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1.
JAMA Netw Open ; 7(1): e2350242, 2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-38175646

RESUMO

Importance: Short interpregnancy intervals (SIPIs) are associated with increased risk of adverse maternal and neonatal outcomes. Disparities exist across socioeconomic status, but there is little information on SIPIs among women experiencing homelessness. Objective: To investigate (1) differences in rates and characteristics of SIPIs between women experiencing homelessness and domiciled women, (2) whether the association of homelessness with SIPIs differs across races and ethnicities, and (3) whether the association between SIPIs of less than 6 months (very short interpregnancy interval [VSIPIs]) and maternal and neonatal outcomes differs between participant groups. Design, Setting, and Participants: This cohort study used a Colorado statewide database linking the Colorado All Payer Claims Database, Homeless Management Information System, death records, and infant birth records. Participants included all women who gave birth between January 1, 2016, and December 31, 2021. Data were analyzed from September 1, 2022, to May 10, 2023. Exposures: Homelessness and race and ethnicity. Main Outcomes and Measures: The primary outcome consisted of SIPI, a binary variable indicating whether the interval between delivery and conception of the subsequent pregnancy was shorter than 18 months. The association of VSIPI with maternal and neonatal outcomes was also tested. Results: A total of 77 494 women (mean [SD] age, 30.7 [5.3] years) were included in the analyses, of whom 636 (0.8%) were women experiencing homelessness. The mean (SD) age was 29.5 (5.4) years for women experiencing homelessness and 30.7 (5.3) years for domiciled women. In terms of race and ethnicity, 39.3% were Hispanic, 7.3% were non-Hispanic Black, and 48.4% were non-Hispanic White. Associations between homelessness and higher odds of SIPI (adjusted odds ratio [AOR], 1.23 [95% CI, 1.04-1.46]) were found. Smaller associations between homelessness and SIPI were found among non-Hispanic Black (AOR, 0.59 [95% CI, 0.37-0.96]) and non-Hispanic White (AOR, 0.57 [95% CI, 0.39-0.84]) women compared with Hispanic women. A greater association of VSIPI with emergency department visits and low birth weight was found among women experiencing homelessness compared with domiciled women, although no significant differences were detected. Conclusions and Relevance: In this cohort study of women who gave birth from 2016 to 2021, an association between homelessness and higher odds of SIPIs was found. These findings highlight the importance of conception management among women experiencing homelessness. Racial and ethnic disparities should be considered when designing interventions.


Assuntos
Intervalo entre Nascimentos , Pessoas Mal Alojadas , Lactente , Recém-Nascido , Gravidez , Humanos , Feminino , Adulto , Masculino , Estudos de Coortes , Colorado/epidemiologia , Problemas Sociais
2.
Obstet Gynecol ; 143(3): 459-462, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38176017

RESUMO

A growing number of studies are using birth certificate data, despite data-quality concerns, to study maternal morbidity and associated disparities. We examined whether conclusions about the incidence of maternal morbidity, including Black-White disparities, differ between birth certificate data and hospitalization data. Using linked birth certificate and hospitalization data from California and Michigan for 2018 (N=543,469), we found that maternal morbidity measures using birth certificate data alone are substantially underreported and have poor validity. Furthermore, the degree of underreporting in birth certificate data differs between Black and White individuals and results in erroneous inferences about disparities. Overall, Black-White disparities were more modest in the birth certificate data compared with the hospitalization data. Birth certificate data alone are inadequate for studies of maternal morbidity and associated racial disparities.


