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1.
PURPOSE. This study examines whether psychosocial perinatal care services developed through community partnerships and cultural deference with attention to individual women's health issues, had an assocaited impact on use of prenatal care, birth outcomes and perinatal care costs for the three participating Asian Pacific Islander American ethinc groups. METHODS. The use of prenatal care visits and birth outcomes for women in the Malama program were compared to those for women of the same etnic groups in the community prior to the introduction of the program. Data on program participants from 1992 to 1994 were compared to birth certificate data on Hawaiian, Filipino and Japanese women from 1988 to 1991. Costs of providing Malama prenatal services were determined from data provided by cost accounting and encounter data systems for the program. SUMMARY OF IMPORTANT FINDINGS. The use of prenatal care visits and birth outcomes were significantly lower for Malama program participants than for women of the same ethnic groups prior to the introduction of the program. The costs of the prenatal program services were $846 to $920 per woman. The expected savings in medical costs per infant with the improved preterm birth rates were $680 per infant. Thus 75% to 80% of the costs of the services were likely to be saved in lower medical costs of the infants. MAJOR CONCLUSIONS. Programs that use community approaches and caring servies delivered in a cultural context, like the Malama model, have a potential for improving the use of prenatal care and birth outcomes at reasonable costs. RELEVANCE TO ASIAN PACIFIC ISLANDER AMERICAN POPULATIONS. The Malama approach to ascertaining cultural preferences for the content and delivery of care should prove useful in addressing public health goals of improved pregnancy outcomes for diverse groups of Asian Americans and Pacific Islanders. KEY WORDS. Asian Americans/Pacific Islanders, pregnancy, prenatal care, low birthweight, preterm birth, cultural competency, community partnerships, costs, cost effectiveness.  相似文献   

2.
Summary. This study compares the maternal sociodemographic and prenatal care characteristics and birth outcomes of US resident white and Japanese-American mothers, using data from the state of Hawaii. The specific focus is to determine to what extent these factors can explain variations in newborn maturity and mortality indicators. Single livebirths to resident, non-military dependent white and Japanese-American mothers were selected for analysis from the 1979–1990 linked livebirth-infant death files from Hawaii. Compared with white mothers, Japanese-American mothers were significantly more likely to be married, age 18 years and older, have higher educational attainment, and have adequate prenatal care utilisation. The majority of Japanese-American mothers were born in Hawaii, while the majority of white mothers were born on the US mainland. The mean birthweight of Japanese-American infants was 200 g lighter than that of white infants. Infant mortality rates (IMRs) for both groups were below the US Year 2000 Health Objective. After controlling for maternal sociodemographic and prenatal care factors with logistic regression, Japanese-American infants had significantly higher risks of low birthweight, preterm and very preterm birth and of being small-for-gestational age. These findings indicate that populations with preferential maternal sociodemographic and prenatal care risk indicators may still exhibit higher low birthweight percentages, but achieve comparatively low IMRs.  相似文献   

3.
Numerous studies have shown that the receipt of adequate prenatal care is associated with improvements in pregnancy outcome, particularly a reduction in the risk of low birth weight. Since medical costs for these low birth weight infants are several times higher than for normal birth weight infants, one would expect that medical costs for newborns would be lower for babies whose mothers have had adequate prenatal care than for those with inadequate prenatal care. Explored in this paper is whether the reduction in Medicaid costs for newborn and post-partum maternal care is greater than the increase in prenatal costs for a Medicaid population. The analysis used a file of 12,023 Missouri Medicaid records linked with the corresponding 1988 birth certificates. A modified version of the Kessner index was used to define the adequacy of prenatal care. Prenatal care costs were $233 higher for pregnancies with adequate prenatal care than for those in which prenatal care was inadequate. Newborn and post-partum costs starting within 60 days after the birth were $347 lower for the adequate prenatal care pregnancies, resulting in a savings of $1.49 for each extra $1 spent on prenatal care. Among the other factors studied in determining this benefit to cost ratio were global billing, Supplemental Food Program for Women, Infants, and Children (WIC), and participation in Medicaid under the expanded eligibility provisions that were effective in Missouri in 1988.  相似文献   

