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ESPE Abstracts (2022) 95 P1-92

ESPE2022 Poster Category 1 Fetal, Neonatal Endocrinology and Metabolism (30 abstracts)

Reference National Standards for Placental Weight in Infants born between the 37th and 43rd weeks of Gestation in Qatar. (A Population-Based Retrospective Data Analysis (n = 80722).

Fawzia Alyafei , Mai Al-qubasi , Ashraf Soliman , Hamdy Ali , Tawa Olukade , Mohamad Alturk , Nada Alaaraj , Noor Hamed & Shayma Ahmed

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Hamad General Hospital, Doha, Qatar

Introduction: Because of the associations and links between abnormal placental weight and both fetal and maternal disorders, it is important to have the national normal standard for placental weight as a normality reference.

Aims: To find out the national placental weight standards for babies born between 37th and 43rd weeks of gestation in all groups of males and females babies born AGA, SGA, and LGA.

Methods: This population-based analysis comprised of a 4-year cohort data (January 2016 to December 2019) for births conducted in all HMC hospitals (90% of all births in the country). The inclusion criterion for this analysis was term singleton live births, 37+0 to 42+6 weeks gestation. Furthermore, cases with missing placenta or placenta weight <100g or >2500g were excluded giving a final sample size of 80722 births.

Results: Infant and placental weight pairs were analyzed according to their gestational ages and growth categories (AGA, SGA, LGA). Mean placental weights continued to increase through 41 weeks' gestation in the SGA, AGA, and LGA groups and in both sexes and were heavier in boys. The mean placental weight at term was 682 +/- 96 g for boys and 673 +/- 94 g for girls.

Conclusions: Reference standards of our large national cohort were achieved. And demonstrated a consistent increase in placental size until 41 weeks of gestation with a mild but significant decrease in the 42nd week.

MALE NEWBORN PLACENTA Weight STANDARDS

Gestational age mean Sd p5 p10 p25 p50 p75 p90 p95
37 632 114 440 482 565 640 700 755 810
38 652 109 470 510 600 650 700 780 830
39 664 101 490 530 610 680 710 780 820
40 682 96 520 565 626 680 725 800 850
41 693 101 515 575 640 700 750 810 860
42 677 100 520 550 620 680 720 800 850
Total 664 105 485 528 608 680 720 790 832

FEMALE NEWBORN PLACENTA Weight STANDARDS

Gestational age mean sd p5 p10 p25 p50 p75 p90 p95
37 627 117 430 480 560 630 690 750 820
38 645 108 460 510 585 650 700 770 820
39 659 101 490 530 600 670 710 780 820
40 673 94 510 560 620 680 720 780 820
41 683 95 516 570 630 680 722 800 850
42 669 106 500 529 610 680 720 780 810
Total 658 103 480 522 600 665 710 780 820

Volume 95

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60th Annual ESPE (ESPE 2022)

Rome, Italy
15 Sep 2022 - 17 Sep 2022

European Society for Paediatric Endocrinology 

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Reference National Standards for Placental Weight in Infants born between the 37th and 43rd weeks of Gestation in Qatar. (A Population-Based Retrospective Data Analysis (<em>n</em> = 80722) (<1 min ago)

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