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Table 3 Growth velocities of SGA, AGA, and LGA preterm infants from CA 40 weeks to 24 months

From: Postnatal growth of preterm infants during the first two years of life: catch-up growth accompanied by risk of overweight

Subgroup Corrected age Weight Length/height
Difference (95% CI)a P-value Difference (95% CI)a P-value
SGA Overall < 0.001 < 0.001
CA 40 weeks- 3 months 0.37 (0.28–0.45) < 0.001 0.37 (0.16–0.49) < 0.001
CA 3–6 months 0.14 (0.06–0.23) 0.001 0.27 (0.15–0.38) < 0.001
CA 6–9 months 0.05 (−0.03–0.15) 0.243 0.07 (−0.06–0.19) 0.278
CA 9–12 months 0.04 (− 0.06–0.13) 0.433 − 0.00 (− 0.13–0.13) 0.992
CA 12–18 months −0.10 (− 0.20–0.00) 0.057 0.03 (− 0.10–0.17) 0.640
CA 18–24 months 0.15 (0.01–0.29) 0.035 0.25 (0.07–0.44) 0.008
AGA Overall < 0.001 < 0.001
CA 40 weeks- 3 months 0.08 (0.07–0.11) < 0.001 0.07 (0.05–0.10) < 0.001
CA 3–6 months −0.07 (− 0.09- -0.05) < 0.001 0.00 (− 0.02–0.03) 0.751
CA 6–9 months −0.10 (− 0.12- -0.08) < 0.001 −0.07 (− 0.10- -0.05) < 0.001
CA 9–12 months −0.09(− 0.11- -0.07) < 0.001 −0.10 (− 0.12- -0.07) < 0.001
CA 12–18 months −0.17 (− 0.20- -0.15) < 0.001 −0.12 (− 0.14- -0.09) < 0.001
CA 18–24 months −0.03 (− 0.06- − 0.00) 0.032 -0.00 (− 0.04–0.04) 0.999
LGA Overall < 0.001 < 0.001
CA 40 weeks- 3 months − 0.22(− 0.29- -0.14) < 0.001 − 0.29 (− 0.38- -0.20) < 0.001
CA 3–6 months −0.21 (− 0.29- -0.14) < 0.001 −0.08 (− 0.17–0.01) 0.069
CA 6–9 months −0.20 (− 0.29- -0.12) < 0.001 −0.18 (− 0.27- -0.08) < 0.001
CA 9–12 months −0.07 (− 0.16–0.02) 0.129 −0.13 (− 0.23- -0.03) 0.009
CA 12–18 months −0.24 (− 0.33- -0.15) < 0.001 −0.13 (− 0.24- − 0.03) 0.012
CA 18–24 months -0.03 (− 0.15–0.09) 0.667 −0.08 (− 0.22–0.05) 0.218
  1. a Gestational age, gender, birth weight z-score, and intrauterine growth status were adjusted;
  2. SGA small for gestational age; AGA appropriate for gestational age; LGA large for gestational age; CA corrected age; CI confidence interval