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1.
2.

Objectives

The levonorgestrel (LNG) intrauterine system (LNG-IUS) has been shown to improve symptoms in women with minimal to moderate endometriosis. The precise mechanism for this is unknown. We hypothesized that this involves alteration in the expression of estrogen receptors (ER) and progesterone receptors (PR).

Study design

A prospective study of tissues obtained prospectively from 28 women with laparoscopically confirmed minimal to moderate endometriosis treated with LNG-IUS for 6 months. Endometrial and endometriotic biopsies obtained before and 6 months after treatment were processed and stained for ER-α, ER-β and PR expression by immunohistochemistry. Photographs were obtained and the receptors quantified.

Results

The mean (±SD) age of the 28 women was 31 ± 7.2 (range 18-42) years. Eight of them at initial biopsy were in the proliferative phase and 20 in the secretory phase. ER-α, ER-β and PR expression decreased significantly in the glandular (P < 0.0001) and stromal (P < 0.0001) compartments of the eutopic endometrium after treatment with LNG-IUS. Similarly, ER-α, ER-β and PR were significantly decreased in the stromal compartment of ectopic endometrium (P < 0.0001), and significantly decreased in the ectopic glands of ER-α (P < 0.0001), ER-β (P = 0.0002) and PR (P = 0.0064) expression.

Conclusion

The ameliorative effect of LNG-IUS on the symptoms of minimal to moderate endometriosis is likely modulated through a decrease in the expression of glandular and stromal ER-α, ER-β and PR in the ectopic endometrium.  相似文献   

3.

Objective

To describe and analyze observed hypersensitivity reactions (HSR) from the randomized, multicenter phase III CALYPSO trial that evaluated the efficacy and safety of the combination of carboplatin and pegylated liposomal doxorubicin (CD) compared with standard carboplatin-paclitaxel (CP) in patients with platinum-sensitive relapsed ovarian cancer (ROC).

Methods

HSR documented within case report forms and SAE reports were specifically analyzed. Analyses were based on the population with allergy of any grade and for grade > 2 allergy.

Results

Overall 976 patients were recruited to this phase III trial, with toxicity data available for 466 and 502 on the CD and CP arms, respectively. There was a 15.5% HSR rate associated with CD (2.4% grade > 2) versus 33.1% with CP (8.8% grade > 2), p < 0.001. HSRs occurred more often during first cycle in the CD (46%) arm than in the CP arm (16%). Multivariate predictors of allergy were chemotherapy regimen and age; patients randomized to CD and patients ≥ 70 years old on CP had less allergy. Few patients (< 6%) stopped treatment due to allergy. Allergy rates were higher in patients who did not receive prior supportive treatment; however there was no relationship between allergy and the type of carboplatin product received, or response rate.

Conclusions

Use of PLD with carboplatin instead of paclitaxel and older age were the only 2 factors predicting a low rate of HSRs in patients with ROC. CD has previously demonstrated superior progression-free survival and therapeutic index than CP. Taken together these data support the use of CD as a safe and effective therapeutic option for platinum-sensitive ROC.  相似文献   

4.
Peng X  Wu Z  Yu L  Li J  Xu W  Chan HC  Zhang Y  Hu L 《Gynecologic oncology》2012,125(2):470-476

Objective

To investigate the correlation of cystic fibrosis transmembrane conductance regulator (CFTR) to cervical cancer progression and prognosis by examining CFTR expression levels in different cervical tissues and cell lines.

Methods

Paraffin-embedded cervical tissue samples (n = 192) were collected for immunohistochemistry (IHC), while fresh cervical tissue samples (n = 165) and human cervical cell lines were collected for protein and mRNA detection by quantitative real-time PCR and western blot, respectively. Correlations between CFTR expression levels to cancer clinicopathologic features and prognosis were statistically analyzed.

Results

Both CFTR mRNA and protein expression gradually increased from normal to precancerous (LSIL, HSIL) and cervical cancer tissues (p < 0.05). Furthermore, CFTR expression level was well-correlated to tumor stage (p < 0.001), histological grades (p < 0.001), lymphatic metastasis (p < 0.001), vascular invasion (p < 0.05), interstitial invasive depth (p < 0.05), tumor size (p < 0.05) and HPV infection (p < 0.05). In vitro, CFTR mRNA and protein were expressed strongly both in SiHa and HeLa, but little was seen in Caski and H8 (p < 0.05). More importantly, overexpression of CFTR conferred significantly poorer survival in cervical carcinoma (Log rank p = 0.028), although it was not an independent predictor for prognosis according to multivariate analysis (p > 0.05).