Assuntos
Declaração de Nascimento , Saúde Materna , Morbidade , Alta do Paciente , Feminino , Humanos , Gravidez , Hospitais , Incidência , Negro ou Afro-Americano , Brancos
3.
Ann Epidemiol ; 872023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37678645

RESUMO

PURPOSE: To evaluate if changes in preterm birth (PTB, <37 weeks of gestation) incidence differed between non-Hispanic (NH) Black and NH white births following the July 1995 Chicago heat wave-among the most severe U.S. heat waves since 1950. METHODS: We used an ecologic study design. We obtained birth data from January 1990-December 1996 from the National Vital Statistics File to calculate the mean monthly PTB incidence in Chicago's Cook County, Illinois. Births between July 1995 and February 1996 were potentially exposed to the heat wave in utero. We generated time series models for NH Black and NH white births, which incorporated synthetic controls of Cook County based on unexposed counties. We ran a secondary analysis considering socioeconomic status (SES). RESULTS: From 1990-1996, the mean monthly PTB incidence among NH Black births was 18.6% compared to 7.8% among NH white births. The mean monthly PTB incidence among NH Black births from August 1995-January 1996 was 16.7% higher than expected (three additional PTBs per 100 live births per month [95% confidence interval (CI): 1, 5]). A similar increase occurred among low-SES NH Black births. No increase appeared among NH white births. CONCLUSIONS: Severe heat waves may increase racial disparities in PTB incidence.


Assuntos
Disparidades nos Níveis de Saúde , Nascimento Prematuro , Feminino , Humanos , Recém-Nascido , Gravidez , Negro ou Afro-Americano , Chicago/epidemiologia , Etnicidade , Temperatura Alta , Nascimento Prematuro/epidemiologia , Brancos , Grupos Raciais
4.
Soc Sci Med ; 317: 115622, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36542927

RESUMO

Black birthing people are twice as likely to experience severe maternal morbidity (SMM) as their white counterparts. Structural racism provides a framework for understanding root causes of perinatal health disparities. Our objective was to investigate associations between measures of structural racism and severe maternal morbidity (SMM) among Black birthing people in the US. We linked delivery hospitalizations for Black birthing people in the National Inpatient Sample (2008-2011) with data from the American Community Survey 5-year estimates and the Vera Institute of Justice Incarceration Trends datasets (2008-2011). Structural racism measures included the Index of Concentration at the Extremes for race and income (i.e., racialized economic segregation) and Black-white incarceration inequality, assessed as quintiles by hospital county. Multilevel logistic regression assessed the relationship between these county-level indicators of structural racism and SMM. Black birthing people delivering in quintiles 5 (concentrated deprivation; OR = 1.45, 95% CI = 1.16-1.81) and 3 (OR = 1.27, 95% CI = 1.04-1.56) experienced increased odds of SMM compared to those in quintile 1 (concentrated privilege). After adjusting for individual characteristics, obstetric comorbidities, and hospital characteristics the odds of SMM remained elevated for Black birthing people delivering in quintiles 5 (aOR = 1.32, 95% CI = 1.02-1.71) and 3 (aOR = 1.24, 95% CI = 1.02-1.51). Delivering in the quintile with the highest incarceration inequality (Q5) was not significantly associated with SMM (aOR = 0.95, 95% CI = 0.72-1.25) compared to those delivering in counties with the lowest incarceration inequality (Q1). In this national-level study, racialized economic segregation was associated with SMM among Black birthing people. Our findings highlight the need to promote maternal and perinatal health equity through actionable policies that prioritize investment in communities experiencing deprivation.


Assuntos
Racismo , Feminino , Humanos , Gravidez , Comorbidade , Hospitalização , Renda , Racismo Sistêmico , População Negra
5.
Womens Health Issues ; 33(1): 67-76, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36117076

