From: First-year growth of 834 preterm infants in a Chinese population: a single-center study
Characteristics | VLBW | LBW | NBW |
---|---|---|---|
Number of participants | 132 | 504 | 198 |
Gestational age (week) | 30.6 ± 2 | 34.5 ± 1.6 | 36.0 ± 0.8 |
Birth weight (kg) | 1.27 ± 0.16 | 2.06 ± 0.28 | 2.79 ± 0.23 |
WAZ for birth | −0.55 ± 1.02 | −0.58 ± 0.75 | 0.27 ± 0.61 |
Male | 61(46) | 264(47) | 129(65) |
Twins | 37(28) | 194(38) | 44(23) |
SGA | 27(20.9) | 76(15.1) | 0(0) |
Characteristics of mothers | |||
Education(college) | 56(43.1) | 249(49.5) | 87(44.1) |
Primipara | 53(40.6) | 234(46.5) | 109(55.3) |
Maternal age at birth (years) | 27.0 ± 3.3 | 27.3 ± 4.1 | 26.9 ± 3.0 |