4.
To explore racial-ethnic disparities in adverse pregnancy outcomes among Medicaid recipients, and to estimate excess Medicaid costs associated with the disparities. Cross-sectional study of adverse pregnancy outcomes and Medicaid payments using data from Medicaid Analytic eXtract files on all Medicaid enrollees in fourteen southern states. Compared to other racial and ethnic groups, African American women tended to be younger, more likely to have a Cesarean section, to stay longer in the hospital and to incur higher Medicaid costs. African-American women were also more likely to experience preeclampsia, placental abruption, preterm birth, small birth size for gestational age, and fetal death/stillbirth. Eliminating racial disparities in adverse pregnancy outcomes (not counting infant costs), could generate Medicaid cost savings of $114 to $214 million per year in these 14 states. Despite having the same insurance coverage and meeting the same poverty guidelines for Medicaid eligibility, African American women have a higher rate of adverse pregnancy outcomes than White or Hispanic women. Racial disparities in adverse pregnancy outcomes not only represent potentially preventable human suffering, but also avoidable economic costs. There is a significant financial return-on-investment opportunity tied to eliminating racial disparities in birth outcomes. With the Affordable Care Act expansion of Medicaid coverage for the year 2014, Medicaid could be powerful public health tool for improving pregnancy outcomes.  相似文献   

5.
OBJECTIVE: To conduct the first national study that assesses whether the Medicaid expansions for pregnant women, legislated by Congress over a decade ago, met the policy objectives of improved access to care and birth outcomes for poor and near-poor women. DATA SOURCES/STUDY SETTING: Data on 8.1 million births using the 1980, 1986, and 1993 National Natality Files. We use births from all areas of the United States except California, Texas, Washington, and upstate New York. METHODS: We conduct a before and after analysis that compares obstetrical outcomes by race and socioeconomic status for the periods 1980-86 and 1986-93. We examine whether women of low socioeconomic status showed greater improvements in outcomes during the 1986-93 period compared to the 1980-86 period. We analyze two obstetrical outcomes: the rate of late initiation of prenatal care and the rate of low birth weight. DATA COLLECTION: Natality data were aggregated to race, socioeconomic status, age, and parity groups. RESULTS: During the 1986-93 period, rates of late initiation of prenatal care decreased by 6.0 to 7.8 percentage points beyond changes estimated for the 1980-86 period for both white and African American women of low socioeconomic status. For some white women of low socioeconomic status, the rate of low birth weight was reduced by 0.26 to 0.37 percentage points between 1986 and 1993 relative to the earlier period. Other white women of low socioeconomic status and all African American women of low socioeconomic status showed no relative improvement in the rate of low birth weight during the 1986-93 period. CONCLUSIONS: The expansions in Medicaid lead to significant improvements in prenatal care utilization among women of low socioeconomic status. The emerging lesson from the Medicaid expansions, however, is that increased access to primary care is not adequate if the goal is to narrow the gap in newborn health between poor and nonpoor populations.  相似文献   

6.
PURPOSE: We investigated differences in health service use and pregnancy outcomes among women enrolled in Medicaid under eligibility categories for the blind and disabled and those enrolled under other eligibility categories. METHODS: We used Medicaid enrollment and claims data to create episodes of pregnancy- and delivery-related care for women with and without disabilities who had Medicaid-covered deliveries in Florida, Georgia, and New Jersey during 1995 and Texas during 1997. We linked birth certificate information on prenatal care and birth outcomes to the files for Georgia and Texas. We then computed the unadjusted and adjusted odds ratios for the receipt of selected routine prenatal and illness-related services and the occurrence of selected pregnancy outcomes among women with disabilities relative to women without disabilities. FINDINGS: In all states, women with disabilities were more likely than women without disabilities to have had continuous Medicaid coverage from preconception through the postnatal period. Women with disabilities were equally or less likely to have received adequate prenatal care compared to women without disabilities in the two study states with these data. They were also more likely to have had emergency room visits, hospital admissions during pregnancy, cesarean deliveries, and readmissions within 3 months of delivery in all study states. We also found women with disabilities to have been more likely to deliver preterm and low birthweight infants. CONCLUSION: Our results suggest that opportunities exist to improve access to prenatal care among women with disabilities enrolled in Medicaid under blind and disabled eligibility categories who become pregnant.  相似文献   