RESUMO

BACKGROUND: Postpartum care (PPC) is a key component of maternal health, particularly for people who use opioids during pregnancy. Little is known about the prevalence and correlates of PPC visit attendance among those using opioids compared with nonusers in a privately insured population. METHODS: A retrospective cohort study was conducted using nationwide private insurance claims between 2011 and 2017 (N = 1,291,352 women) comparing the following opioid use groups: nonusers, nonchronic prescription users, chronic prescription users, and women with opioid use disorder (OUD). Multivariable logistic and linear regressions evaluated the odds of PPC attendance and the mean time to an initial PPC visit for each user group. Stratified models identified factors associated with PPC attendance by opioid use type. RESULTS: Overall, 45% of the cohort attended a PPC visit and nearly 10% had any opioid use during pregnancy. More women in the three opioid use categories attended PPC than nonusers (50-56% vs. 45%). Opioid use regardless of type was associated with higher odds and earlier PPC visitation than women with no opioid use; nonchronic and chronic users had 17% and 40% greater odds of PPC than nonusers (adjusted odds ratio [aOR]: 1.17; 95% confidence interval [CI]: 1.16-1.19; aOR: 1.40, 95% CI: 1.34-1.46), whereas women with OUD had 7% higher odds (aOR: 1.07; 95% CI: 1.00-1.13). Antenatal care and psychiatric, hypertensive, and pain conditions were most strongly associated with higher odds of attending PPC; older maternal age was negatively associated with PPC. Stratified analysis showed opioid correlates varied similarly across user groups. CONCLUSIONS: PPC use was generally low in this study cohort of privately insured women. Women who used opioids and those with chronic conditions had greater odds of attending PPC. Improved efforts are needed to engage people in PPC, as well as service integration and coordination for people who use opioids during pregnancy.


Assuntos
Seguro , Transtornos Relacionados ao Uso de Opioides , Feminino , Gravidez , Humanos , Estudos Retrospectivos , Cuidado Pós-Natal , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Analgésicos Opioides/uso terapêutico
6.
Soc Psychiatry Psychiatr Epidemiol ; 57(11): 2181-2191, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35947167

RESUMO

OBJECTIVE: Prescription opioid use during pregnancy poses risk to maternal and infant health. However, there is limited research on proximate risk factors for prescription opioid use during pregnancy. This study aimed to evaluate the relationship between stressful life events experienced in the 12 months prior to birth and prescription opioid use during pregnancy. METHODS: Data from the 2019 Pregnancy Risk Assessment Monitoring System were analyzed (N = 17,812 women who delivered a live birth in 2019). Logistic regression and multinomial logistic regression analyses were used to assess the association between levels of stressful life events (0, 1-2, 3-5, or 6+) on (1) prescription opioid use, (2) combined opioid use (mono- or poly-opioid use), and (3) patterns of opioid use (pain management, opioid misuse) during pregnancy while controlling for socio-demographic characteristics, patterns of substance use prior to pregnancy, and pregnancy-related characteristics. RESULTS: Women with a greater accumulation of stressful life events in the 12 months prior to birth-especially 6 or more-had increased likelihood of prescription opioid use. Accumulating stressful life events were also associated with a higher risk of poly-opioid use, as well as using prescription opioids for pain management and patterns of opioid misuse. CONCLUSION: Stressful life events are a risk factor for prescription opioid use during pregnancy. Considering the harms posed by both stressors and opioid use for maternal and infant wellbeing, future research should assess efforts to prevent and manage stressful life events to reduce opioid use during pregnancy.


Assuntos
Analgésicos Opioides , Transtornos Relacionados ao Uso de Opioides , Lactente , Gravidez , Feminino , Humanos , Analgésicos Opioides/efeitos adversos , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Prescrições , Medição de Risco , Fatores de Risco
7.
PLoS One ; 17(7): e0271944, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35895735

RESUMO

Reproductive health program managers seek information about existing and potential clients' motivations, behaviors, and barriers to services. Using sequence and cluster analysis of contraceptive calendar data from the 2016-17 Burundi Demographic and Health Survey, we identified discrete clusters characterizing patterns in women's contraceptive and pregnancy behaviors over the previous 5 years. This study pairs these clusters with data on factors typically targeted in social behavior change interventions: knowledge, attitudes, and women's interactions with media and health services, to create composite profiles of women in these clusters. Of six clusters, three are characterized by contraceptive use and three are characterized by its absence. Media exposure and attitudes regarding sex preference, wife beating, and self-efficacy largely do not explain cluster membership. Contraceptive knowledge is positively associated with two clusters (Family Builder 1 and Traditional Mother) and negatively associated with a third (Quiet Calendar). Clusters also differ in their members' fertility desires, contraceptive intentions, and interactions with health services. Two "Family Builder" clusters are both characterized by the presence (but not timing) of multiple pregnancies in their calendar histories, but differ in that women with high contraceptive knowledge, intentions to use contraception, and well-articulated family size ideals are characteristic of one cluster (Family Builder 1), and low contraceptive knowledge, no use of contraception, and vague family size preferences are characteristic of the other (Family Builder 2). These results can guide reproductive health programs as they target social and behavioral change and other interventions to the unique subpopulations they seek to serve.


