OBJECTIVES: To explore the influencing factors for very preterm birth at a gestational age of <32 weeks in the Xinjiang Uygur Autonomous Region. METHODS: Clinical data of women with preterm deliveries and their newborns admitted to five hospitals in Xinjiang from January 2023 to December 2024 were retrospectively collected. The subjects were divided by gestational age into very preterm (<32 weeks of gestation) and moderate/late preterm (32-36⁺⁶ weeks of gestation) groups. Risk factors associated with very preterm birth were analyzed. RESULTS: A total of 4 105 pregnant women with preterm deliveries were included, with 793 cases (19.32%) in the very preterm group and 3 312 cases (80.68%) in the moderate/late preterm group. The factors significantly associated with very preterm birth were as following: hypertensive disorders of pregnancy (OR=1.785, 95%CI: 1.492-2.135, P<0.05), excessive gestational weight gain (GWG, OR=2.002, 95%CI: 1.672-2.397, P<0.05), insufficient GWG (OR=1.746, 95%CI: 1.326-2.300, P<0.05), chorioamnionitis (OR=2.163, 95%CI: 1.694-2.763, P<0.05), premature rupture of membranes ≥18 hours (OR=2.158, 95%CI: 1.599-2.912, P<0.05), placental abruption (OR=2.228, 95%CI: 1.646-3.014, P<0.05), and ≤7 prenatal visits (OR=3.419, 95%CI: 2.882-4.055, P<0.05). CONCLUSIONS In the Xinjiang Uygur Autonomous Region, hypertensive disorders of pregnancy, excessive or insufficient GWG, chorioamnionitis, premature rupture of membranes ≥18 hours, placental abruption, and ≤7 prenatal visits are risk factors for very preterm birth. Strengthening high-risk pregnancy management is necessary for reducing the incidence of very preterm birth.
Humans ; Female ; Retrospective Studies ; Pregnancy ; Premature Birth/etiology* ; Gestational Age ; Adult ; Risk Factors ; Infant, Newborn ; Gestational Weight Gain

OBJECTIVE: To investigate the association between serum high sensitivity C-reaction protein (hsCRP) in early pregnancy and gestational diabetes mellitus (GDM) among twin pregnant women, and to explore the effects of the pre-pregnant body mass index (BMI) and gestational weight gain (GWG) status on such association. METHODS: Twin pregnant women with pre-pregnant BMI greater than or equal to 18.5 kg/m² were recruited at Department of Obstetrics and Gynecology of Peking University Third Hospital from March 2017 to December 2020. Serum samples collected in early pregnancy were analyzed for hsCRP using particle-enhanced immunoturbidimetric method. In the following visits, the information about GWG and GDM were prospectively collected in every trimester. The association effect between hsCRP tertiles and GDM were estimated using Logistic regression, and further converted into risk ratio (RR). Cochran-Mantel-Haenszel test and mediation analysis were used to explore the effects of BMI and GWG status on the association. RESULTS: Among the included 570 twin pregnant women, 31.6% deve-loped GDM, 26.1% were pre-pregnant overweight or obesity, and 49.5% with GWG out of referenced range. After adjustment for confounding factors, risk of developing GDM in twin gestations with the middle tertile and highest tertile of serum hsCRP in early pregnancy were 1.42 fold (95%CI: 1.02-1.89) and 1.54 fold (95%CI: 1.12-2.02), respectively, compared with the lowest tertile of serum hsCRP, and there existed significantly linear trend (P=0.022). Findings from mediation analysis illustrated that pre-pregnant BMI had partial mediating effect on the association, and BMI accounted for 23.84% (P < 0.001) of the increasing GDM risks with elevated hsCRP. Joint analysis with hsCRP and GWG found that those who were with GWG out of referenced range accompanied with the higher hsCRP tertiles (>1.21 mg/L) had significantly 2.31 fold increased risk according to those who were with GWG in the referenced range accompanied with the lowest hsCRP tertile (≤1.21 mg/L, P < 0.01). CONCLUSION Elevated hsCRP in early pregnancy significantly increased GDM risk among twin pregnant women. The hsCRP-GDM association was dependent on GWG status, and pre-pregnant BMI had partial mediating effect on such association. It is suggested that twin pregnant women should consider systemic inflammation and gestational weight at the same time to reduce GDM risk.
Body Mass Index ; C-Reactive Protein/metabolism* ; Cohort Studies ; Diabetes, Gestational/blood* ; Female ; Gestational Weight Gain ; Humans ; Pregnancy ; Pregnancy, Twin/blood* ; Weight Gain

