Richter T, Vogtmann C, Schüler P, Ruckhäberle K E, Beyreiss K
Universitätskinderklinik Leipzig.
Kinderarztl Prax. 1992 Dec;60(9-10):281-4.
Referring to the number of all live-born children, hypotrophic newborn (IUGR) were classified at the Centre for Perinatal Care in Leipzig into two periods of time. Based on the 5th Kyank-percentile 6.5% hypotrophic newborn were classified into period A (1982-1984) and 5.0% hypotrophic newborn were classified in period B (1987-1989). The proportion of hypotrophic newborn with a birth weight < 2500 g amounted to one quarter of all infants (except multiple birth) with low birth weight in period A and to one fifth (20.7%) in period B. The decrease in the rate of hypotrophy in these infants affected nearly exclusively the mature ones. The number of infants with extreme intra-uterine growth retardation amounted to 29% (99 in 329) in period A and to 24% (58 in 238) in period B. The rate of hypotrophy in stillbirths decreased from 44% to 33%. In this process the proportion of extremely hypotrophic stillbirths amounted to 47% in period A, whereas it decreased to only 26% in period B.
参照所有活产儿的数量，莱比锡围产期护理中心将低体重新生儿（小于胎龄儿）分为两个时间段。根据第5百分位数，6.5%的低体重新生儿被归入A期（1982 - 1984年），5.0%的低体重新生儿被归入B期（1987 - 1989年）。出生体重<2500g的低体重新生儿在A期占所有低出生体重婴儿（除多胞胎）的四分之一，在B期占五分之一（20.7%）。这些婴儿中低体重发生率的下降几乎完全影响到足月成熟婴儿。A期极重度宫内生长受限婴儿的数量占29%（329例中有99例），B期占24%（238例中有58例）。死产儿中的低体重发生率从44%降至33%。在此过程中，极重度低体重死产儿在A期占47%，而在B期降至仅26%。