Assuntos
Anticoncepcionais , Conhecimentos, Atitudes e Prática em Saúde , Burundi , Anticoncepção , Comportamento Contraceptivo , Serviços de Planejamento Familiar , Feminino , Serviços de Saúde , Humanos , Gravidez
8.
PLoS One ; 17(2): e0263245, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35196334

RESUMO

In low- and middle-income countries (LMICs), economic downturns can lead to increased child mortality by affecting dietary, environmental, and care-seeking factors. This study estimates the potential loss of life in children under five years old attributable to economic downturns in 2020. We used a multi-level, mixed effects model to estimate the relationship between gross domestic product (GDP) per capita and under-5 mortality rates (U5MRs) specific to each of 129 LMICs. Public data were retrieved from the World Bank World Development Indicators database and the United Nations World Populations Prospects estimates for the years 1990-2020. Country-specific regression coefficients on the relationship between child mortality and GDP were used to estimate the impact on U5MR of reductions in GDP per capita of 5%, 10%, and 15%. A 5% reduction in GDP per capita in 2020 was estimated to cause an additional 282,996 deaths in children under 5 in 2020. At 10% and 15%, recessions led to higher losses of under-5 lives, increasing to 585,802 and 911,026 additional deaths, respectively. Nearly half of all the potential under-5 lives lost in LMICs were estimated to occur in Sub-Saharan Africa. Because most of these deaths will likely be due to nutrition and environmental factors amenable to intervention, countries should ensure continued investments in food supplementation, growth monitoring, and comprehensive primary health care to mitigate potential burdens.


Assuntos
Mortalidade da Criança/tendências , Países em Desenvolvimento , Produto Interno Bruto/tendências , África Subsaariana , Pré-Escolar , Suplementos Nutricionais , Meio Ambiente , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Pobreza , Atenção Primária à Saúde , Análise de Regressão , Incerteza
9.
Am J Prev Med ; 62(4): 548-557, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35135719

RESUMO

INTRODUCTION: High and increasing levels of pregnancy-related mortality and morbidity in the U.S. indicate that the underlying health status of reproductive-aged women may be far from optimal, yet few studies have examined mortality trends and disparities exclusively among this population. METHODS: All-cause and cause-specific mortality data for 1999-2019 were obtained from the Centers for Disease Control and Prevention WONDER Underlying Cause of Death database. Levels and trends in mortality between 1999 and 2019 for women aged 15-44 years stratified by age, race/ethnicity, and state were examined. Given the urgent need to address pregnancy-related health disparities, the correlation between all-cause and pregnancy-related mortality rates across states for the years 2015-2019 was also examined. RESULTS: Age-adjusted, all-cause mortality rates among women aged 15-44 years improved between 2003 and 2011 but worsened between 2011 and 2019. The recent increase in mortality among this age group was not driven solely by increases in external causes of death. Patterns differed by age, race/ethnicity, and geography, with non-Hispanic American Indian and Alaskan Native women having 2.3 and non-Hispanic Black women having 1.4 times the risk of all-cause mortality in 2019 compared with that of non-Hispanic White women. Age-adjusted all-cause mortality rates and pregnancy-related mortality rates were strongly correlated at the state level (r=0.75). CONCLUSIONS: Increasing mortality among reproductive-aged women has substantial implications for maternal, women's, and children's health. Given the high correlation between pregnancy-related mortality and all-cause mortality at the state level, addressing the structural factors that shape mortality risks may have the greatest likelihood of improving women's health outcomes across the life course.


