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British Medical Journal Oct 1972
Topics: Birth Rate; Humans; Population Growth; United Kingdom
PubMed: 5077451
DOI: 10.1136/bmj.4.5832.113-b -
NCHS Data Brief Sep 2017This report presents several key demographic and maternal and infant health indicators using 2016 final birth data. Trends in the general fertility rate (the number of...
This report presents several key demographic and maternal and infant health indicators using 2016 final birth data. Trends in the general fertility rate (the number of births per 1,000 women aged 15–44), age-specific birth rates, cesarean delivery, preterm, and triplet and higher-order multiple birth rates are presented by age of mother. For each indicator, data for 2016 are compared with 2015, and also with a year representing a recent high or low rate.
Topics: Adolescent; Adult; Birth Rate; Cesarean Section; Female; Gestational Age; Humans; Maternal Age; Pregnancy; Pregnancy in Adolescence; Pregnancy, Multiple; Premature Birth; United States; Young Adult
PubMed: 29155684
DOI: No ID Found -
Journal of Ovarian Research Aug 2023To comprehensively evaluate the influence of dienogest (DNG) versus non-DNG pretreatment on in vitro fertilization and embryo transfer (IVF-ET) outcomes for patients... (Meta-Analysis)
Meta-Analysis
BACKGROUND
To comprehensively evaluate the influence of dienogest (DNG) versus non-DNG pretreatment on in vitro fertilization and embryo transfer (IVF-ET) outcomes for patients with endometriosis.
METHODS
PubMed, Embase, Cochrane Library, Web of Science, CNKI, WanFang, and VIP were comprehensively searched for relevant publications until September 14, 2022. Primary outcomes included clinical pregnancy rate and live birth rate. Secondary outcomes included retrieved oocytes, mature oocytes, blastocysts, growing follicles, transferrable embryos, fertilization rate, implantation rate, and miscarriage rate. Subgroup analysis was performed according to different grouping methods and embryo types.
RESULTS
Five studies of 568 females with endometriosis were involved in this systematic review and meta-analysis. DNG treatment exhibited similar effects to non-DNG treatment on either the primary or the secondary outcomes (all P > 0.05). The DNG group had a significantly greater clinical pregnancy rate than the non-hormonal treatment group (pooled relative risk [RR]: 2.055, 95% confidence interval [CI]: 1.275, 3.312, P = 0.003), and exhibited a significantly lower clinical pregnancy rate than the long gonadotropin-releasing hormone agonist (GnRH-a) group (RR: 0.542, 95%CI: 0.321, 0.916, P = 0.022). For patients undergoing fresh embryo transfer, the DNG group displayed a significantly greater clinical pregnancy rate versus the non-DNG group (pooled RR: 1.848, 95%CI: 1.234, 2.767, P = 0.003). Patients receiving DNG had a significantly greater live birth rate than those with non-hormonal treatment (pooled RR: 2.136, 95%CI: 1.223, 3.734, P = 0.008), while having a significantly lower live birth rate than the long GnRH-a group (RR: 0.441, 95%CI: 0.214, 0.907, P = 0.026). While using fresh embryos, patients with DNG treatment had an increased live birth rate, compared with those without DNG treatment (pooled RR: 2.132, 95%CI: 1.090, 4.169, P = 0.027).
CONCLUSION
DNG treatment may have similar effects to non-DNG treatment on IVF-ET outcomes. The clinical pregnancy rate and live birth rate after DNG treatment may be significantly higher than those after non-hormonal treatment. More evidence is warranted to corroborate these findings.
Topics: Female; Pregnancy; Humans; Endometriosis; Birth Rate; Fertilization in Vitro; Gonadotropin-Releasing Hormone
PubMed: 37587520
DOI: 10.1186/s13048-023-01245-8 -
Asian Journal of Surgery Mar 2022
Topics: Birth Rate; Endometriosis; Female; Humans; Laparoscopy; Pregnancy; Retrospective Studies
PubMed: 34998637
DOI: 10.1016/j.asjsur.2021.12.058 -
Journal of Perinatal Medicine Jan 2022Decreasing fertility implies considerable public health, societal, political, and international consequences. Induced abortion (IA) and the recent COVID-19 pandemic can...
OBJECTIVES
Decreasing fertility implies considerable public health, societal, political, and international consequences. Induced abortion (IA) and the recent COVID-19 pandemic can be contributing factors to it but these have not been adequately studied so far. The purpose of this paper is to explore the relation of IA incidence and the COVID-19 pandemic to declining rates of delivery, as per our Sardinian experience.
METHODS
We analyzed the registered data from the official Italian statistics surveys of deliveries and IA in the last 10 years from 2011 to 2020 in Sardinia.
