Reducing the Burden of Anemia and Neural Tube Defects in Low- and Middle-Income Countries: An Analysis to Identify Countries with an Immediate Potential to Benefit from Large-Scale Mandatory Fortification of Wheat Flour and Rice

Using a predetermined set of criteria, including burden of anemia and neural tube defects (NTDs) and an enabling environment for large-scale fortification, this paper identifies 18 low- and middle-income countries with the highest and most immediate potential for large-scale wheat flour and/or rice fortification in terms of health impact and economic benefit. Adequately fortified staples, delivered at estimated coverage rates in these countries, have the potential to avert 72.1 million cases of anemia among non-pregnant women of reproductive age; 51,636 live births associated with folic acid-preventable NTDs (i.e., spina bifida, anencephaly); and 46,378 child deaths associated with NTDs annually. This equates to a 34% reduction in the number of cases of anemia and 38% reduction in the number of NTDs in the 18 countries identified. An estimated 5.4 million disability-adjusted life years (DALYs) could be averted annually, and an economic value of 31.8 billion United States dollars (USD) generated from 1 year of fortification at scale in women and children beneficiaries. This paper presents a missed opportunity and warrants an urgent call to action for the countries identified to potentially avert a significant number of preventable birth defects, anemia, and under-five child mortality and move closer to achieving health equity by 2030 for the Sustainable Development Goals.

Primary prevention as an essential factor ensuring sustainability of health systems: the example of congenital anomalies

Protection of early development contributes to health of next generations. Congenital anomalies (and other adverse reproductive outcomes) are an important public health issue and early indicator of public health risks, as early development is influenced by many risk factors (e.g., nutrition, lifestyles, pollution, infections, medications, etc). Effective primary prevention requires an integrated "One Health" approach, linking knowledge and action. This requires surveillance of health events and potential health-damaging factors, science-based risk analysis, citizens' empowerment and education of health professionals. From the policy standpoint, joint budgeting mechanisms are needed to sustain with equity intersectoral actions (involving policy domains of health, social affairs, education, agriculture and environment). States should devote resources to strengthen registries and systematic data collection for surveillance of congenital anomalies, to better inform national prevention strategies. Investing in primary prevention based on scientific evidence is essential to support sustainable and resilient health systems and sustainable development of the society.

Inpatient Hospitalization Costs Associated with Birth Defects Among Persons of All Ages - United States, 2013

In the United States, major structural or genetic birth defects affect approximately 3% of live births (1) and are responsible for 20% of infant deaths (2). Birth defects can affect persons across their lifespan and are the cause of significant lifelong disabilities. CDC used the Healthcare Cost and Utilization Project (HCUP) 2013 National Inpatient Sample (NIS), a 20% stratified sample of discharges from nonfederal community hospitals, to estimate the annual cost of birth defect-associated hospitalizations in the United States, both for persons of all ages and by age group. Birth defect-associated hospitalizations had disproportionately high costs, accounting for 3.0% of all hospitalizations and 5.2% of total hospital costs. The estimated annual cost of birth defect-associated hospitalizations in the United States in 2013 was $22.9 billion. Estimates of the cost of birth defect-associated hospitalizations offer important information about the impact of birth defects among persons of all ages on the overall health care system and can be used to prioritize prevention, early detection, and care.

Trends in the incidence of diabetes, its clinical sequelae, and associated costs in pregnancy

BACKGROUND

Increasing diabetes prevalence affects a substantial number of pregnant women in the United States. Our aims were to evaluate health outcomes, medical costs, risks and types of complications associated with diabetes in pregnancy for mothers and newborns.

METHODS

In this retrospective claims analysis, patients were identified from the Truven Health MarketScan(®) database (2004-2011 inclusive). Participants were aged 18-45 years, with ascertainable diabetes status [Yes/No], date of birth event >2005 and continuous health plan enrolment ≥21 months before and 3 months after the birth.

