Table 5: Weeks gestation and growth variables as mean (SD) and 95% confidence intervals in morphometric index z-score bands of 4,725 term-born neonates at 37–43 weeks’ gestation as compared with the reference (25 to <75%).

Morphometric index (centile)NMeanSD95% confidence interval
Lower limitUpper limit

Weeks gestation<10%47238.671.438.538.8<0.001
10 to <25%70939.241.339.139.3<0.001
25 to <75%2,36240.001.140.040.0Reference
75 to <90%71040.391.040.340.5<0.001
90 to <100%47240.580.940.540.7<0.001
Total4,72539.871.339.839.9
Weight (g)<10%4722,5082742,4832,532<0.001
10 to <25%7092,9511362,9412,961<0.001
25 to <75%2,3623,4092363,4003,419Reference
75 to <90%7103,7832113,7683,799<0.001
90 to <100%4724,2112804,1864,236<0.001
Total4,7253,3875003,3723,401
Length (cm)<10%47247.42.047.247.6<0.001
10 to <25%70949.61.349.549.7<0.001
25 to <75%2,36251.61.651.551.6Reference
75 to <90%71053.21.653.153.3<0.001
90 to <100%47254.61.854.454.8<0.001
Total4,72551.42.551.351.5
Head circumference (cm)<10%47232.91.332.833.1<0.001
10 to <25%70933.80.833.833.9<0.001
25 to <75%2,36234.80.934.734.8Reference
75 to <90%71036.10.636.136.2<0.001
90 to <100%47237.10.937.037.2<0.001
Total4,72534.91.434.834.9
Weight-length ratio (W/L)<10%47252.895.0752.4353.34<0.001
10 to <25%70959.603.3259.3559.84<0.001
25 to <75%2,36266.134.3165.9566.30Reference
75 to <90%71071.164.0570.8771.46<0.001
90 to <100%47277.154.6476.7377.57<0.001
Total4,72565.687.6065.4665.90
PI (100W/L³)<10%4722.360.262.342.39<0.001
10 to <25%7092.440.232.422.45<0.001
25 to <75%2,3622.490.232.492.50Reference
75 to <90%7102.530.242.512.54<0.001
90 to <100%4722.600.242.582.62<0.001
Total4,7252.490.242.482.49