10.702 | 0.102 | 8.58 | 9.27 | 9.98 | 10.70 | 11.43 | 12.18 | 12.93 | ||
| 35 | 188 | 11.21 | 1.02 | 0.781 | 11.207 | 0.096 | 9.09 | 9.79 | 10.49 | 11.21 | 11.93 | 12.67 | 13.41 | ||
| 36 | 283 | 11.61a | 1.12 | 0.709 | 11.715 | 0.091 | 9.64 | 10.32 | 11.01 | 11.72 | 12.43 | 13.17 | 13.91 | ||
| 37 | 640 | 12.20a | 1.07 | 0.558 | 12.199 | 0.086 | 10.18 | 10.83 | 11.51 | 12.20 | 12.91 | 13.64 | 14.38 | ||
| 38 | 1 273 | 12.68a | 1.01 | 0.354 | 12.594 | 0.081 | 10.65 | 11.27 | 11.92 | 12.59 | 13.29 | 14.01 | 14.76 | ||
| 39 | 2 179 | 12.89b | 0.99 | 0.164 | 12.842 | 0.077 | 10.98 | 11.57 | 12.19 | 12.84 | 13.52 | 14.23 | 14.96 | ||
| 40 | 1 670 | 12.98b | 0.96 | 0.025 | 12.970 | 0.074 | 11.18 | 11.75 | 12.34 | 12.97 | 13.63 | 14.31 | 15.04 | ||
| 41 | 716 | 13.09 | 0.95 | -0.066 | 13.044 | 0.071 | 11.32 | 11.87 | 12.44 | 13.04 | 13.68 | 14.35 | 15.05 | ||
| 42 | 45 | 12.86 | 0.97 | -0.143 | 13.095 | 0.068 | 11.44 | 11.96 | 12.51 | 13.10 | 13.71 | 14.35 | 15.03 | ||
| 性别混合 | 16 887 | ||||||||||||||
| 27 | 35 | 7.96 | 0.97 | -0.494 | 7.845 | 0.142 | 6.01 | 6.54 | 7.15 | 7.84 | 8.65 | 9.57 | 10.66 | ||
| 28 | 61 | 8.35 | 1.09 | -0.288 | 8.230 | 0.137 | 6.32 | 6.89 | 7.52 | 8.23 | 9.03 | 9.93 | 10.95 | ||
| 29 | 79 | 8.88 | 1.34 | -0.080 | 8.617 | 0.132 | 6.64 | 7.24 | 7.90 | 8.62 | 9.41 | 10.28 | 11.24 | ||
| 30 | 126 | 9.17 | 1.25 | 0.130 | 9.009 | 0.126 | 6.97 | 7.60 | 8.28 | 9.01 | 9.79 | 10.64 | 11.55 | ||
| 31 | 152 | 9.28 | 0.96 | 0.327 | 9.416 | 0.121 | 7.32 | 7.98 | 8.68 | 9.42 | 10.19 | 11.01 | 11.88 | ||
| 32 | 187 | 9.84 | 1.22 | 0.488 | 9.850 | 0.115 | 7.72 | 8.40 | 9.11 | 9.85 | 10.62 | 11.42 | 12.25 | ||
| 33 | 216 | 10.31 | 1.07 | 0.594 | 10.313 | 0.109 | 8.16 | 8.85 | 9.57 | 10.31 | 11.08 | 11.86 | 12.67 | ||
| 34 | 305 | 10.77 | 1.26 | 0.639 | 10.803 | 0.104 | 8.65 | 9.35 | 10.07 | 10.80 | 11.56 | 12.33 | 13.13 | ||
| 35 | 430 | 11.22 | 1.08 | 0.623 | 11.312 | 0.098 | 9.18 | 9.87 | 10.58 | 11.31 | 12.06 | 12.82 | 13.61 | ||
| 36 | 678 | 11.80 | 1.16 | 0.559 | 11.820 | 0.092 | 9.73 | 10.41 | 11.10 | 11.82 | 12.56 | 13.31 | 14.08 | ||
| 37 | 1 625 | 12.32 | 1.06 | 0.466 | 12.286 | 0.086 | 10.26 | 10.91 | 11.59 | 12.29 | 13.01 | 13.75 | 14.51 | ||
| 38 | 3 061 | 12.73 | 1.02 | 0.360 | 12.653 | 0.081 | 10.70 | 11.33 | 11.98 | 12.65 | 13.35 | 14.07 | 14.82 | ||
| 39 | 4 868 | 12.92 | 0.98 | 0.266 | 12.882 | 0.077 | 11.01 | 11.61 | 12.23 | 12.88 | 13.56 | 14.25 | 14.98 | ||
| 40 | 3 532 | 13.02 | 0.96 | 0.179 | 13.011 | 0.073 | 11.21 | 11.79 | 12.39 | 13.01 | 13.66 | 14.34 | 15.04 | ||
| 41 | 1 443 | 13.13 | 0.96 | 0.103 | 13.100 | 0.070 | 11.37 | 11.92 | 12.50 | 13.10 | 13.73 | 14.38 | 15.06 | ||
| 42 | 89 | 13.00 | 0.90 | 0.033 | 13.173 | 0.067 | 11.51 | 12.04 | 12.60 | 13.17 | 13.78 | 14.40 | 15.06 | ||