Conclusions

These results suggest that higher CFTR expression is closely associated with cervical cancer progression, aggressive behaviors and poorer prognosis, indicating that CFTR may function as a novel tumor marker, a prospective prognostic indicator and a potential therapeutic target for cervical cancer.  相似文献   

5.

Objectives

To investigate whether BCL-2 expression would improve MVP/IGF-1R prediction of clinical outcome in cervix carcinoma patients treated by radiochemotherapy, and suggest possible mechanisms behind this effect.

Methods

Fifty consecutive patients, who achieved complete response to treatment, from a whole series of 60 cases suffering from non-metastatic localized cervical carcinoma, were prospectively included in this study from July 1999 to December 2003. Follow-up was closed in January 2011. All patients received pelvic radiation (45-64.80 Gy in 1.8-2 Gy fractions) with concomitant cisplatin at 40 mg/m2/week doses followed by brachytherapy. Oncoprotein expression was studied by immunohistochemistry in paraffin-embedded tumour tissue.

Results

No relation was found between BCL-2 and clinicopathological variables. High MVP/IGF-1R/BCL-2 tumour expression was strongly related to poor local and regional disease-free survival (P < 0.0001), distant disease-free survival (P = 0.010), disease-free survival (P < 0.0001), and cause-specific survival (P < 0.0001). NHEJ repair protein Ku70/80 expression was significantly repressed in tumours overexpressing all three oncoproteins (P = 0.047). No differences were observed in proliferation (Ki67 expression) or P53 alteration.

Conclusions

BCL-2, MVP, and IGF-1R overexpression were related to poorer clinical outcome in cervical cancer patients who achieved clinical complete response to radiochemotherapy. The NHEJ repair protein Ku70/80 expression could be involved in the regulation of these oncoproteins.  相似文献   

6.

Objective

B7-H3, a member of the B7 family of immune regulatory ligands regulates T cell-mediated peripheral immune response. The purpose of this study was to correlate the expression of B7-H3 and number of lymphocytes in patients with endometrial cancer.

Material and methods

A total of 107 patients with primary endometrial carcinoma (type I/endometrioid, n = 81; type II, n = 18) and endometrial hyperplasia (n = 8) were investigated. Expression of B7-H3 in endometrial hyperplasia, endometrial carcinoma, and the endothelium of tumor-associated vasculature was assessed using immunohistochemistry from paraffin-embedded tissue blocks. Detection of CD8-positive tumor-infiltrating lymphocytes (TIL) and CD8-positive tumor-associated lymphocytes (TAL) was correlated with the expression of B7-H3.

Results

Patients with high grade tumors and patients with type II carcinomas expressed significantly more B7-H3 than low grade and endometrioid tumors (p = < 0.0001 and p = 0.0001, respectively). The expression of B7-H3 in the endothelium of identified vasculature in the tumor specimens showed similar results with strong relation to high grade tumors (p = 0.001) and type II carcinomas (p = 0.004). We found a significant correlation between B7-H3 expression on cancer cells and tumor T-cell infiltration (TIL) (p = 0.017). In a univariate survival analysis, overexpression of B7-H3 in tumor cells was associated with shortened overall survival (p = 0.005).

Conclusions

B7-H3 is overexpressed on cancer cells and in the endothelium of tumor-associated vasculature in high grade tumors (G3) and type II carcinomas. B7-H3 expression on cancer cells is correlated with the number of T cells infiltrating the tumor. Endometrium tumor development and progression may be associated with downregulation of T-cell-mediated antitumor immunity through B7-H3.  相似文献   

7.
Jin L  Shen Q  Ding S  Jiang W  Jiang L  Zhu X 《Gynecologic oncology》2012,126(1):140-146

Objective

Abnormal expression of Annexin A2 and S100A proteins has been reported to induce sensitivity/resistance to chemotherapy in a variety of cancers. The aim of this study was to evaluate the significance of Annexin A2 and S100A protein expression to predict response to neoadjuvant chemotherapy and prognostic significance of these protein expressions in bulky stage IB-IIA cervical cancer patients.

