Perinatal mortality in single and multiple births in Japan, 1980-1991.
Perinatal mortality in single and multiple births in Japan, 1980-1991.
复制标题
1980-1991 年日本单胎和多胎围产期死亡率。
DOI：
10.1111/j.1365-3016.1994.tb00451.x
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发表时间：
1994
影响因子：
2.8
通讯作者：
Yoko Imaizumi
中科院分区：
文献类型：
--
作者：
Yoko Imaizumi
1980-1991年期间，单胎、双胞胎、三胞胎、四胞胎和五胞胎的围产儿死亡率(PMR)呈逐年下降趋势。12年间单胎、双胞胎、三胞胎、四胞胎、五胞胎的PMR值分别为7.7‰、45.6‰、89.0‰、116.8‰、476.2‰。双胞胎和单胞胎围产儿死亡的相对风险分别为双胞胎6例、三胞胎12例、四胞胎15例和五胞胎62例。在单胎和双胞胎中，男性的PMR显著高于女性，但在多胎出生顺序较高的PMR中，男性的PMR没有性别差异。双胞胎和三胞胎的PMR随出生顺序的增加而增加，而四胞胎的PMR不受出生顺序的影响。多胞胎在围产儿死亡中的比例越来越高，这可能与日本多胎出生率的上升有关。
Perinatal mortality rates (PMR) decreased significantly per year in single, twin, triplet, quadruplet and quintuplet births during the period 1980-1991. The PMRs were 7.7 per 1000 livebirths for singletons, 45.6 for twins, 89.0 for triplets, 116.8 for quadruplets, and 476.2 for quintuplets during the 12 years. The relative risks of perinatal death in multiplets vs. singletons were 6 for twins, 12 for triplets, 15 for quadruplets and 62 for quintuplets. The PMR was significantly higher in males than females for singletons and twins, but there was no sex differential in PMRs for higher order of multiple births. The PMR increased with birth order in twins and triplets, whereas there was no birth order effect on the PMR for quadruplets. An increasing proportion of multiple births among perinatal deaths may be related to the increasing multiple birth rate in Japan.