Age, body mass index, and weight gain do not increase sympathetic activity during pregnancy

Associations between prepregnancy body mass index, gestational weight gain, maternal age, and basal sympathetic nervous system activity (SNA) in normotensive pregnant women have not been explored. Retrospective analysis of microneurography records from 74 normotensive pregnant women during their third trimester indicated that although pregnancy is associated with rapid weight gain, this does not influence SNA. There were also no associations between maternal age and SNA, but more studies are needed to confirm this interpretation. Novelty Neither age nor excessive weight gain appears to influence sympathetic activity during normotensive pregnancy.

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Association between maternal gestational weight gain and preterm birth according to body mass index and maternal age in Quzhou, China

Scientific Reports ◽

10.1038/s41598-020-72949-w ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Ying Hu ◽

Qi Wu ◽

Luyang Han ◽

Yuqing Zou ◽

Die Hong ◽

...

Keyword(s):

Body Mass Index ◽

Weight Gain ◽

Preterm Birth ◽

Gestational Weight Gain ◽

Body Mass ◽

Maternal Age ◽

Preterm Births ◽

Normal Weight ◽

Live Births ◽

Gestational Weight

Abstract The aim of this study is to investigate the association between maternal gestational weight gain (GWG) and preterm birth according to pre-pregnancy body mass index (BMI) and maternal age. We did a cohort, hospital-based study in Quzhou, South China, from 1 Jan 2018 to 30 June 2019. We selected 4274 singleton live births in our analysis, 315 (7.4%) of which were preterm births. In the overall population, excess GWG was significantly associated with a decreased risk of preterm birth compared with adequate GWG (adjusted OR 0.81 [95% CI 0.72–0.91]), and the risk varied by increasing maternal age and pre-pregnancy BMI. Interestingly, underweight women who older than 35 years with excess GWG had significantly increased odds of preterm birth compared with adequate GWG in underweight women aged 20–29 years (2.26 [1.06–4.85]) and normal weight women older than 35 years (2.23 [1.13–4.39]). Additionally, low GWG was positively and significantly associated with preterm birth overall (1.92 [1.47–2.50]). Among normal weight women category, compared with adequate GWG women aged 20–29 years did, those older than 20 years with low GWG, had significantly higher odds of preterm birth, which increased with maternal age (1.80 [1.16–2.79] in 20–29 years, 2.19 [1.23–3.91] in 30–34 years, 3.30 [1.68–6.46] in ≫ 35 years). In conclusion, maternal GWG was significantly associated with the risk of preterm birth, but the risk varied by pre-pregnancy BMI and maternal age.

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Association between pre‐pregnancy body mass index and gestational weight gain and perinatal outcomes in pregnant women diagnosed with gestational diabetes mellitus: The Japan Environment and Children’s Study

Journal of Diabetes Investigation ◽

10.1111/jdi.13723 ◽

2021 ◽

Author(s):

Yoshihiro Saito ◽

Sumitaka Kobayashi ◽

Atsuko Ikeda‐Araki ◽

Sachiko Ito ◽

Chihiro Miyashita ◽

...

Keyword(s):

Diabetes Mellitus ◽

Body Mass Index ◽

Weight Gain ◽

Gestational Diabetes ◽

Gestational Diabetes Mellitus ◽

Pregnant Women ◽

Gestational Weight Gain ◽

Body Mass ◽

Perinatal Outcomes ◽

Gestational Weight

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Association of Age, Parity and Body mass Index with Hemoglobin and Serum Ferritin Levels in Pregnant Women in Baghdad City

Iraqi Journal of Pharmaceutical Sciences ( P-ISSN 1683 - 3597 E-ISSN 2521 - 3512) ◽

10.31351/vol30iss2pp153-157 ◽

2021 ◽

Vol 30 (2) ◽

pp. 153-157

Author(s):

Mayada M. Moustafa ◽

Ali Abdulhussain Kasim ◽

Rawaa Dawood Al-Janabi

Keyword(s):

Body Mass Index ◽

Pregnant Women ◽

Body Mass ◽

Serum Ferritin ◽

Negative Correlation ◽

Maternal Age ◽

Third Trimester ◽

Serum Samples ◽

Pooled Data ◽

Hb Concentration

Hemogloin (Hb) and serum ferritin levels are used to assess anemia in pregnancy. Some studies referred to the influence of maternal age, body mass index (BMI) and parity on Hb and serum ferritin levels. The study aimed to examine the possible association of maternal Hb and serum ferritin with maternal age, parity, and BMI in a sample of pregnant women in Baghdad. Ninety healthy pregnant women, grouped in three equal groups according to the pregnancy trimester, and thirty apparently healthy non-pregnant women from Baghdad were enrolled in this observational study. Blood and serum samples were obtained for the estimation of Hb and serum ferritin levels. The pooled data of participants showed a negative correlation between parity and each of blood Hb concentrations (r= -0.147, P=0.046) and plasma ferritin levels (r= -0.186, P= 0.038). The negative correlation of parity with blood Hb concentration was reported in participants in the third trimester of pregnancy (r= -0.270, P=0.048); and between parity and plasma ferritin levels in the second (r= -0.088, P= 0.046) and third (r= -0.398, P=0.029) trimester pregnant. The study did not report a significant correlation between age and BMI with blood Hb concentrations or serum ferritin levels in pregnant women at any trimester of pregnancy. There is a negative correlation between parity and each of blood Hb concentration and serum ferritin levels in pregnant women in Baghdad. While, there is no such correlation with maternal age and BMI at any trimester of pregnancy.

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