Methods

Paired tumor samples (pre- and post-chemotherapy) were obtained from 68 patients who were treated with cisplatin-based neoadjuvant chemotherapy and radical hysterectomy at our hospital from 2006 to 2011. The expression of Annexin A2 and S100A proteins was analyzed by immunohistochemistry.

Results

Thirty-six patients were identified as chemotherapy-response and 32 were non-response. (a). Protein expression in tumor cells: (1). Exposure of tumor cells to chemotherapy results in a change of Annexin A2 and S100A expression (P < 0.05). (2). Annexin A2, S100A8 and S100A9 protein expression correlates with tumor response to chemotherapy (P < 0.05). (b). Protein expression in stromal cells: (1). Expression of Annexin A2, S100A8 and S100A9 was increased, but S100A2 and S100A4 was decreased after exposure to chemotherapy (P < 0.05). (2). Only S100A4 expression was associated with response to chemotherapy (P < 0.05). Multivariate analysis revealed that tumor size (P = 0.022), differentiation (P = 0.000), Annexin A2 expression in stromal cells (P = 0.009), and S100A8 expression in tumor cells (P = 0.008) were independent prognostic factors for progression-free survival of cervical cancer patients.

Conclusions

Expression of some of the measured proteins in tumor and stromal cells correlates with chemotherapy exposure, response to therapy, and progression-free survival.  相似文献   

8.

Objective

This study examines premenopausal and early menopause patients in a unique population with endometrial cancer and loss of mismatch repair (MMR) gene expression. The purpose is to compare clinical and pathologic differences in patients with loss of expression (LOE) to those with normal expression (NE).

Methods

Endometrial cancer patients under age 60 in-between 1998 and 2008 were identified from a single tumor registry. Clinical and pathologic data were abstracted from records. Staining for expression of MSH6, MSH2, MLH1, and PMS2 were performed on archived tissue blocks. Statistical analysis was performed.

Results

158 patients were analyzed; 58% Asian, 34% Pacific Islander, and 8% Caucasian. 31 demonstrated LOE of at least one MMR gene; 127 retained NE. 50% Caucasian, 21.9% Asian, and 12.5% Pacific Island populations had LOE of one or more MMR genes. LOE was found to have a higher incidence of Grade III (p = 0.0013) and stage 3-4 tumors (p = 0.0079), mean depth of myometrial invasion (p = 0.0019), lymphovascular space invasion (p = 0.0020), nodal metastases (p = 0.0157), and a lower incidence of Grade I (p = 0.0020) and stage 1A tumors (p = 0.0085). LOE had a significantly lower mean BMI (p = 0.0001). 35% of patients in the NE vs zero in the LOE group had a BMI greater than 40.

Conclusion

Younger patients with LOE endometrial cancer appear to represent a clinically significant subgroup of patients without features characteristically found in classic type 1 endometrial cancer generally demonstrating lower BMI and tumors associated with poor prognostic characteristics. It is unclear if the distinctive ethnicity found in Hawaii has a significant impact on outcome. Further investigation is necessary to identify appropriate treatment strategies.  相似文献   

9.

Objective

To determine whether women with low-grade serous ovarian cancer (LGSOC) have personal and family histories of breast and ovarian cancer that are less suggestive of Hereditary Breast and Ovarian Cancer (HBOC), as compared to women with high-grade serous ovarian cancer (HGSOC).

Methods

A single institution, case-control retrospective review of medical records was conducted. Personal demographics, personal cancer history, and family history of breast and ovarian cancer of women with LGSOC were collected and compared to controls with HGSOC, which is known to be associated with HBOC.

Results

195 cases of LGSOC and 386 controls with HGSOC were included in the analysis. Women with LGSOC were significantly less likely to have a first- or second-degree relative with breast or ovarian cancer (p = 0.0016). Additionally, when the personal and family histories were quantified using the AMyriad BRC mutation prevalence tables, women with LGSOC had lower scores indicative of a less suggestive family history for HBOC (p = 0.027).

Conclusions

In this study, women with LGSOC had family histories that were less suggestive of HBOC compared to women with HGSOC, especially when the degree of relatedness of affected relatives was taken into account. By beginning to determine if LGSOC is part of the tumor spectrum seen in HBOC, this study is an important step towards refining hereditary cancer risk assessment for women with ovarian cancer.  相似文献   

10.

