Associations of neonatal high birth weight with maternal pre-pregnancy body mass index and gestational weight gain: a case–control study in women from Chongqing, China

Xie, Yao Jie; Peng, Rong; Han, Lingli; Zhou, Xiaoli; Xiong, Zhengai; Zhang, Yuan; Li, Junnan; Yao, Ruoxue; Li, Tingyu; Zhao, Yong

doi:10.1136/bmjopen-2015-010935

Cited by 18 publications

(17 citation statements)

References 35 publications

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“…Multiple studies from middle and high income countries have found that women with inadequate GWG were at a higher risk of giving birth to LBW and preterm infants [ 5 , 12 – 16 ]. Women in LICs generally have lower weight and GWG than those in high income countries [ 17 ]. More than 95% of LBW infants are born in LICs—sub-Saharan Africa alone has a 15% incidence of LBW [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Pre-pregnancy body mass index (BMI) and maternal gestational weight gain are positively associated with birth outcomes in rural Malawi

Gondwe

Ashorn

et al. 2018

PLoS ONE

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BackgroundWhereas poor maternal nutritional status before and during pregnancy is widely associated with adverse birth outcomes, studies quantifying this association in low income countries are scarce. We examined whether maternal pre-pregnancy body mass index (BMI) and weight gain during pregnancy are associated with birth outcomes in rural Malawi.MethodsWe analyzed the associations between pre-pregnancy BMI and average weekly gestational weight gain (WWG) and birth outcomes [duration of gestation, birth weight, length-for-age z-score (LAZ), and head circumference-for-age z-score (HCZ)]. We also determined whether women with low or high pre-pregnancy BMI or women with inadequate or excessive WWG were at increased risk of adverse birth outcomes.ResultsThe analyses included 1287 women with a mean BMI of 21.8 kg/m2, of whom 5.9% were underweight (< 18.5 kg/m2), 10.9% were overweight (≥ 25 kg/m2), 71.8% had low WWG [below the lower limit of the Institute of Medicine (IOM) recommendation], and 5.2% had high WWG (above IOM recommendation). In adjusted models, pre-pregnancy BMI was not associated with duration of pregnancy (p = 0.926), but was positively associated with birth weight and HCZ (<0.001 and p = 0.003, respectively). WWG was positively associated with duration of gestation (p = 0.031), birth weight (p<0.001), LAZ (p<0.001), and HCZ (p<0.001). Compared to normal weight women, underweight women were at increased risk of having stunted infants (p = 0.029). Women with low WWG were at increased risk of having infants with low birth weight (p = 0.006) and small head circumference (p = 0.024) compared to those with normal weight gain. Those with high BMI or high WWG were not at increased risk of adverse birth outcomes.ConclusionsWWG is an important predictor of birth outcomes in rural Malawi. The high prevalence of inadequate WWG compared to low pre-pregnancy BMI highlights the need to investigate causes of inadequate weight gain in this region.

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Section: Introductionmentioning

confidence: 99%

Pre-pregnancy body mass index (BMI) and maternal gestational weight gain are positively associated with birth outcomes in rural Malawi

Gondwe

Ashorn

et al. 2018

PLoS ONE

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“…The prenatal and in utero growth is dependent upon maternal nutritional status, and growing evidence has demonstrated that the latter is often correlated with GWG and pre-pregnancy BMI [29]. According to Moroccan Ministry of Health recommendations, GWG should never be less than 7 kg in obese or overweight women [30].…”

Section: Macrosomia Risk Factorsmentioning

confidence: 99%

Rates and Risk Factors in Macrosomic Newborns among Non-Diabetic Parturients at Tiznit City, Morocco: A Case-Control Study

Korrida¹

2017

OALib

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Background: The present study was elaborated to assess the prevalence of high birth weight and its related risk factors for macrosomic infants among women in Southern Morocco. Methods: A case-control study was conducted on term singleton live-births, with no morbidity or malformation, of a sample of (n = 78) nulliparous and multiparous non-diabetic women delivering at Hassan I Provincial Hospital. Cases included neonates ≥ 4000 g, whereas controls comprised infants with birth weight between 2500 and 3999 g. Personal information was collected from pregnant women using a structured questionnaire, and through a review of their medical records. Associations between exposure and dependent variable (macrosomia) were calculated using linear and logistic regressions. Results: Macrosomia prevalence was 35.89%. Mean birth weight in cases was 4310.71 ± 246.96 g, and in controls 3076.00 ± 533.97 g. Maternal lifestyle behaviors, as well as sociodemographic factors were not associated with macrosomia, except for maternal age over 40 years (OR: 4.27, 95% CI: 0.98 -18.68). Logistic regression model analysis indicated that macrosomia was strongly associated with hormone therapy (adjusted OR: 18.83, 95% CI: 1.54 -214.51), followed by obesity/overweight history (adjusted OR: 7.94, 95% CI: 1.52 -41.41), and pre-pregnancy BMI ≥ 25 Kg/m 2 for pooled overweight and obesity factor (adjusted OR: 5.24, 95% CI: 1.54 -17.82). Conclusion: Pre-pregnancy BMI > 25 kg/m², pre-existing overweight/ obesity, and hormone therapy should be considered as independent risk factors for fetal macrosomia and require more attention from health professionals.

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“…Generally, data show an average gestational weight gain of 19.7 ± 5.1 kg. [16] Here, the patient's weight was 46 kg before pregnancy, and her weight was 62.5 kg before delivery, indicating a 16.5-kg increase. Abdominal weight gain could have increased the stress concentration and overtaxed the instruments, resulting in kyphosis progression and, ultimately, rod breakage.…”

Section: Discussionmentioning

confidence: 97%

Revision surgery after pregnancy in a patient with congenital kyphoscoliosis

Wang²,

Xu³

et al. 2016

Medicine

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Rationale:Rod breakage during pregnancy and delivery has never been described in a patient who has undergone surgery for congenital scoliosis (CS). Here, we present an unusual but significant case of revision surgery.Patient concerns:A 29-year-old woman presented with low back pain during pregnancy after posterior osteotomy, correction and fusion at T9 to L5 for CS. Radiographs during follow-up, 4 months after the patient gave birth, demonstrated rod breakage.Diagnoses:Rod breakage after orthopaedic surgery of congenital kyphoscoliosisInterventions:The patient was taken into the operating room for replacement of the broken rods, recovery of sagittal balance, bone graft fusion, and improvement of stability by cross-connection. The patient recovered fully by the 3-month postoperative follow-up.Outcomes:In follow-up, the instruments were in good condition, the orthopedic effect was not lost, and low back pain relief was observed.Lessons:We opine that the rod breakage during pregnancy resulted from weight gain and a lack of an anterior approach to the supportive bone graft. Therefore, female patients with spinal surgery should visit the hospital for advice before pregnancy.

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Associations of neonatal high birth weight with maternal pre-pregnancy body mass index and gestational weight gain: a case–control study in women from Chongqing, China

Cited by 18 publications

References 35 publications

Pre-pregnancy body mass index (BMI) and maternal gestational weight gain are positively associated with birth outcomes in rural Malawi

Pre-pregnancy body mass index (BMI) and maternal gestational weight gain are positively associated with birth outcomes in rural Malawi

Rates and Risk Factors in Macrosomic Newborns among Non-Diabetic Parturients at Tiznit City, Morocco: A Case-Control Study

Revision surgery after pregnancy in a patient with congenital kyphoscoliosis

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