RESULTS

In total, 839 792 pregnancies were identified, and 66 041 (7.86%) were associated with diabetes mellitus [type 1 (T1DM), 0.13%; type 2 (T2DM), 1.21%; gestational (GDM), 6.29%; and GDM progressing to T2DM (patients without prior diabetes who had a T2DM diagnosis after the birth event), 0.23%]. Relative risk (RR) of stillbirth (2.51), miscarriage (1.28) and Caesarean section (C-section) (1.77) was significantly greater with T2DM versus non-diabetes. Risk of C-section was also significantly greater for other diabetes types [RR 1.92 (T1DM); 1.37 (GDM); 1.63 (GDM progressing to T2DM)]. Risk of overall major congenital (RR ≥ 1.17), major congenital circulatory (RR ≥ 1.19) or major congenital heart (RR ≥ 1.18) complications was greater in newborns of mothers with diabetes versus without. Mothers with T2DM had significantly higher risk (RR ≥ 1.36) of anaemia, depression, hypertension, infection, migraine, or cardiac, obstetrical or respiratory complications than non-diabetes patients. Mean medical costs were higher with all diabetes types, particularly T1DM ($27 531), than non-diabetes ($14 355).

CONCLUSIONS

Complications and costs of healthcare were greater with diabetes, highlighting the need to optimize diabetes management in pregnancy.

Cost effectiveness of teratology counseling - the Motherisk experience

BACKGROUND

While the benefits of evidence-based counseling to large numbers of women and physicians are intuitively evident, there is an urgent need to document that teratology counseling, in addition to improving the quality of life of women and families, also leads to cost saving. The objective of the present study was to calculate the cost effectiveness of the Motherisk Program, a large teratology information and counseling service at The Hospital for Sick Children and the University of Toronto.

METHODS

We analyzed data from the Motherisk Program on its 2012 activities in two domains: 1) Calculation of cost-saving in preventing unjustified pregnancy terminations; and 2) prevention of major birth defects. Cost of pregnancy termination and lifelong cost of specific birth defects were identified from primary literature and prorated for cost of living for the year 2013.

RESULTS

Prevention of 255 pregnancy terminations per year led to cost savings of $516,630. The total estimated number of major malformations prevented by Motherisk counseling in 2012 was 8.41 cases at a total estimated cost of $9,032,492.

CONCLUSIONS

With an estimated minimum annual prevention of 8 major malformations, and numerous unnecessary terminations of otherwise- wanted pregnancies, a cost saving of $10 million can be calculated. In 2013 the operating budget of Motherisk counseling totaled $640,000. Even based on the narrow range of activities for which we calculated cost, this service is highly cost- effective. Because most teratology counseling services are operating in a very similar method to Motherisk, it is fair to assume that these results, although dependent on the size of the service, are generalizable to other countries.

Which newborn infants are too expensive to treat? Camosy and rationing in intensive care

Are there some newborn infants whose short- and long-term care costs are so great that treatment should not be provided and they should be allowed to die? Public discourse and academic debate about the ethics of newborn intensive care has often shied away from this question. There has been enough ink spilt over whether or when for the infant's sake it might be better not to provide life-saving treatment. The further question of not saving infants because of inadequate resources has seemed too difficult, too controversial, or perhaps too outrageous to even consider. However, Roman Catholic ethicist Charles Camosy has recently challenged this, arguing that costs should be a primary consideration in decision-making in neonatal intensive care. In the first part of this paper I will outline and critique Camosy's central argument, which he calls the 'social quality of life (sQOL)' model. Although there are some conceptual problems with the way the argument is presented, even those who do not share Camosy's Catholic background have good reason to accept his key point that resources should be considered in intensive care treatment decisions for all patients. In the second part of the paper, I explore the ways in which we might identify which infants are too expensive to treat. I argue that both traditional personal 'quality of life' and Camosy's 'sQOL' should factor into these decisions, and I outline two practical proposals.

Access, quality and costs of prenatal diagnosis

The background risk of birth defects ranges from 2 to 5%. These birth defects are responsible for 30% of all admissions to pediatric hospitals and are responsible for a large proportion of neonatal and infant deaths. Medicine and Genetics have taken giant steps in their ability to detect and treat genetic disorders in utero. Screening tests for prenatal diagnosis should be offered to all pregnant women to assess their risk of having a baby with a birth defect or genetic disorder. Psychosocial and financial factors, inadequate insurance coverage, and the inability to pay for health care services are some of the known barriers to healthcare. These barriers are particularly magnified when there is a language barrier. From an economical standpoint it has been demonstrated that prenatal diagnosis has the potential of saving millions of dollars to our healthcare system. But when patients do not have the resources to access prenatal care and prenatal diagnosis cost shifting occurs, escalating healthcare costs. Our current healthcare system promotes inequalities in its delivery. With the existing barriers to access, quality, and costs of prenatal diagnosis we are confronted with an inefficient and flawed system.