7.
BACKGROUND. Care coordination is an important component of the enhanced prenatal care services provided under the recent expansions of the Medicaid program. The effect of maternity care coordination services on birth outcomes in North Carolina was assessed by comparing women on Medicaid who did and did not receive these services. METHODS. Health program data files, including Medicaid claims paid for maternity care coordination, were linked to 1988 and 1989 live birth certificates. Simple comparisons of percentages and rates were supplemented by a logistic regression analysis. RESULTS. Among women on Medicaid who did not receive maternity care coordination services, the low birth weight rate was 21% higher, the very low birth weight rate was 62% higher, and the infant mortality rate was 23% higher than among women on Medicaid who did receive such services. It was estimated that, for each $1.00 spent on maternity care coordination, Medicaid saved $2.02 in medical costs for newborns up to 60 days of age. Among the women who did receive maternity care coordination, those receiving it for 3 or more months had better outcomes than those receiving it for less than 3 months. CONCLUSIONS: These results suggest that maternity care coordination can be effective in reducing low birth weight, infant mortality, and newborn medical care costs among babies born to women in poverty.  相似文献   

8.
Risk status and pregnancy outcome among medicaid recipients   总被引:4,自引:0,他引:4  
Although Medicaid has increased access to medical care for low-income pregnant women, the Medicaid population remains at high risk for poor pregnancy outcomes. In 1983 the Michigan Department of Public Health conducted 1 week of in-hospital, postpartum interviews addressing risk factors for poor pregnancy outcome among 1,945 women. These births represented over 90% of the births during the study period and constituted a sample of approximately 1.5% of the yearly births in Michigan. Of these women, 24.6% reported receiving Medicaid during pregnancy. The demographic characteristics of the Medicaid women placed them at greater risk for poor pregnancy outcomes than either insured or uninsured women. In terms of medical services, Medicaid recipients began prenatal care later and had fewer visits. In terms of behavioral risks, more Medicaid recipients reported tobacco and alcohol use than did the other mothers. Finally, the infants of Medicaid recipients were 200 g lighter than the other infants. We suggest that the Medicaid program--the major source of prenatal health care for these women--is not adequate to address their risks for poor pregnancy outcomes.  相似文献   

9.
Policy Points
  • Birth center services must be covered under Medicaid per federal mandate, but reimbursement and other policy barriers prevent birth centers from serving more Medicaid patients.
  • Midwifery care provided through birth centers improves maternal and infant outcomes and lowers costs for Medicaid beneficiaries. Birth centers offer an array of birth options and have resources to care for patients with medical and psychosocial risks.
  • Addressing the barriers identified in this study would promote birth centers’ participation in Medicaid, leading to better outcomes for Medicaid‐covered mothers and newborns and significant savings for the Medicaid program.
ContextMidwifery care, particularly when offered through birth centers, has shown promise in both improving pregnancy outcomes and containing costs. The national evaluation of Strong Start for Mothers and Newborns II, an initiative that tested enhanced prenatal care models for Medicaid beneficiaries, found that women receiving prenatal care at Strong Start birth centers experienced superior birth outcomes compared to matched and adjusted counterparts in typical Medicaid care. We use qualitative evaluation data to investigate birth centers’ experiences participating in Medicaid, and identify policies that influence Medicaid beneficiaries’ access to midwives and birth centers.MethodsWe analyzed data from more than 200 key informant interviews and 40 focus groups conducted during four case study rounds; a phone‐based survey of Medicaid officials in Strong Start states; and an Internet‐based survey of birth center sites. We identified themes related to access to midwives and birth centers, focusing on influential Medicaid policies.FindingsMedicaid beneficiaries chose birth center care because they preferred midwife providers, wanted a more natural birth experience, or in some cases sought certain pain relief methods or birth procedures not available at hospitals. However, Medicaid enrollees currently have less access to birth centers than privately insured women. Many birth centers have difficulty contracting with managed care organizations and participating in Medicaid value‐based delivery system reforms, and birth center reimbursement rates are sometimes too low to cover the actual cost of care. Some birth centers significantly limit Medicaid business because of low reimbursement rates and threats to facility sustainability.ConclusionsMedicaid beneficiaries do not have the same access to maternity care providers and birth settings as their privately insured counterparts. Medicaid policy barriers prevent some birth centers from serving more Medicaid patients, or threaten the financial sustainability of centers. By addressing these barriers, more Medicaid beneficiaries could access care that is associated with positive birth outcomes for mothers and newborns, and the Medicaid program could reap significant savings.  相似文献   