Assuntos
Disparidades nos Níveis de Saúde , Mortalidade , Saúde da Mulher , Adolescente , Adulto , Distribuição por Idade , Centers for Disease Control and Prevention, U.S. , Etnicidade/estatística & dados numéricos , Feminino , Humanos , Mortalidade/etnologia , Mortalidade/tendências , Gravidez , Estados Unidos/epidemiologia , Saúde da Mulher/etnologia , Saúde da Mulher/estatística & dados numéricos , Adulto Jovem
10.
J Racial Ethn Health Disparities ; 9(3): 840-848, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-33783756

RESUMO

Periviable infants (i.e., born before 26 complete weeks of gestation) represent fewer than .5% of births in the US but account for 40% of infant mortality and 20% of billed hospital obstetric costs. African American women contribute about 14% of live births in the US, but these include nearly a third of the country's periviable births. Consistent with theory and with periviable births among other race/ethnicity groups, males predominate among African American periviable births in stressed populations. We test the hypothesis that the disparity in periviable male births among African American and non-Hispanic white populations responds to the African American unemployment rate because that indicator not only traces, but also contributes to, the prevalence of stress in the population. We use time-series methods that control for autocorrelation including secular trends, seasonality, and the tendency to remain elevated or depressed after high or low values. The racial disparity in male periviable birth increases by 4.45% for each percentage point increase in the unemployment rate of African Americans above its expected value. We infer that unemployment-a population stressor over which our institutions exercise considerable control-affects the disparity between African American and non-Hispanic white periviable births in the US.


Assuntos
Negro ou Afro-Americano , Desemprego , Feminino , Humanos , Lactente , Mortalidade Infantil , Nascido Vivo , Masculino , Parto , Gravidez , Estados Unidos/epidemiologia
11.
Environ Res Lett ; 16(3)2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34531925

RESUMO

Coal has historically been a primary energy source in the United States. The byproducts of coal combustion, such as fine particulate matter (PM2.5), have increasingly been associated with adverse birth outcomes. The goal of this study was to leverage the current progressive transition away from coal in the United States (U.S.) to assess whether coal PM2.5 is associated with preterm birth rates and whether this association differs by maternal Black/White race/ethnicity. Using a novel dispersion modeling approach, we estimated PM2.5 pollution from coal-fired power plants nationwide at the county-level during the study period (2000-2018). We also obtained county-level preterm birth rates for non-Hispanic White and non-Hispanic Black mothers. We used a generalized additive mixed model to estimate the relationship between coal PM2.5 and preterm birth rates, overall and stratified by maternal race. We included a natural spline to allow for non-linearity in the concentration-response curve. We observed a positive non-linear relationship between coal PM2.5 and preterm birth rate, which plateaued at higher levels of pollution. We also observed differential associations by maternal race; the association was stronger for White women, especially at higher levels of coal PM2.5 (> 2.0 µg/m3). Our findings suggest that the transition away from coal may reduce preterm birth rates in the U.S.

12.
Womens Health Issues ; 31(1): 31-39, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32839092

RESUMO

BACKGROUND: Individuals' perceptions of their fecundity, or biological ability to bear children, have important implications for health behaviors, including infertility help-seeking and contraceptive use. Little research has examined these perceptions among U.S. women. METHODS: This cross-sectional study examines perceptions of one's own fecundity among U.S. women aged 24 to 32 who participated in the 2009-2011 rounds of the National Longitudinal Survey of Youth (1997) cohort. Analyses were limited to 3,088 women who indicated that they or their partners never received a doctor's diagnosis regarding fertility difficulties. RESULTS: Of the women in the sample, 67% perceived their hypothetical chances of becoming pregnant as very likely; the remainder perceived their chances as somewhat likely (13%), not as likely (15%), or provided a "don't know" response (6%). Twenty-six percent of Black women and 19% of Latina women perceived themselves as not very likely to become pregnant, compared with only 12% among non-Black/non-Latina women (p < .001). Only 6% of women with a college degree perceived their chances of becoming pregnant as not very likely, compared with 36% among women without a high school degree (p < .001). Racial/ethnic and educational differences persisted in fully adjusted models. Other factors associated with fecundity self-perceptions include partnership status, parity, fertility expectations, sexual activity, prolonged exposure to unprotected intercourse for at least 6 and/or 12 months without becoming pregnant, and self-rated health. CONCLUSIONS: Findings indicate that self-perceived fecundity differs systematically by demographic and other characteristics. This phenomenon should be investigated further to understand how it may influence disparities in health behaviors and outcomes.