The business case for preconception care: methods and issues

Only a limited number of economic evaluations have addressed the costs and benefits of preconception care. In order to persuade health care providers, payers, or purchasers to become actively involved in promoting preconception care, it is important to demonstrate the value of doing so through development of a “business case”. Perceived benefits in terms of organizational reputation and market share can be influential in forming a business case. In addition, it is standard to include an economic analysis of financial costs and benefits from the perspective of the provider practice, payer, or purchaser in a business case. The methods, data needs, and other issues involved with preparing an economic analysis of the likely financial return on investment in preconception care are presented here. This is accompanied by a review or case study of economic evaluations of preconception care for women with recognized diabetes. Although the data are not sufficient to draw firm conclusions, there are indications that such care may yield positive financial benefits to health care organizations through reduction in maternal and infant hospitalizations. More work is needed to establish how costs and economic benefits are distributed among different types of organizations. Also, the optimum methods of delivering preconception care for women with diabetes need to be evaluated. Similar assessments should also be conducted for other forms of preconception care, including comprehensive care.

Centers for Disease Control and Prevention (CDC). Hospital stays, hospital charges, and in-hospital deaths among infants with selected birth defects--United States, 2003

Birth defects (BDs) are conditions that 1) result from a malformation, deformation, or disruption in one or more parts of the body; 2) are present at birth; and 3) have a serious, adverse effect on health, development, or functional ability. BDs are leading causes of pediatric hospitalizations, medical expenditures, and infant mortality. To estimate national hospital charges and rates of in-hospital deaths for a greater number of specific BDs than estimated in previous reports, investigators at the University of Arkansas for Medical Sciences and CDC used the Healthcare Cost and Utilization Project 2003 Kids' Inpatient Database (KID), developed and distributed by the Agency for Healthcare Research and Quality. KID is a 10% sample of hospital discharges after uncomplicated births and an 80% sample of all other pediatric discharges from 36 participating states. Data are weighted to represent all pediatric hospitalizations in the United States. The investigators analyzed hospital stays during 2003 for newborn infants with any of 35 BDs. This report describes the results of that analysis, which indicated substantial variation among BDs regarding average length of stay, average hospital charge, and the incidence of in-hospital deaths. Average length of stay was greatest for infants with surgically repaired gastroschisis or omphalocele. Average hospital charges were highest for infants with hypoplastic left heart syndrome and common truncus arteriosus. Although anencephaly, trisomy 13, and trisomy 18 were associated with the highest rates of in-hospital death, the largest total numbers of deaths associated with neonatal hospitalizations occurred in infants with diaphragmatic hernia and renal agenesis. Further studies are needed to distinguish outcomes for infants with isolated and multiple defects and to assess longer-term outcomes.

[Study on the socio-economic risk factors on birth defects in Lvliang district of Shanxi province]

OBJECTIVE

To study the risk factors in high prevalence district of birth defects (BD) to provide evidence for intervention development.

METHODS

Quantitative analysis had been carried out based on the investigation at three counties in Shanxi province. 491 useable questionnaires had been collected with a response rate as 94.6%. Binary logistic regression was performed to analyze the risk factors of BD.

RESULTS

Data from logistic regression analyses revealed that factors as: the status of family income, knowledge on healthy birth and rearing, behavior and illness during pregnancy were influencing the occurrence of BD, with OR values as 0.535, 3.265, 0.403 and 1.379 respectively. Better family income and knowledge on BD were negatively (P values are 0.000 and 0.001 respectively), while illness during pregnancy and alcohol intake of the husbands were positively correlated (P values are 0.005 and 0.012 respectively) to the occurrence of BD.

CONCLUSION

Measures as accelerating the development of local economy, providing education on BD knowledge to the couples, changing negative life style and improving the health status would reduce the risk of BD. Preconceptional-periconceptional care seemed to be the new idea for healthy pregnancy and healthy baby.

Outcome at 2 years for very low birthweight infants in a geographical population: risk factors, cost, and impact of congenital anomalies

AIM

To determine the type and rate of disability at 2 years of age in infants born in the geographically defined population of East Anglia with a birthweight less than 1500 g and to assess the risk factors for disability.