Objectives

The aim of this study was (i) to characterise differentially expressed proteins in cervico-vaginal fluid (CVF) at the time of preterm labour onset and (ii) to confirm these studies in human CVF samples taken from women before and during spontaneous labour.

Study design

Preterm labour was induced in sheep (n = 5) via fetal dexamethasone infusion (1 mg/24 h). CVF samples were taken prior to dexamethasone infusion (0 h), 28 h after the start of dexamethasone infusion, and immediately prior to delivery. Two-dimensional gel electrophoresis (2-DE) and mass spectrometry (MS) were used to identify differentially expressed proteins. For the human studies, paired CVF samples were taken 5-9 days before labour and during spontaneous labour onset (n = 7).

Results

There was a 4.2-fold increase in α-enolase protein expression in sheep CVF during labour. Likewise, α-enolase protein expression was significantly increased during spontaneous human labour at term.

Conclusions

Alpha-enolase is known to be bound to neutrophils and interact in the immune response, and thus may play a role in inflammation associated with human labour.  相似文献   

11.

Objective

To compare the efficacy and safety of oral misoprostol with intracervical prostaglandin E2 (PGE2) gel for the active management of premature rupture of membranes (PROM) at term.

Methods

Women with pregnancies between 37 and 42 weeks presenting with PROM at term and a Bishop score of 5 or less were randomly assigned to receive either a 4-hourly oral dose of 50 µg of misoprostol up to a maximum of 3 doses or 2 applications of intracervical PGE2 gel at a 6-hour interval. Oxytocin was given if labor had not started after 12 hours.

Results

Twenty women in the misoprostol group (n = 31) delivered within 12 hours compared with 5 in the PGE2 group (n = 30) (< 0.001). The induction-to-delivery interval in the misoprostol group was shorter than in the PGE2 gel group (615 min vs 1070 min; < 0.001). The mode of delivery was comparable between the 2 groups (= 0.821). Abnormalities in uterine contractions and neonatal outcomes were also comparable. The requirement for oxytocin was lower and patient satisfaction was better in the misoprostol group.

Conclusion

Oral misoprostol is a safe and efficacious alternative to intracervical PGE2 gel in the active management of PROM at term.  相似文献   

12.

Objective

To assess the influence of polycystic ovary syndrome (PCOS) on respiratory events during sleep in nonobese Taiwanese women.

Method

Overnight polysomnography was recorded in 18 nonobese women with PCOS who had not received treatment (body mass index [BMI] 21.7 ± 0.57, age 29.1 ± 1.43 years) and in 10 age- and BMI-matched women without PCOS (BMI 20.9 ± 0.58, age 31.6 ± 3.87 years).

Results

The nonobese women with PCOS had a higher total apnea-hypopnea index (AHI) especially during the non-rapid eye movement stage (AHINREM) than the women who did not have PCOS. The women with PCOS had higher serum levels of high-sensitivity C-reactive protein (hsCRP) and this was positively correlated with AHIREM. Total testosterone level was positively correlated with AHINREM, and androstenedione was negatively correlated with AHINREM.

Conclusion

PCOS was directly linked to increased obstructive respiratory events during sleep in nonobese women in Taiwan.  相似文献   

13.

Objective

The aim of this study was to show glycemic and oxidative/antioxidative status (GOAS) in rats with estradiol valerate (EV)-induced polycystic ovarian syndrome.

Study design

Thirty mature female rats were randomly allocated to EV-induced PCOS, sham and control groups. Malondialdehyde, catalase and fasting blood glucose levels were determined in order to evaluate GOAS.

Results

There was a statistically significant difference between PCOS and control groups (p < 0.001) for hemolysate MDA while no difference was determined for either catalase or fasting blood glucose levels. On histopathological examination, the EV-induced PCOS group revealed disease-characteristic ovarian morphology.

Conclusion

There was an increased compensation for oxidative stress by antioxidative biologic mechanisms in EV-induced PCOS rats. Interestingly, the sole result derived from this limited study is that the sesame oil + EV combination is not appropriate for the evaluation of oxidant-antioxidant status and also glycemic condition in PCOS. This study demonstrates the need for better designed experimental studies to elucidate the aetiopathogenesis of PCOS via novel techniques.  相似文献   

14.