RESULTS
A total of 106,557 deliveries occurred and a progressive decrease in the birth rate has been observed. A total of 18,250 IA occurred and a progressive decline has been observed here as well. The ratio between IA and deliveries remained constant over the decade. Between 2011 and 2019 a variation of -4.32% was observed for IA while in the last year, during the COVID-19 pandemic the decrease of the procedures was equal to -12.30%. For the deliveries, a mean variation of the -4.8% was observed between the 2011 and the 2019 while in the last year, during the COVID-19 pandemic the decrease was about -9%. Considering the about 30% reduction of live births between 2011 and 2020, there is an almost proportional reduction in IA.
CONCLUSIONS
Public policy responses to decreasing fertility, especially pronatalist ones, would be provided with evidence base about trends in delivery and IA and women's decision making.
Topics: Abortion, Induced; Birth Rate; COVID-19; Female; Humans; Italy; Pregnancy; Retrospective Studies
PubMed: 34388327
DOI: 10.1515/jpm-2021-0289 -
Acta Orthopaedica Oct 2016Background and purpose - There have been few studies on the effect of THR on pregnancy or delivery, and they have mainly been based on small and regional data. We...
Background and purpose - There have been few studies on the effect of THR on pregnancy or delivery, and they have mainly been based on small and regional data. We evaluated the birth rate nationwide in patients of fertile age with THR. Patients and methods - This nationwide population-based cohort study was based on registry data on 5,863 Finnish THR patients who had undergone a THR between 1985 and 2006, and who were aged 15-45 years (females) or 15-50 years (males) at the time of THR. The matched reference cohort consisted of 17,575 sex- and age-matched individuals (3 for each patient) who were alive and resident in Finland at the time of the patient's THR. Birth rate and Cox hazard ratios (HRs) with 95% CI for live births were calculated. Results - The birth rate after THR was approximately 20-60% lower in the male and female patient groups than in the reference individuals. The probability of having a live birth after THR was lower in female patients than in reference individuals, in all but the oldest age group (40-45 years). The same phenomenon was seen in male patients in all but the youngest age group (15-19 years). Adjustment for potential confounders increased the probability of THR patients having a live birth compared to reference individuals, but the birth rate was still clearly reduced (in men, adjusted HR =0.80, 95% CI: 0.69-0.92; in women, adjusted HR =0.56, 95% CI: 0.46-0.68). Interpretation - THR has a substantial effect on the birth rate of offspring, in both women and men. THR patients had a lower birth rate and probability of having a child after surgery, even after taking possible confounders into account.
Topics: Adolescent; Adult; Arthroplasty, Replacement, Hip; Birth Rate; Female; Finland; Follow-Up Studies; Forecasting; Humans; Infant, Newborn; Male; Middle Aged; Osteoarthritis, Hip; Pregnancy; Proportional Hazards Models; Registries; Retrospective Studies; Risk Factors; Young Adult
PubMed: 27248977
DOI: 10.1080/17453674.2016.1193396 -
National Vital Statistics Reports :... Sep 2013Objectives-This report presents preliminary data for 2012 on births in the United States. U.S. data on births are shown by age, live-birth order, race, and Hispanic...
Objectives-This report presents preliminary data for 2012 on births in the United States. U.S. data on births are shown by age, live-birth order, race, and Hispanic origin of mother. Data on marital status, cesarean delivery, preterm births, and low birthweight are also presented. Methods-Data in this report are based on 99.96% of 2012 births.Records for the few states with less than 100% of records received are weighted to independent control counts of all births received in state vital statistics offices in 2012. Comparisons are made with final 2011 data. Results-The preliminary number of births for the United States in 2012 was 3,952,937, essentially unchanged (not statistically significant) from 2011; the general fertility rate was 63.0 births per 1,000 women aged 15-44, down only slightly from 2011, after declining nearly 3% a year from 2007 through 2010. The number of births and fertility rate either declined or were unchanged for most race and Hispanic origin groups from 2011 to 2012; however, both the number of births and the fertility rate for Asian or Pacific Islander women rose in 2012 (7% and 4%, respectively). The birth rate for teenagers aged 15-19 was down 6% in 2012 (29.4 births per 1,000 teenagers aged 15-19), yet another historic low for the United States, with rates declining for younger and older teenagers and for nearly all race and Hispanic origin groups. The birth rate for women in their early 20s also declined in 2012, to a new record low of 83.1 births per 1,000 women. Birth rates for women in their 30s rose in 2012, as did the birth rate for women in their early 40s. The birth rate for women in their late 40s was unchanged. The nonmarital birth rate declined in 2012 (to 45.3 birth per 1,000 unmarried women aged 15-44), whereas the number of births to unmarried women rose 1% and the percentage of births to unmarried women was unchanged (at 40.7%). The cesarean delivery rate for the United States was unchanged in 2012 at 32.8%. The preterm birth rate fell for the sixth straight year in 2012 to 11.54%. The low birthweight rate also declined in 2012, to 7.99%.
