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Department of Pediatrics, Hamad General Hospital, Doha, Qatar.
Acta Biomed. 2023 Aug 3;94(4):e2023147. doi: 10.23750/abm.v94i4.14434.
Data about placental weight (PW) in relation to birth weight (BW) and gestational age (GA) are lacking in Arabic countries.
(a) to find out the national PW standards for babies born between 37th and 42nd weeks of gestation in male and female babies born in Qatar; (b) to study the relation, if any, between PW and maternal age, gestational age (GA), birth weight (BW), and gender of the newborn.
A National population-based retrospective chart review study was conducted between 1-2016 to 12-2019 (n = 80 722). Data of gestational age (GA) at delivery (in weeks), newborn birth weight (BW), PW, and gender at birth, were collected from singleton babies born between 37 th and 42nd weeks of gestation.
The PW ranged from 440 to 860 grams (g) with a mean of 682 ± 96 g. at term for boys and 673 ± 94 g. for girls. The mean BW was 3 036 ± 448 g and BW/PW ratio was 0.203 ± 0.026. The PW continued to increase through 41 weeks' gestation, in boys and girls with a significant decrease at the 42nd week of gestation. PW was significantly correlated with BW (r = 0.596, P: < 0.001) and GA (r = 0.15, P: <0.001) and accounted for 43.4% of the explained variability in birth weight.
PW was a significant predictor of BW with a consistent increase in PW until the 41st week of gestation in boys and girls and a positive correlation with BW and GA.
关于胎盘重量 (PW) 与出生体重 (BW) 和胎龄 (GA) 的关系的数据在阿拉伯国家尚缺乏。
(a) 确定在卡塔尔出生的男性和女性婴儿在 37 至 42 周妊娠期间出生的婴儿的国家 PW 标准；(b) 研究 PW 与母亲年龄、胎龄 (GA)、出生体重 (BW) 和新生儿性别之间的关系。
这是一项全国性基于人群的回顾性图表审查研究，于 2016 年 1 月至 2019 年 12 月进行（n=80722）。从 37 至 42 周妊娠期间出生的单胎婴儿中收集了分娩时的胎龄 (GA)（周）、新生儿出生体重 (BW)、PW 和出生时的性别。
PW 范围为 440 至 860 克（g），足月时男孩为 682 ± 96 g，女孩为 673 ± 94 g。平均 BW 为 3036 ± 448 g，BW/PW 比值为 0.203 ± 0.026。PW 持续增加至 41 周妊娠，男孩和女孩在 42 周妊娠时显著下降。PW 与 BW 显著相关（r=0.596，P<0.001）和 GA（r=0.15，P<0.001），并解释了出生体重 43.4%的可变性。
PW 是 BW 的重要预测指标，男孩和女孩的 PW 持续增加至 41 周妊娠，与 BW 和 GA 呈正相关。