Assuntos
Fertilidade , Comportamento Sexual , Adolescente , Adulto , Criança , Estudos Transversais , Feminino , Humanos , Gravidez , Parceiros Sexuais , Sexo sem Proteção , Adulto Jovem
13.
Demography ; 57(6): 2035-2045, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33169340

RESUMO

The U.S. period total fertility rate has declined steadily since the Great Recession, reaching 1.73 children in 2018, the lowest level since the 1970s. This pattern could mean that current childbearing cohorts will end up with fewer children than previous cohorts, or this same pattern could be an artifact of a tempo distortion if individuals are simply postponing births they plan to eventually have. In this research note, we use data on current parity and future intended births from the 2006-2017 National Survey of Family Growth to shed light on this issue. We find that total intended parity declined (from 2.26 in 2006-2010 to 2.16 children in 2013-2017), and the proportion intending to remain childless increased slightly. Decomposition indicates that the decline was not due to changes in population composition but rather changes in the subgroups' rates themselves. The decline in intended parity is particularly notable at young ages and among those who are Hispanic. These results indicate that although tempo distortion is likely an important contributor to the decline in TFR, it is not the sole explanation: U.S. individuals are intending to have fewer children than their immediate predecessors, which may translate into a decline in cohort completed parity. However, the change in intended parity is modest, and average intended parity remains above two children.


Assuntos
Características da Família , Comportamento Reprodutivo/estatística & dados numéricos , Adolescente , Adulto , Fatores Etários , Escolaridade , Feminino , Humanos , Intenção , Masculino , Paridade , Grupos Raciais , Estados Unidos , Adulto Jovem
14.
Proc Natl Acad Sci U S A ; 117(28): 16273-16282, 2020 07 14.
Artigo em Inglês | MEDLINE | ID: mdl-32571904

RESUMO

Behavioral and social scientists have identified many nonbiological predictors of mortality. An important limitation of much of this research, however, is that risk factors are not studied in comparison with one another or from across different fields of research. It therefore remains unclear which factors should be prioritized for interventions and policy to reduce mortality risk. In the current investigation, we compare 57 factors within a multidisciplinary framework. These include (i) adverse socioeconomic and psychosocial experiences during childhood and (ii) socioeconomic conditions, (iii) health behaviors, (iv) social connections, (v) psychological characteristics, and (vi) adverse experiences during adulthood. The current prospective cohort investigation with 13,611 adults from 52 to 104 y of age (mean age 69.3 y) from the nationally representative Health and Retirement Study used weighted traditional (i.e., multivariate Cox regressions) and machine-learning (i.e., lasso, random forest analysis) statistical approaches to identify the leading predictors of mortality over 6 y of follow-up time. We demonstrate that, in addition to the well-established behavioral risk factors of smoking, alcohol abuse, and lack of physical activity, economic (e.g., recent financial difficulties, unemployment history), social (e.g., childhood adversity, divorce history), and psychological (e.g., negative affectivity) factors were also among the strongest predictors of mortality among older American adults. The strength of these predictors should be used to guide future transdisciplinary investigations and intervention studies across the fields of epidemiology, psychology, sociology, economics, and medicine to understand how changes in these factors alter individual mortality risk.


Assuntos
Previsões , Mortalidade/tendências , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Comunicação Interdisciplinar , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Estados Unidos/epidemiologia
15.
Soc Sci Med ; 233: 281-284, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-29274689

RESUMO

Periviable infants (i.e., those born in the 20th through 26th weeks of gestation) suffer much morbidity and approximately half die in the first year of life. Attempts to explain and predict these births disproportionately invoke a "dysregulation" narrative. Research inspired by this narrative has not led to efficacious interventions. The clinical community has, therefore, urged novel approaches to the problem. We aim to provoke debate by offering the theory, inferred from microeconomics, that risk tolerant women carry, without cognitive involvement, high risk fetuses farther into pregnancy than do other women. These extended high-risk pregnancies historically ended in stillbirth but modern obstetric practices now convert a fraction to periviable births. We argue that this theory deserves testing because it suggests inexpensive and noninvasive screening for pregnancies that might benefit from the costly and invasive interventions clinical research will likely devise.