STUDY DESIGN

A prospective cohort analysis from all eight neonatal units in East Anglia from 1993-1997 using a single database.

METHODS

Local paediatricians assessed children at 2 years using the Health Status Questionnaire and data collection was centrally coordinated.

RESULTS

Outcomes for 947 children, 99% of survivors, were available, 74 (7.8%) had severe disability and this was significantly associated with gestational age (p<0.0005), birthweight (p<0.0005) and sex (p=0.046). Major congenital abnormality contributed 27% of all severe disability. The overall cerebral palsy rate was 6.2%, nine children were blind and five had sensorineural hearing loss requiring aids. These children had a high level of use of community services with 19% of the cohort being referred to one or more community service. ELBW infants or those born <30 weeks gestation were 1.5 times and twice as likely to have moderate or severe disability and 2.3 and 5.4 times as likely to have cerebral palsy as those weighing 1000 to 1500 g or >30 weeks gestation. Boys were at higher risk of adverse outcome.

CONCLUSIONS

The study was able to define the increased risk associated with being born at lower gestational age or lower birthweight and demonstrates successful ascertainment of outcomes for large local populations at a reasonable cost.

Evaluation of the Texas Birth Defects Registry: An active surveillance system

BACKGROUND

Evaluations of surveillance systems are necessary to determine if the goals of the system are being met, how efficiently the surveillance is being implemented, and if resources are being used appropriately. An evaluation of the Texas Birth Defects Registry was conducted to assess the overall quality of data collection and to examine variations across regions of the state.

METHODS

The registry was evaluated by using published guidelines for evaluating public health surveillance systems; the evaluation included staff interviews, process observation, and secondary data analysis.

RESULTS

The registry monitors >370,000 births/year through active surveillance, with considerable disparities in workload across regions of the state. Because of the geographic size and substantial population of Texas, data collection is complex. However, the estimated sensitivity of the system appears sufficient, and rates for selected defects are highly comparable with other U.S. active birth-defect surveillance systems. Registry staff continually monitor the quality of data collection and provide additional training. Amid unstable funding, the registry staff have demonstrated optimal foresight and flexibility to adapt and continue quality data collection. Timeliness needs to be improved and more consistent quality assurance is needed across regions of the state. Retaining staff and increasing visibility are essential to providing more stability.

CONCLUSIONS

Active surveillance for birth defects is labor-intensive but provides invaluable data for its stakeholders. The Texas Birth Defects Registry has proven to be a quality surveillance system and a beneficial resource for Texas.

[The cost of newborns transportation to the referral centers in comparison to the cost of the transport in-utero]

OBJECTIVES

The purpose of the study was to estimate the costs of newborns transportation to the referral center, due to congenital malformation and to compare theses costs with transfer in utero, after detection of anomalies by screening ultrasound.

MATERIALS AND METHODS

Analysis of newborns data from Pediatric Cardiology Clinic and Intensive Therapy Clinic from the Polish Mother's Memorial Hospital (2000-2002). Ambulance transportation, helicopter transportation and air-plane transportation were calculated and compared with the costs of three ultrasound seans per pregnancy.

RESULTS

Transfer in utero was 5 x cheaper than newborns transportation by ambulance, 28 x cheaper than by helicopter and 42 x cheaper than by air-plane.

CONCLUSIONS

Assuming that only every second congenital malformation would be detected prenatally by ultrasound, Polish Health System could safe circa 13 min złotych.

[Terminology: Why were small congenital anomalies called degenerative stigmas or small signs of birth defects?]

The problem of small developmental anomalies has once again become actual not only for geneticists but also for practical public health. Before using complicated and expensive laboratory methods of investigation the surgeon, orthopedist, traumatologist and neurologist should carefully and thoughtfully examine the external signs of pathology of the patient. Having detected "small" anomalies the doctor may start looking for a "large" pathology--a serious disease of internal organs, locomotor system and nervous system. It seems to be of importance under conditions of insurance medicine when many laboratory investigations are expensive or not available.

Adult survivors of pediatric illness: the impact on pediatric hospitals

CONTEXT

Patients now live well into adulthood surviving diseases with pediatric onset. The size and financial impact of this growing population is unknown.

OBJECTIVE

To describe the demographics of adult inpatients in pediatric facilities and to assess the financial impact of providing care for these patients on freestanding children's hospitals.