Objective

This study aims to assess the alterations in various HPV-related biomarkers 6 months post-treatment and how these relate to various risk factors and individual characteristics; their role for the prediction of treatment failure was also evaluated.

Material and methods

Design: Prospective observational study.Population: Women planning to undergo treatment for cervical intraepithelial neoplasia.Intervention: A liquid-based cytology sample was taken pre-operatively. This was tested for HPV genotyping, Nucleic Acid Sequence Based Amplification, flow cytometric evaluation and p16 immunostaining. A repeat LBC sample was obtained 6 months post-treatment and was tested for the same biomarkers.Outcomes: The alterations of the biomarkers 6 months post-treatment were recorded. Their relation to individual characteristics and risk factors (age, smoking, sexual history, use of condom, CIN grade, excision margin status, crypt involvement) as well as their role for the prediction of residual/recurrent disease were assessed.Analysis: The accuracy parameters (sensitivity, specificity, positive and negative predictive value and the likelihood ratios) of each biomarker for the prediction of recurrent/residual CIN were calculated.

Results

A total of 190 women were recruited. All biomarkers had significantly higher negativity rates post-treatment compared to pre-treatment ones. Multivariate analysis demonstrated that consistent condom use post-treatment significantly reduces the high-risk HPV positivity rates in comparison to no use (OR = 0.18; 95% CI: 0.09-0.38). Sensitivity and specificity for all high risk HPV DNA testing were 0.5/0.62, respectively; the relevant values for only type 16 or 18 DNA typing were 0.5/0.92, for NASBA 0.5/0.94, for flow 0.5/0.85 and for p16 0.25/0.93.

Conclusion

CIN treatment reduces positivity for all HPV-related biomarkers. Consistent condom use significantly reduces high-risk HPV positivity rates. More cases of treatment failures are required in order to specify whether different combinations of HPV-related biomarkers could enhance the accuracy of follow up, possibly in the form of a Scoring System that could allow tailored post-treatment surveillance.  相似文献   

15.

Objective

The study was aimed to evaluate the effectiveness, outcome, and pain intensity of the vaginal administration of misoprostol for the induction of abortion between 13 and 24 gestational weeks.

Study design

A retrospective study was conducted at our tertiary medical center from January 2006 to December 2009 on 122 consecutive women who underwent termination of pregnancy (TOP) in the mid-trimester. They were given 400 mcg of vaginal misoprostol every 6 h, up to four doses. The induction-to-abortion interval and the level of pain experienced during the process were assessed. Success was defined by the fetus being expelled within 48 h.

Results

Vaginal misoprostol was effective in 84% (98/122) of patients. The median duration of the induction-to-abortion interval was 16 (5-48) h. The induction-to-abortion interval was correlated with gestational age, while inversely correlated with parity. A correlation was also found between gestational age and pain intensity at 12 h from induction.

Conclusion

Misoprostol is safe and effective in mid-trimester abortion induction. The induction-to-abortion interval is shorter and abortion less painful with lower gestational age. Higher parity is also associated with shorter induction to abortion interval.  相似文献   

16.

Objective

To compare the in vitro sensitivity/resistance to patupilone versus paclitaxel in uterine and ovarian carcinosarcomas (CS).

Methods

Five primary carcinosarcoma cell lines, two from uterine and three of ovarian origin, were evaluated for growth rate and tested for their in vitro sensitivity/resistance to patupilone versus paclitaxel by MTS assays. To identify potential mechanisms underlying the differential sensitivity/resistance to patupilone, expression levels of β-tubulin III (TUBB3) were determined with quantitative-real-time-polymerase-chain-reaction (q-RT-PCR) in primary uterine and ovarian CS cell lines and in 26 uterine and 9 ovarian CS fresh-frozen-tissues.

Results

No appreciable difference in sensitivity to patupilone versus paclitaxel was noted in ovarian CS cell lines, or when uterine and ovarian CS cell lines were compared in their response to paclitaxel. In contrast, uterine CS cell lines were found to be significantly more sensitive to patupilone than to paclitaxel (P < 0.002) and demostrated lower IC50s to patupilone (range 0.76-0.93 nM) when compared to ovarian CS (range 1.9-3.4 nM, p < 0.05). Higher levels of TUBB3 were detected in uterine CS cell lines and fresh frozen tissues when compared to ovarian CS (P < 0.05).