10.
Despite expansions in the public insurance coverage of pregnant women, concerns over poor birth outcomes remain. Poor birth outcomes occur among publicly and privately insured women, however, thereby imposing excess costs on employers and their insurers. Data from a large sample of privately insured for 1996 are used to examine these outcomes and costs. Almost one-fourth (24.3 percent) of the infants in our matched sample of 12,020 deliveries was premature or had other problems at birth. Costs for these infants accounted for 82 percent of the total $56 million spent on sample infants. The incremental cost of infants with poor birth outcomes versus those with normal, full-terms was approximately $14,600. We found that these relative costs had increased over time due perhaps to the increased technology and intensity of services used to save infant lives. We also found that factors other than maternal and infant complications affected cost variations. For example, employers located in the Northeast, hiring older mothers, and in unionized sectors have higher prenatal, delivery, and infant costs.  相似文献   

11.

Objective

To evaluate whether the expansion of Federally Qualified Health Centers (FQHCs) improved late prenatal care initiation, low birth weight, and preterm birth among Medicaid-covered or uninsured individuals.

Data Sources and Study Setting

We identified all FQHCs in California using the Health Resources and Services Administration's Uniform Data System from 2000 to 2019. We used data from the U.S. Census American Community Survey to describe area characteristics. We measured outcomes in California birth certificate data from 2007 to 2019.

Study Design

We compared areas that received their first FQHC between 2011 and 2016 to areas that received it later or that had never had an FQHC. Specifically, we used a synthetic control with a staggered adoption approach to calculate non-parametric estimates of the average treatment effects on the treated areas. The key outcome variables were the rate of Medicaid or uninsured births with late prenatal care initiation (>3 months' gestation), with low birth weight (<2500 grams), or with preterm birth (<37 weeks' gestation).

Data Collection/Extraction Methods

The analysis was limited to births covered by Medicaid or that were uninsured, as indicated on the birth certificate.

Principal Findings

The 55 areas in California that received their first FQHC in 2011–2016 were more populous; their residents were more likely to be covered by Medicaid, to be low-income, or to be Hispanic than residents of the 48 areas that did not have an FQHC by the end of the study period. We found no statistically significant impact of the first FQHC on rates of late prenatal care initiation (ATT: −10.4 [95% CI −38.1, 15.0]), low birth weight (ATT: 0.2 [95% CI −7.1, 5.4]), or preterm birth (ATT: −7.0 [95% CI −15.5, 2.3]).

Conclusions

Our results from California suggest that access to primary and prenatal care may not be enough to improve these outcomes. Future work should evaluate the impact of ongoing initiatives to increase access to maternal health care at FQHCs through targeted workforce investments.  相似文献   

12.
Objectives Pennsylvania’s maternal mortality, infant mortality, and preterm birth rates rank 24th, 35th, and 25th in the country, and are higher among racial and ethnic minorities. Provision of prenatal and postpartum care represents one way to improve these outcomes. We assessed the extent of disparities in the provision and timeliness of prenatal and postpartum care for women enrolled in Pennsylvania Medicaid. Methods We performed a cross-sectional evaluation of representative samples of women who delivered live births from November 2011 to 2015. Our outcomes were three binary effectiveness-of-care measures: prenatal care timeliness, frequency of prenatal care, and postpartum care timeliness. Pennsylvania’s Managed Care Organizations (MCOs) were required to submit these outcomes to the state after reviewing administrative and medical records through a standardized, validated sampling process. We assessed for differences in outcomes by race, ethnicity, region, year, and MCO using logistic regression. Results We analyzed data for 12,228 women who were 49% White, 31% Black/African American, 4% Asian, and 15% Hispanic/Latina. Compared to Black/African American women, white and Asian women had higher odds of prenatal and postpartum care. Hispanic/Latina women had higher frequency of prenatal care than non-Hispanic women. Pennsylvania’s Southeast had lower prenatal care and Northwest had lower postpartum care than other regions. Prenatal care significantly decreased in 2014 and increased in 2015. We observed differences between MCOs, and as MCO performance diminished, racial disparities within each plan widened. We explored hypotheses for observed disparities in secondary analyses. Conclusions for Practice Our data demonstrate that interventions should address disparities by race, region, and MCO in equity-promoting measures.  相似文献   