Topics: Birth Rate; Cesarean Section; Hispanic or Latino; Humans; Parturition; Pregnancy in Adolescence; United States
PubMed: 24321416
DOI: No ID Found -
National Vital Statistics Reports :... Jun 2013This report presents 2011 data on U.S. births according to a wide variety of characteristics. Data are presented for maternal characteristics, including age, live-birth...
OBJECTIVES
This report presents 2011 data on U.S. births according to a wide variety of characteristics. Data are presented for maternal characteristics, including age, live-birth order, race and Hispanic origin, marital status, attendant at birth, method of delivery, and infant characteristics (e.g., period of gestation, birthweight, and plurality). Birth and fertility rates are presented by age, live-birth order, race and Hispanic origin, and marital status. Selected data by mother's state of residence and birth rates by age and race of father also are shown. Trends in fertility patterns and maternal and infant characteristics are described and interpreted.
METHODS
Descriptive tabulations of data reported on the birth certificates of the 3.95 million births that occurred in 2011 are presented. Denominators for population-based rates are postcensal estimates derived from the U.S. 2010 census. Birth and fertility rates for 2001-2009 are based on revised intercensal population estimates. Denominators for 2011 and 2010 rates for the specific Hispanic groups are derived from the American Community Survey; denominators for earlier years are derived from the Current Population Survey.
RESULTS
The number of births declined 1% in 2011 to 3,953,590. The general fertility rate also declined 1%, to 63.2 per 1,000 women aged 15-44. The teen birth rate fell 8%, to 31.3 per 1,000 women. Birth rates declined for women in their 20s, were unchanged for women aged 30-34, and rose for women aged 35-44. The total fertility rate (estimated number of births over a woman's lifetime) declined 2% to 1,894 per 1,000 women. The number and rate of births to unmarried women declined; the percentage of births to unmarried women was essentially stable at 40.7%. The cesarean delivery rate was unchanged from 2010 at 32.8%. The preterm birth rate declined for the fifth straight year to 11.73%; the low birthweight rate declined slightly to 8.10%. The twin birth rate was not significantly changed at 33.2 per 1,000 births; the rate of triplet and higher-order multiple births also was essentially stable at 137.0 per 100,000.
Topics: Adolescent; Adult; Black or African American; Birth Certificates; Birth Rate; Delivery, Obstetric; Female; Geography; Hispanic or Latino; Humans; Infant, Low Birth Weight; Infant, Newborn; Infant, Premature; Male; Marital Status; Maternal Age; Middle Aged; Multiple Birth Offspring; National Center for Health Statistics, U.S.; Paternal Age; Pregnancy; Pregnancy in Adolescence; United States; White People; Young Adult
PubMed: 24974591
DOI: No ID Found -
Industrial Health 2016
Topics: Aging; Birth Rate; Child Health; Humans; Japan; Poverty; Women's Health; Women, Working
PubMed: 27928131
DOI: 10.2486/indhealth.54-477 -
Pediatrics Jun 2015The number of births in the United States declined by 1% between 2012 and 2013, to a total of 3 932 181. The general fertility rate also declined 1% to 62.5 births...
The number of births in the United States declined by 1% between 2012 and 2013, to a total of 3 932 181. The general fertility rate also declined 1% to 62.5 births per 1000 women, the lowest rate ever reported. The total fertility rate was down by 1% in 2013 (to 1857.5 births per 1000 women). The teenage birth rate fell to another historic low in 2013, 26.5 births per 1000 women. Birth rates also declined for women 20 to 29 years, but the rates rose for women 30 to 39 and were unchanged for women 40 to 44. The percentage of all births that were to unmarried women declined slightly to 40.6% in 2013, from 40.7% in 2012. In 2013, the cesarean delivery rate declined to 32.7% from 32.8% for 2012. The preterm birth rate declined for the seventh straight year in 2013 to 11.39%; the low birth weight (LBW) rate was essentially unchanged at 8.02%. The infant mortality rate was 5.96 infant deaths per 1000 live births in 2013, down 13% from 2005 (6.86). The age-adjusted death rate for 2013 was 7.3 deaths per 1000 population, unchanged from 2012. Crude death rates for children aged 1 to 19 years declined to 24.0 per 100 000 population in 2013, from 24.8 in 2012. Unintentional injuries and suicide were, respectively, the first and second leading causes of death in this age group. These 2 causes of death jointly accounted for 45.7% of all deaths to children and adolescents in 2013.
Topics: Adolescent; Adult; Birth Rate; Child; Child Mortality; Child, Preschool; Female; Humans; Infant; Infant Mortality; Infant, Newborn; Male; United States; Vital Statistics; Young Adult
PubMed: 25941306
DOI: 10.1542/peds.2015-0434