Conclusions

Uterine CS cell lines are significantly more sensitive than ovarian CS cell lines to patupilone versus paclitaxel. High expression of TUBB3 is associated with sensitivity to patupilone in primary CS cell lines and may act as a genetic marker to predict chemotherapy efficacy. Patupilone may represent a promising drug in the treatment of this subset of rare but highly aggressive gynecological tumors.  相似文献   

17.
18.

Objective

CTR1 and CTR2 are copper transporters that have been associated with platinum sensitivity in several human cancers. We investigated the prognostic significance of CTR1 and CTR2 in women with ovarian carcinoma.

Materials and methods

We evaluated the expression of CTR1 and CTR2 using real-time PCR in 40 women with ovarian carcinoma (IIb = 2, IIIb = 2, IIIc = 30, IV = 6). We compared the expression of CTR1 and CTR2 with participants' clinicopathological findings.

Results

We found lower expression of CTR1 and CTR2 mRNA in ovarian cancer cells against normal ovarian tissue with statistically significant differences (p = 0.018 and 0.011, respectively). High CTR1 expression was a prognostic factor for improved survival after adjusting for age, tumor grade, stage, residual tumor, and CTR2 mRNA expression (HR, 0.35; 95% CI, 0.15-0.84). However, CTR2 expression did not exhibit any prognostic significance. Of the 20 women with elevated CTR1 expression, 17 (85%) were sensitive to platinum-based chemotherapy. Of the 7 women with low CTR1 expression and high CTR2 expression, 6 (85.7%) were resistant to platinum-based chemotherapy and had the shortest progression-free survival of all women in our study sample.

Conclusion

In our sample of 40 women with ovarian carcinoma, high CTR1 expression was significantly associated with sensitivity to platinum-based chemotherapy and longer progression-free survival. Conversely, low CTR1 expression and high CTR2 expression were significantly associated with resistance to platinum-based chemotherapy and the shortest survival.  相似文献   

19.

Objective

To evaluate the effect of transabdominal amnioinfusion on prolongation of pregnancy, and maternal and neonatal outcomes in preterm premature rupture of membranes (pPROM).

Methods

We conducted a prospective randomized controlled study of women with pPROM during singleton live pregnancy—between 26 and 33 + 6 weeks—whose amniotic fluid index (AFI) was less than the 5th percentile. The study group underwent transabdominal amnioinfusion at admission and then weekly if their AFI fell below the 5th percentile again. The control group received expectant management.

Results

The difference in the mean interval from pPROM to delivery between the groups was not statistically significant. Neonatal and maternal outcomes were significantly improved in the study group compared with the control group (fetal distress [10% vs 37%]; early neonatal sepsis [17% vs 63%]; neonatal mortality [17% vs 63%]; spontaneous delivery [83% vs 53%]; and postpartum sepsis [7% vs 33%]).

Conclusion

Transabdominal amnioinfusion reduced fetal distress, early neonatal sepsis, and neonatal mortality. In the study group, more participants delivered spontaneously and there were fewer cases of postpartum sepsis, although the pPROM-delivery interval was not increased.  相似文献   

20.

Objective

To determine the proportion of adolescent births in Van, Turkey, and to identify characteristics and related outcomes.

Methods

Mothers who gave birth at three maternity centers in Van, Turkey, were chosen randomly and were invited to complete a face-to-face questionnaire. Participants were asked for demographic information and pregnancy history. Pregnancy outcomes were obtained from the birth records.

Results

Of 1872 mothers who completed the questionnaires, 211 (11.3%) were younger than 19 years. Adolescent mothers showed significantly more inappropriate education for age (82.5% vs 70.1; P < 0.001) and were married to less educated partners (76.3% vs 59.4%; P < 0.001) following unofficial matrimonies (25.6% vs 10.7%; P < 0.001) than older mothers. There were no differences between the age groups in rates of arranged marriages with relatives, income, and household structure. Adolescent mothers reported higher rates of intimate partner violence (17.1% vs 10.8%; P = 0.008) and inadequate prenatal care use (28.4% vs 17.6%; P < 0.001) compared with older mothers. Adolescent births were associated with an increased risk for preterm delivery (P < 0.001) and low birth weight (P < 0.001).

Conclusions

Cultural factors rather than economic factors seem to be related to early age at marriage and adolescent childbearing, which are associated with poor birth outcomes.  相似文献   

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