Background: The aim of the study was to determine the association between total gestational weight gain (TGWG) and maternal and perinatal outcomes based on the Institute of Medicine 2009 gestational weight gain (GWG) guidelines among pregnant patients of the department of obstetrics and gynecology in a tertiary hospital Methodology: Our analysis was carried out in a private hospital in Metro Manila, specifically in a tertiary hospital, in a prospective cohort study that included 565 pregnant women from June 1, 2020, to April 30, 2021. Body mass index (BMI) at initial prenatal visit <14 weeks’ age of gestation and upon admission, birth weight, comorbidities were all assessed and recorded. Our main outcome measures were TGWG, perinatal outcomes (small for gestational age, large for gestational age, intrauterine fetal demise, and admission to neonatal intensive care unit), and maternal outcomes (gestational diabetes mellitus, gestational hypertension, preeclampsia/eclampsia, and preterm birth). The baseline anthropometric, maternal and neonatal outcomes were analyzed using mean, standard deviation, range and chi‑square test was used to correlate total gestational weight gain against maternal and perinatal outcomes and a P‑value less than 0.05 was statistically significant Results: In this study, the mean BMI was 23.6 kg/m2, and based on BMI classification, 8% were underweight, whereas 28.1% and 9% were overweight and obese, respectively. Based on the recommendations of TGWG on each BMI category, using Chi‑square test, there was a significant association of having excess GWG and inadequate GWG against maternal and perinatal outcomes Conclusion Based on the study, women having excess or inadequate TGWG has effects on maternal and perinatal outcomes. Furthermore, women that are classified as overweight and obese in the first trimester have a higher risk of developing comorbidities
Gestational Weight Gain ; Obesity

To explore the correlation of mid-term oral glucose tolerance test (OGTT) and maternal weight gain with adverse pregnancy outcomes in women with gestational diabetes mellitus (GDM). A total of 2611 pregnant women with GDM who were examined and delivered in Women's Hospital, Zhejiang University School of Medicine from July 1st 2017 to 30th June 2018 were enrolled in this study. According to the number of abnormal items of mid-term OGTT results or maternal gestational weight gain (GWG), patients were classified. The incidence of adverse perinatal outcomes in each group and its relation with OGTT results and GWG were analyzed. The incidence of gestational hypertension, premature delivery, macrosomia and large for gestational age infant (LGA) in three abnormal items GDM patients were significantly higher than those in one or two abnormal items GDM patients (all <0.017). The incidence of gestational hypertension and premature delivery in two abnormal items GDM patients were higher than those in one abnormal item GDM patients (all <0.017). The incidence of gestational hypertension and macrosomia in excessive GWG patients were significantly higher than those in inadequate and appropriate GWG patients (all <0.017), and the incidence of LGA were higher than that in inadequate GWG patients (all <0.017). The incidence of premature delivery and low birth weight infants in appropriate GWG patients were significantly lower than those in inadequate and excessive GWG patients, and the incidence of small for gestational age infant (SGA) were significantly lower than that in inadequate GWG patients (all <0.017). In one abnormal item GDM patients, inadequate GWG was a risk factor for premature delivery and SGA (=1.66, 95%: 1.10-2.52; =2.20, 95%: 1.07-4.53), and protective factor for LGA (=0.40, 95%: 0.27-0.59). And excessive GWG was a risk factor for gestational hypertension, premature delivery and low birth weight infants (=2.15, 95%: 1.35-3.41; =1.80, 95%: 1.20-2.72; =2.18, 95%: 1.10-4.30).In two abnormal items GDM patients, inadequate GWG was a protective factor for macrosomia and LGA (=0.24, 95%: 0.09-0.67; =0.54, 95%: 0.34-0.86), while excessive GWG was risk factor for premature delivery (=1.98, 95%: 1.23-3.18).In three abnormal items GDM patients, there was no significant relationship between GWG and adverse pregnancy outcomes. For GDM women with one or two items of elevated blood glucose in OGTT, reasonable weight management during pregnancy can reduce the occurrence of adverse pregnancy outcomes. For those with three items of elevated blood glucose in OGTT, more strict blood glucose monitoring and active intervention measures should be taken in addition to weight management during pregnancy.
Blood Glucose ; Blood Glucose Self-Monitoring ; Body Mass Index ; Diabetes, Gestational/epidemiology* ; Female ; Gestational Weight Gain ; Glucose Tolerance Test ; Humans ; Pregnancy ; Pregnancy Outcome

