Table 2.

Size at birth and at discharge by the Fenton and Intergrowth charts

	Fenton	Intergrowth	p value
SGA weight, n (%)	88 (6.4)	109 (8)	< 0.001
SGA length, n (%)	92 (7.1)	137 (10.5)	< 0.001
SGA HC, n (%)	94 (7.3)	119 (9.3)	< 0.001
Birth weight z score	0.22 ± 0.85	0.18 ± 0.93	< 0.001
Birth length z score	0.18 ± 0.97	− 0.3 ± 0.84	< 0.001
Birth HC z score	0.17 ± 1.05	− 0.18 ± 0.9	< 0.001
Discharge weight z score	− 1.44 ± 1.21	− 1.03 ± 1.33	< 0.001
Discharge length z score	− 1.94 ± 1.46	− 2.1 ± 1.92	< 0.001
Discharge HC z score	− 1.25 ± 1.28	− 1.53 ± 1.76	< 0.001
△§ z score weight	− 1.67 ± 1.05	− 1.21 ± 1.15	< 0.001
△§.z score length	− 2.08 ± 1.26	− 1.76 ± 1.64	< 0.001
△§ z score HC	− 1.38 ± 1.33	− 1.31 ± 1.66	< 0.001

Values are expressed as number (%) or mean ± standard deviation. SGA, small for gestational age; HC, head circumference. ^§Differences between values at discharge and at birth