Assuntos
Economia , Viabilidade Fetal , Mortalidade Infantil , Lactente Extremamente Prematuro/fisiologia , Feminino , Humanos , Lactente , Recém-Nascido , Gravidez , Segundo Trimestre da Gravidez , Medição de Risco , Natimorto
16.
Health Aff (Millwood) ; 36(4): 714-722, 2017 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-28373338

RESUMO

Mexico has the second-highest prevalence of cesarean deliveries in the Americas, behind Brazil. Having had a previous cesarean delivery is highly predictive of having subsequent cesarean deliveries, yet evidence on the drivers of primary (that is, first-time) cesarean deliveries is sparse. Using 2014 Mexican birth certificate data and performing population-level analyses of data on 600,124 first-time mothers giving birth after at least thirty-seven weeks of gestation, we examined the prevalence and determinants of primary cesarean deliveries. We found a very high prevalence of cesarean deliveries among these women-48.7 percent-and wide variations across insurance coverage types. Enrollees in Seguro Popular, the public health insurance program introduced in 2003 for the previously uninsured and gradually rolled out nationally, had a cesarean rate of 40 percent, while women insured through the Social Security Institute for Civil Servants had a rate of 78 percent. The lower risk of primary cesarean deliveries among Seguro Popular enrollees persisted after adjustment for covariates. Rates of primary cesarean deliveries were particularly high in private birthing facilities for all first-time mothers. Reducing the rate of cesarean deliveries in Mexico will require interventions across types of insurance and birthing facilities and will also require targeted public health messaging.


Assuntos
Cesárea/estatística & dados numéricos , Disparidades nos Níveis de Saúde , Mães/estatística & dados numéricos , Adolescente , Adulto , Declaração de Nascimento , Cesárea/tendências , Feminino , Humanos , Cobertura do Seguro/estatística & dados numéricos , Seguro Saúde/estatística & dados numéricos , Pessoas sem Cobertura de Seguro de Saúde , México/epidemiologia , Gravidez , Prevalência , Fatores de Risco
17.
Econ Hum Biol ; 21: 56-63, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-26744999

RESUMO

Epidemiological evidence indicates an elevated risk for stroke among stressed persons, in general, and among individuals who have lost their job, in particular. We, therefore, tested the hypothesis that stroke accounted for a larger fraction of deaths during the Great Recession than expected from other deaths and from trends, cycles, and other forms of autocorrelation. Based on vital statistics death data from California spanning 132 months from January 2000 through December 2010, we found support for the hypothesis. These findings appear attributable to non-Hispanic white men, who experienced a 5% increase in their monthly odds of stroke-attributable death. Total mortality in this group, however, did not increase. Findings suggest that 879 deaths among older white men shifted from other causes to stroke during the 36 months following the start of the Great Recession. We infer the Great Recession may have affected social, biologic, and behavioral risk factors that altered the life histories of older white men in ways that shifted mortality risk toward stroke.


Assuntos
Recessão Econômica/estatística & dados numéricos , Acidente Vascular Cerebral/mortalidade , California/epidemiologia , Feminino , Humanos , Masculino , Grupos Raciais/estatística & dados numéricos , Fatores de Risco , Distribuição por Sexo , Acidente Vascular Cerebral/etnologia
18.
J Epidemiol Community Health ; 69(11): 1071-6, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26188057