To explore the effects of pre-pregnancy body mass index (BMI), weight gain and blood lipid level during pregnancy on pregnancy outcome in patients with and without gestational diabetes mellitus(GDM). A total of 12 650 singleton pregnant women without history of hypertension and diabetes who were admitted at Women's Hospital, Zhejiang University School of Medicine for delivery from January 2018 to April 2019 were enrolled in the study. There were 2381 cases complicated with gestational diabetes (GDM group) and 10 269 cases without GDM (non-GDM group). The pre-pregnancy BMI and weight gain during pregnancy were documented in two groups. The factors related to perinatal outcome were analyzed. In both GDM and non-GDM pregnant women, pre-pregnancy overweight and excessive weight gain during pregnancy were independent factors of large for gestational age infant (LGA), small for gestational age infant (SGA) and first cesarean section (<0.01 or <0.05). Excessive weight gain during pregnancy was also an independent risk factor of preeclampsia (<0.05). Triglyceride levels in the second trimester were independently associated with multiple adverse pregnancy outcomes, such as LGA, preeclampsia, initial cesarean delivery, premature delivery. Controlling excessive or insufficient weight gain during pregnancy can significantly reduce the incidence of LGA and SGA. And controlling BMI before pregnancy can effectively reduce the incidence of LGA, preeclampsia and the first cesarean section. For non-GDM pregnant women, abnormal blood lipid levels in the second trimester may be closely related to multiple adverse pregnancy outcomes, and active dietary guidance or treatment is also required.
Body Mass Index ; Cesarean Section ; Diabetes, Gestational/epidemiology* ; Female ; Humans ; Lipids ; Pregnancy ; Pregnancy Outcome ; Weight Gain

BACKGROUND: Women with one abnormal value (OAV) in a 100 g oral glucose tolerance test (OGTT) during pregnancy are reported to have an increased risk of adverse pregnancy outcomes. However, there is limited data about whether women with OAV will progress to gestational diabetes mellitus (GDM) when the OGTT is repeated. METHODS: To identify clinical and metabolic predictors for GDM in women with OAV, we conducted a retrospective study and identified women with OAV in the OGTT done at 24 to 30 weeks gestational age (GA) and repeated the second OGTT between 32 and 34 weeks of GA. RESULTS: Among 137 women with OAV in the initial OGTT, 58 (42.3%) had normal, 40 (29.2%) had OAV and 39 (28.5%) had GDM in the second OGTT. Maternal age, prepregnancy body mass index, weight gain from prepregnancy to the second OGTT, GA at the time of the OGTT, and parity were similar among normal, OAV, and GDM groups. Plasma glucose levels in screening tests were different (151.8±15.7, 155.8±14.6, 162.5±20.3 mg/dL, P<0.05), but fasting, 1-, 2-, and 3-hour glucose levels in the initial OGTT were not. Compared to women with screen negative, women with untreated OAV had a higher frequency of macrosomia. CONCLUSION: We demonstrated that women with OAV in the initial OGTT significantly progressed to GDM in the second OGTT. Clinical parameters predicting progression to GDM were not found. Repeating the OGTT in women with OAV in the initial test may be helpful to detect GDM progression.
Blood Glucose ; Body Mass Index ; Diabetes, Gestational ; Fasting ; Female ; Gestational Age ; Glucose ; Glucose Tolerance Test ; Humans ; Mass Screening ; Maternal Age ; Parity ; Pregnancy ; Pregnancy Outcome ; Pregnant Women ; Retrospective Studies ; Weight Gain

It has been known for a long time that elevated blood pressure (BP) in the young may persist and progress into adult hypertension (HTN). Multiple studies have revealed the predicted BP trajectory lines starting from childhood and related them to later cardiovascular (CV) risks in adulthood. As a small baby grows into a tall adult, BP will also naturally increase. Among early-life predictors of adult HTN, birth history, such as prematurity, and low birth weight have been popular subjects in research on pediatric HTN, because body size at birth has been reported to be inversely related to the risk of adulthood HTN. The hypothesis of HTN in prematurely born adolescents has been postulated as a physiological predisposition to postnatal excessive weight gain. Current body weight is a well-known independent predictor of HTN in children, and some studies showed that children demonstrating upward crossing of their weight percentiles while growing into adolescents have significantly increased risk for elevated BP later in life. Recently, reports focused on the adverse effect of excessive catch-up growth in this population are gradually drawing attention. Accordingly, children born prematurely or with intrauterine growth restriction who show rapid changes in their weight percentile should be under surveillance with BP monitoring. Prevention of childhood obesity, along with special care for premature infants or infants small for their gestational age, by providing healthy nutritional guidelines should be cardinal strategies for the prevention of adult HTN and CV risks later in life.
Adolescent ; Adult ; Blood Pressure ; Body Size ; Body Weight ; Child ; Gestational Age ; Humans ; Hypertension ; Infant ; Infant, Low Birth Weight ; Infant, Newborn ; Infant, Premature ; Parturition ; Pediatric Obesity ; Reproductive History ; Weight Gain