DESIGN AND DATA SOURCES

An observational study using the Pediatric Health Information System, a proprietary database available to Child Health Corporation of America member hospitals, covering years 1994-1999. These data reflect inpatient services and exclude outpatient encounters and adult patients transitioned to adult providers. National estimates of the number of adult survivors of pediatric illness and the financial impact of care were calculated. Hospitals with >100 discharge events for patients > or =age 21 in 1999, and having both clinical and financial data in the dataset, assured an adequate sample size to discern resource utilization. Both 18 and 21 were used as lower limits of adult age to reflect common definitions of legal majority (age 18) and common pediatric practice (age 21). We truncated the data at age 64 to exclude patients eligible for Medicare.

RESULTS

Ten hospitals representing all geographic regions of the United States were used for an in-depth analysis of financial impact during 1999. Six of 10 had data for 1994-1999 to describe trends over time. The number of patients admitted over the 6-year period increased, as did average and total adjusted charges. In 1999, 3863 patients 18 to 64 years old incurred 5051 discharge episodes and total charges of $134.5 million. Of these, about half (1785) were > or =21 with charges of $66 million. Of the hospitals' total discharges and financial charges, on average 2.1% and 3.1%, respectively, were from the inpatient care of patients 21 to 64 years old. Forty percent of patients receive public aid. Extrapolating from census data, up to 15 000 patients > or =21 years annually may seek inpatient care in part at children's hospitals, with charges exceeding $500 million. The 3 most common diagnostic groups to be admitted were those with cystic fibrosis, mental retardation or cerebral palsy, and congenital heart disease.

CONCLUSIONS

We describe a subset of adults who have survived diseases of pediatric onset. We focused on the portion of that population that obtains at least some inpatient care at a children's hospital. The data reported here can be used to set a lower boundary for the size of this population, and thereby provide valuable data for health planners as well as clinicians. If one includes estimates of expenses across the continuum of care, the financial impact of this growing population is substantial. Public policy discussions should include the medical, psychological, social, and financial needs of this population.

Antenatal ultrasound screening for fetal abnormalities: a systematic review of studies of cost and cost effectiveness

OBJECTIVE

To review systematically and critically evidence to derive estimates of costs and cost effectiveness of routine ultrasound screening for fetal abnormalities.

DESIGN

A systematic review of the literature using explicit criteria for inclusion of primary research studies, a stated electronic strategy to identify relevant material, and an explanation of why apparently relevant studies have not been included.

SETTING

All countries of origin were included. The results of this review are important to obstetricians and to health service managers in the allocation of resources, and others who are considering conducting further research in this area.

MAIN OUTCOME MEASURE

Formal economic evaluations and cost studies of routine ultrasound screening. Costs of routine anomaly scans and costs of other procedures carried out as part of antenatal screening by ultrasound.

RESULTS

One hundred and ninety-nine studies were identified in total, 24 reaching the final stage of the review. Nine studies were formal economic evaluations and 15 reported costs studies or clinical effectiveness studies with some assessment of cost. The studies were carried out mainly in Europe and in the United States. After quality criteria were applied, data were extracted from six of the economic evaluations and six of the costs studies. One economic evaluation conducted alongside a randomised trial concluded that screening for fetal abnormalities by ultrasound in the second trimester was cost effective, compared with routine antenatal care. The costs of routine scans ranged from Pound Sterling 18 to Pound Sterling 204 and for non-routine ranged from Pound Sterling 32 to Pound Sterling 113.

CONCLUSIONS

There is a lack of good quality primary studies of the costs of ultrasound screening in pregnancy. Typically, economic evaluations of ultrasound screening have been based on poor quality evidence of clinical effectiveness. There is a need for more published data on the costs and cost effectiveness of routine ultrasound screening for fetal anomalies, and of the longer term consequences of screening for anomalies.

Methodological limitations of economic evaluations of antenatal screening

A review of recent economic studies of antenatal screening reveals widespread violation of accepted economic evaluation methodology. In particular, the costs and benefits of antenatal screening are often misclassified and conflated, and the non-resource effects of averted costs are often excluded from the evaluation process. The result is a widespread violation of the explicit and systematic approaches taken by economic analysts more generally, and conclusions that may be described as misleading. This letter calls for economic analysts to be consistent in their application of economic evaluation methodology to antenatal screening programmes.