13.
14.
OBJECTIVES. This study assessed the impact of mother's race, insurance status, and use of prenatal care on very low birthweight infant delivery in or transfer to hospitals with neonatal intensive care units (ICUs). METHODS. Multivariate analysis of Alabama vital statistics records between 1988 and 1990 for infants weighing 500 to 1499 g was conducted, comparing hospital of birth and maternal and infant transfer status, and controlling for infant birthweight and for maternal pregnancy history and demographic characteristics. RESULTS. With other factors adjusted for, non-White mothers with early prenatal care were more likely than White mothers to deliver their very low birthweight infants in hospitals with neonatal ICUs without transfer. Among the mothers who presented first at hospitals without such facilities, those who had late prenatal care were less likely than those with early care to be transferred to hospitals with neonatal ICUs before delivery. Medicaid coverage increased the likelihood of antenatal transfer for White women. Likelihood of infant transfer was not associated with these maternal characteristics. CONCLUSIONS. Maternal race, prenatal care use, and insurance status may influence the likelihood that very low birthweight infants will have access to neonatal intensive care. Interventions to improve perinatal regionalization should address individual and system barriers to the timely referral of high-risk mothers.  相似文献   

15.
The healthy migrant theory posits that women who migrate before pregnancy are intrinsically healthier and therefore have better birth outcomes than those who don’t move. Objective. To determine whether migration to the suburbs is associated with lower rates of preterm (<37 weeks) birth among Chicago-born White and African–American mothers. We performed stratified and multilevel logistic regression analyses on an Illinois transgenerational dataset of non-Latino White and African–American infants (1989–1991) and their mothers (1956–1976) with appended US census income information. Forty percent of Chicago-born White mothers (N = 45,135) migrated to Suburban Cook County and 30 % migrated to the more geographically distant collar counties. In contrast, 10 % of Chicago-born African–American mothers (N = 41,221) migrated to Suburban Cook and only two percent migrated to the collar counties. Chicago-born White and African–American migrant mothers to Suburban Cook County had lower preterm birth rates than their non-migrant counterparts; RR = 0.8 (0.8–0.9) and 0.8 (0.7–0.8), respectively. When neighborhood income was singularly taken into account, the protective association of suburban migration and preterm birth disappeared among Chicago-born Whites. In race-specific multilevel multivariate regression models which included neighborhood income, the adjusted odds ratio of preterm birth, low birth weight, and small for gestational-age for Chicago-born White and African–American migrant (compared to non-migrant) mothers approximated unity. Neighborhood income underlies the protective association of suburban migration and birth outcome among Chicago-born White and African–American mothers. These findings do not support the healthy migrant hypothesis of reproductive outcome.  相似文献   

16.
The Special Supplemental Food Program for Women, Infants, and Children (WIC) provides supplemental food, nutrition and health education, and social services referral to pregnant, breastfeeding, and post-partum women, and their infants and young children who are both low-income and at nutritional risk. A number of statistically controlled evaluations that compared prenatal women who received WIC services with demographically similar women who did not receive WIC services have found WIC enrollment associated with decreased levels of low birth weight among enrolled women''s infants. Several also have found lower overall maternal and infant hospital costs among women who had received prenatal WIC services compared with similar women who did not receive prenatal WIC services. A meta-analysis of the studies shows that providing WIC benefits to pregnant women is estimated to reduce low birth weight rates 25 percent and reduce very low birth weight births by 44 percent. Using these data to estimate costs, prenatal WIC enrollment is estimated to have reduced first year medical costs for U.S. infants by $1.19 billion in 1992. Savings from a reduction in estimated Medicaid expenditures in the first year post-partum more than offset the cost of the Federal prenatal WIC Program. Even using more conservative assumptions, providing prenatal WIC benefits was cost-beneficial. Because of the estimated program cost-savings, the U.S. General Accounting Office has recommended that all pregnant women at or below 185 percent of Federal poverty level be eligible for the program.  相似文献   