Adult ; Birth Weight ; Body Mass Index ; Female ; Gestational Weight Gain ; physiology ; Humans ; Labor, Obstetric ; physiology ; Pregnancy

OBJECTIVE: To investigate the influence of pre-pregnancy parental body mass index (BMI), maternal weight gain during pregnancy, and their interaction on neonatal birth weight. METHODS: A total of 1 127 pregnant women who underwent regular prenatal examinations and full-term singleton delivery in the First Hospital of Xi'an Jiaotong University from January 2017 to October 2018 were enrolled. The data on their pre-pregnancy BMI, maternal weight gain during pregnancy, pre-pregnancy BMI of the husband, and neonatal birth weight were collected. The interaction between pre-pregnancy parental BMI and maternal weight gain during pregnancy was analyzed, and their correlation with neonatal birth weight was analyzed. RESULTS: Among the 1 127 full-term neonates, the detection rates of low birth weight neonates and macrosomia were 2.22% (25/1 127) and 3.82% (43/1 127) respectively. There were significant differences in pre-pregnancy parental BMI and maternal weight gain during pregnancy among the low birth weight, normal birth weight, and macrosomia groups (P<0.05). Neonatal birth weight was positively correlated with pre-pregnancy parental BMI and maternal weight gain during pregnancy (r=0.097-0.322, P<0.05). Low maternal weight before pregnancy increased the risk of low birth weight (RR=4.17, 95%CI: 1.86-9.38), and maternal overweight/obesity before pregnancy (RR=3.59, 95%CI: 1.93-6.67) and excessive weight gain during pregnancy (RR=3.21, 95%CI: 1.39-7.37) increased the risk of macrosomia. No interaction between pre-pregnancy maternal BMI and maternal weight gain during pregnancy was observed. CONCLUSIONS Pre-pregnancy parental BMI and maternal weight gain during pregnancy are related to neonatal birth weight, and there is no interaction between pre-pregnancy maternal BMI and maternal weight gain during pregnancy.
Birth Weight ; Body Mass Index ; Female ; Gestational Weight Gain ; Humans ; Infant, Newborn ; Pregnancy ; Pregnancy Complications ; Risk Factors ; Weight Gain

BACKGROUND: Weight gain during pregnancy reflects the mother's nutritional status. However, it may be affected by nutritional therapy and exercise interventions used to control blood sugar in gestational diabetes mellitus (GDM). This study aimed to evaluate weight gain during gestation and pregnancy outcomes among women with GDM. METHODS: A retrospective study involving 1523 women with GDM was conducted between July 2013 and July 2016. Demographic data, gestational weight gain (GWG), blood glucose, glycated-hemoglobin level, and maternal and fetal outcomes were extracted from medical records. Relationships between GWG and pregnancy outcomes were investigated using multivariate logistic regression. RESULTS: In total, 451 (29.6%) women showed insufficient GWG and 484 (31.8%) showed excessive GWG. Excessive GWG was independently associated with macrosomia (adjusted odds ratio [aOR] 2.20, 95% confidence interval [CI] 1.50-3.52, P < 0.001), large for gestational age (aOR 2.06, 95% CI 1.44-2.93, P < 0.001), small for gestational age (aOR 0.49, 95% CI 0.25-0.97, P = 0.040), neonatal hypoglycemia (aOR 3.80, 95% CI 1.20-12.00, P = 0.023), preterm birth (aOR 0.45, 95% CI 0.21-0.96, P = 0.040), and cesarean delivery (aOR 1.45, 95% CI 1.13-1.87, P = 0.004). Insufficient GWG increased the incidence of preterm birth (aOR 3.53, 95% CI 1.96-6.37, P < 0.001). CONCLUSIONS Both excessive and insufficient weight gain require attention in women with GDM. Nutritional therapy and exercise interventions to control blood glucose should also be used to control reasonable weight gain during pregnancy to decrease adverse pregnancy outcomes.
Adult ; Body Mass Index ; Diabetes, Gestational ; pathology ; physiopathology ; Female ; Fetal Macrosomia ; pathology ; physiopathology ; Gestational Age ; Humans ; Logistic Models ; Pregnancy ; Pregnancy Complications ; Pregnancy Outcome ; Retrospective Studies ; Weight Gain ; physiology