Mortality from congenital abnormality in Malaysia 1991-1997: the effect of economic development on death due to congenital heart disease

An analysis was done of available data from the Department of Statistics Malaysia, on the type of congenital abnormality contributing to death, to determine whether progress in health care over recent years was associated with any decline in mortality from congenital abnormality. A significant decline in death due to congenital abnormality was observed between 1991 and 1996. This was attributable to a decline in deaths due to congenital heart disease occurring because of improvements in cardiac surgical services for infants. In 1997 death due to congenital heart disease increased significantly. This could be attributed to improvements in the diagnosis of congenital heart disease in the neonate.

[Diagnosis-related groups and neonatal surgical patients]

Diagnose Related Groups (DRG) are defined on the basis of the principal diagnosis, secondary diagnoses, procedures, age, sex and discharge status, and were developed to improve hospital productivity and efficacy. Existing code systems do not cover all medical specialties equally well; examples are neonatal medicine, cancer treatment and rehabilitation. We have developed a prospective method to measure actual costs related to patients individually. The major element in this method is based upon the hospital stay being divided into types of treatment with different resource requirements: heavy intensive care, light intensive care, intermediate care and ordinary care. In addition, costs related to surgery and other procedures are measured. Our method was used to calculate costs related to neonatal surgery due to various inborn diseases in the gastrointestinal tract and the urinary system. All patients needed immediate care and competent medical intervention. Mean costs for the group was NOK 291,181 while total reimbursement to the hospital was NOK 100,390, resulting in a net negative balance of NOK 190,970. Neonatal surgery does not seem to be adequately covered by the DRG system. This complex patient group provides a comprehensive test of the prospective method, and after evaluation we feel that it can be used in most other patient groups to verify actual cost.

Infant mortality and congenital anomalies from 1950 to 1994: an international perspective

STUDY OBJECTIVE

To provide an international perspective on the impact of congenital anomalies on infant mortality from 1950 to 1994.

DESIGN

Population-based study based on data obtained from vital statistics reported to the World Health Organisation.

SETTINGS

36 countries from Europe, the Middle East, the Americas, Asia, and the South Pacific.

RESULTS

On average, infant mortality declined 68.8 per cent from 1950 to 1994. In the countries studied, infant mortality attributable to congenital anomalies decreased by 33.4 per cent, although it recently increased in some countries in Central and Latin America and in Eastern Europe. Anomalies of the heart and of the central nervous system accounted for 48.9 per cent of infant deaths attributable to congenital anomalies. During 1990-1994, infant mortality attributable to congenital anomalies was inversely correlated to the per capita gross domestic product in the countries studied. At the same time, the proportion of infant deaths attributable to congenital malformations was directly correlated with the per capita gross domestic product.

CONCLUSIONS

Congenital malformations account for an increasing proportion of infant deaths in both developed and developing countries. Infant mortality attributable to congenital anomalies is higher in poorer countries although as a proportion of infant deaths it is greater in wealthier countries. Conditions such as spina bifida, whose occurrence can be reduced through preventive strategies, still cause many infant deaths. The apparent increase of infant mortality because of congenital anomalies in some countries should be investigated to confirm the finding, find the causes, and provide prevention opportunities.

Fiscal impact of a potential legislative ban on second trimester elective terminations for prenatally diagnosed abnormalities

This study was designed to determine the fiscal impact of a theoretical legislative ban on elective terminations for prenatally diagnosed abnormalities at Hutzel Hospital/Wayne State University. A fiscal comparison was completed for patients who had second trimester elective terminations for prenatally diagnosed abnormalities versus not allowing the procedure. An eight-year database of genetics cases and hospital and physician cost estimates for performing elective terminations for prenatally diagnosed abnormalities, and published reports of the average lifetime costs per selected birth defects, were used to calculate the net cost. The estimated lifetime cost for an average cohort year of a legislative ban on elective terminations for prenatally diagnosed abnormalities was found to be at least $8.5 million for patients treated at Hutzel Hospital. Extrapolated, a similar ban on second trimester elective terminations would have a net cost of $74 million in Michigan and $2 billion annually in the United States.