17.
OBJECTIVES: Different sources of prenatal care data were used to examine the association between birth outcomes of HIV-infected women and the Adequacy of Prenatal Care Utilization (APNCU) index. METHODS: Adjusted odds ratios of birth outcomes for 1858 HIV-positive mothers were calculated for APNCU indexes on the basis of birth certificate data or 3 types of physician visits on Medicaid claims. RESULTS: Claims- and birth certificate-based APNCU indexes agreed poorly (kappa < 0.3). Only the broadest claims-based APNCU index had lower adjusted odds ratios for low birthweight (0.64; 95% confidence interval [CI] = 0.49, 0.84) and preterm birth (0.70; 95% CI = 0.54, 0.91). The birth certificate-based index had a reduced adjusted odds ratio (0.73; 95% CI = 0.56, 0.95) only for preterm birth. CONCLUSIONS: The association of birth outcomes and adequacy of prenatal care in this HIV-infected cohort differed significantly depending on the source of prenatal care data.  相似文献   

18.
Objectives To describe hospital utilization and costs associated with preterm or low birth weight births (preterm/LBW) by payer prior to implementation of the Affordable Care Act and to identify areas for improvement in the quality of care received among preterm/LBW infants. Methods Hospital utilization—defined as mean length of stay (LOS, days), secondary diagnoses for birth hospitalizations, primary diagnoses for rehospitalizations, and transfer status—and costs were described among preterm/LBW infants using the 2009 Nationwide Inpatient Sample. Results Approximately 9.1 % of included hospitalizations (n = 4,167,900) were births among preterm/LBW infants; however, these birth hospitalizations accounted for 43.4 % of total costs. Rehospitalizations of all infants occurred at a rate of 5.9 % overall, but accounted for 22.6 % of total costs. This pattern was observed across all payer types. The prevalence of rehospitalizations was nearly twice as high among preterm/LBW infants covered by Medicaid (7.6 %) compared to commercially-insured infants (4.3 %). Neonatal transfers were more common among preterm/LBW infants whose deliveries and hospitalizations were covered by Medicaid (7.3 %) versus commercial insurance (6.5 %). Uninsured/self-pay preterm and LBW infants died in-hospital during the first year of life at a rate of 91 per 1000 discharges—nearly three times higher than preterm and LBW infants covered by either Medicaid (37 per 1000) or commercial insurance (32 per 1000). Conclusions When comparing preterm/LBW infants whose births were covered by Medicaid and commercial insurance, there were few differences in length of hospital stays and costs. However, opportunities for improvement within Medicaid and CHIP exist with regard to reducing rehospitalizations and neonatal transfers.  相似文献   

19.
OBJECTIVES: This project investigated whether augmented prenatal care for high-risk African American women would improve pregnancy outcomes and patients' knowledge of risks, satisfaction with care, and behavior. METHODS: The women enrolled were African American, were eligible for Medicaid, had scored 10 or higher on a risk assessment scale, were 16 years or older, and had no major medical complications. They were randomly assigned to augmented care (n = 318) or usual care (n = 301). Augmented care included educationally oriented peer groups, additional appointments, extended time with clinicians, and other supports. RESULTS: Women in augmented care rated their care as more helpful, knew more about their risk conditions, and spent more time with their nurse-providers than did women in usual care. More smokers in augmented care quit smoking. Pregnancy outcomes did not differ significantly between the groups; however, among patients in augmented care, rates of preterm births were lower and cesarean deliveries and stays in neonatal intensive care units occurred in smaller proportions. Both groups had lower-than-predicted rates of low birthweight. CONCLUSIONS: High-quality prenatal care, emphasizing education, health promotion, and social support, significantly increased women's satisfaction, knowledge of risk conditions, and perceived mastery in their lives, but it did not reduce low birthweight.  相似文献   

20.
Preterm birth is one of the main causes for infant morbidity and mortality. Apart from negative health outcomes, preterm birth also produces significant health care expenditures. This study evaluates the costs associated with preterm birth in different health sectors during the first 3 years of infants’ lives. In a retrospective observational study based on claims data from a German statutory health insurance company, average costs for medication, hospital treatment, ambulatory treatment, and non-medical remedies during the first 3 years after birth were analyzed for early preterm, late preterm, and full-term births. Costs associated with preterm births were generally higher than for full-term births, with the highest costs for the hospital treatment of early preterm births. Cost differences tended to decrease in the second and third year after birth except for ambulatory treatment costs, which decreased for late preterm and full-term births but not for early preterm births. The study shows that preterm birth is associated with increased health care costs, particularly during the first year after birth, indicating that the implementation of adequate programs and policies for preventing preterm birth is not only desirable from a medical but also from a health economic perspective.  相似文献   

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