RESUMO

BACKGROUND: Researchers often invoke a mortality displacement or 'harvesting' mechanism to explain mortality patterns, such that those with underlying health vulnerabilities die sooner than expected in response to environmental phenomena, such as heat waves, cold spells and air pollution. It is unclear if this displacement mechanism might also explain observed increases in suicide following economic contraction, or if suicides are induced in persons otherwise unlikely to engage in self-destructive behaviour. Here, we test two competing hypotheses explaining an observed increase in suicides following unemployment-induction or displacement. METHODS: We apply time series methods to monthly suicide and unemployment data from Sweden for the years 2000-2011. Tests are conducted separately for working age (20-64 years old) men and women as well as older (aged 65 years and older) men and women. RESULTS: Displacement appeared among older men and women; an unexpected rise in unemployment predicted an increase in suicides 6 months later, followed by a significant decrease 8 months later. Induction appeared among working age men, but not among working age women; an unexpected rise in unemployment predicted an increase in suicides 4-6 months later. CONCLUSIONS: Displacement and induction both appear to have operated following unexpected labour market contractions in Sweden, though with different population segments.


Assuntos
Recessão Econômica/estatística & dados numéricos , Suicídio/estatística & dados numéricos , Desemprego/estatística & dados numéricos , Adulto , Distribuição por Idade , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Distribuição por Sexo , Suicídio/economia , Suécia/epidemiologia , Adulto Jovem
19.
Twin Res Hum Genet ; 18(3): 314-20, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25917386

RESUMO

Male twin gestations exhibit higher incidence of fetal morbidity and mortality than singleton gestations. From an evolutionary perspective, the relatively high rates of infant and child mortality among male twins born into threatening environments reduce the fitness of these gestations, making them more vulnerable to fetal loss. Women do not perceive choosing to spontaneously abort gestations although the outcome may result from estimates, made without awareness, of the risks of continuing a pregnancy. Here, we examine whether the non-conscious decisional biology of gestation can be linked to conscious risk aversion. We test this speculation by measuring the association between household surveys in Sweden that gauge financial risk aversion in the population and the frequency of twins among live male births. We used time-series regression methods to estimate our suspected associations and Box-Jenkins modeling to ensure that autocorrelation did not confound the estimation or reduce its efficiency. We found, consistent with theory, that financial risk aversion in the population correlates inversely with the odds of a twin among Swedish males born two months later. The odds of a twin among males fell by approximately 3.5% two months after unexpectedly great risk aversion in the population. This work implies that shocks that affect population risk aversion carry implications for fetal loss in vulnerable twin pregnancies.


Assuntos
Evolução Biológica , Perda do Embrião/psicologia , Gravidez de Gêmeos/estatística & dados numéricos , Assunção de Riscos , Adulto , Comportamento do Consumidor/economia , Perda do Embrião/epidemiologia , Feminino , Humanos , Recém-Nascido , Nascido Vivo , Masculino , Modelos Biológicos , Modelos Estatísticos , Gravidez , Gravidez de Gêmeos/fisiologia , Gravidez de Gêmeos/psicologia , Seleção Genética , Razão de Masculinidade , Suécia/epidemiologia , Inconsciente Psicológico
20.
Am J Mens Health ; 2(1): 40-56, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19477769

RESUMO

Adolescent males are practicing safer sexual behaviors and experiencing healthier outcomes than their predecessors. In recent years, adolescent males have tended to start having sex later in life, have fewer sexual partners, use condoms and other contraceptive methods more often, and father fewer children. Yet sexual activity during adolescence remains the norm, and thus adolescent sexual and reproductive health (SRH) remains an important concern. Moreover, large disparities remain in risk and outcomes according to race/ethnicity, sexual orientation, social connectivity, and where men live. Policy and program advances have been limited. Adolescent males are less likely than they were a decade ago to be receiving broad-based SRH information in school, and their access to clinical services has increased only marginally. Most new funding has been provided for ineffective abstinence-only education programs. Prerequisites for continued progress include research to fill in gaps in our knowledge, arriving at societal consensus around key controversies, and new tactics and allies in the political arena.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Medicina Reprodutiva/tendências , Sexo Seguro/estatística & dados numéricos , Comportamento Sexual/estatística & dados numéricos , Adolescente , Comportamento do Adolescente , Previsões , Guias como Assunto , Humanos , Masculino , Pesquisa , Medição de Risco , Parceiros Sexuais , Fatores Socioeconômicos , Estados Unidos
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