Cost-effectiveness of neonatal surgery: a review

BACKGROUND/PURPOSE

Technological developments have revolutionized both diagnosis and treatment in neonatal surgery. However, it has been increasingly recognized that financial resources might become insufficient to provide all the medical care that is technically feasible or that patients and families might desire. The purpose of this study is to apply the theory of health economics to neonatal surgery and to explore the extent and the kind of economic evaluation done in neonatal surgery.

METHODS

To explore the work done so far, the authors undertook a literature search aimed at costs and effects of surgical interventions in newborns with Ravitch' surgical index diagnoses of congenital anomalies. Common keywords in cost-effectiveness analysis were used to search Medline.

RESULTS

Evidence about the cost effectiveness of neonatal surgery is largely lacking. This is probably because of difficulties in long-term tracking of the patients and to the problem that most generic quality-of-life measures are not applicable in children yet.

CONCLUSIONS

Further cost-effectiveness research in neonatal surgery is warranted to settle priority discussions in health care when neonatal surgery is part of such discussions. Methodology for generic quality-of-life measurement in children is badly needed.

Outcomes and resource utilization for newborns with major congenital malformations: the initial NICU admission

HYPOTHESIS

Newborns with major congenital malformations (MCM) have contributed to a significant proportion of resource utilization in a regional referral neonatal intensive care unit (NICU).

SETTING

The Children's Hospital Medical Center NICU, Cincinnati, OH.

SUBJECTS

Newborns with and without MCM admitted from August 1, 1993 through July 31, 1994. Total patients studied were 572; 147 with and 385 without MCM. No intervention was performed in this observational study.

STATISTICS

Statistics were t test, chi-squared, and rank sum analysis.

RESULTS

MCM accounted for 27.6% of NICU referrals, 32.4% of total NICU days, and 39.6% of NICU costs. Both median cost per patient and length of stay were significantly (p < 0.01) higher for patients with MCM than those without MCM. Surgery was more frequent in MCM than non-MCM cases. Thirty-three percent of the newborns with MCM received ongoing medical support at discharge.

CONCLUSION

Patients with MCM remain as one of the largest and costliest groups hospitalized in a referral NICU.

Prevalence of congenital malformations and genetic diseases in Korea

A nationwide investigation of congenital malformations and genetic diseases in Korea was conducted by analyzing Medical Insurance data for infants aged under 1 year. Medical Insurance data were obtained for 1993 and 1994 and the ICD-9 (International Classification of Diseases, Ninth Revision) code was used to classify the diseases. The coverage rate of medical insurance was approximately 95% of the total population. Anomalies of the cardiovascular, musculoskeletal, and gastrointestinal systems, in descending order of frequency, were more frequent than anomalies in other systems. The average prevalence of cardiovascular anomalies for 1993 and 1994 was 15 per 1000 infants, and ventricular septal defect, with an average prevalence of about 3.50 per 1000 for 1993 and 1994, was the most frequent cardiovascular anomaly in infants. Polydactyly was the most frequent musculoskeletal anomaly, with an average prevalence, for 1993 and 1994, of about 1.20 per 1000 infants. Anencephaly had the highest frequency of nervous system anomalies. Congenital hypertrophic pyloric stenosis was the most common of the gastrointestinal anomalies. The prevalence of the congenital malformations and genetic diseases examined was similar to that reported in other countries. Total medical expenses for the care of patients with each disease entity were also estimated. The highest medical expenses were incurred for ventricular septal defect, congenital coagulation factor VIII disorders, atrial septal defect, tetralogy of Fallot, and spinal anomalies, in descending order of magnitude. This investigation could be helpful in planning social welfare systems, as well as for elucidating the current status of congenital malformations and genetic diseases in Korea, and in other Asian countries.

Medical costs and lost productivity from health conditions at volatile organic compound-contaminated superfund sites

This paper estimates the health costs at Superfund sites for conditions associated with volatile organic compounds (VOCs) in drinking water. Health conditions were identified from published literature and registry information as occurring at excess rates in VOC-exposed populations. These health conditions were: (1) some categories of birth defects, (2) urinary tract disorders, (3) diabetes, (4) eczema and skin conditions, (5) anemia, (6) speech and hearing impairments in children under 10 years of age, and (7) stroke. Excess rates were used to estimate the excess number of cases occurring among the total population living within one-half mile of 258 Superfund sites. These sites had evidence of completed human exposure pathways for VOCs in drinking water. For each type of medical condition, an individual's expected medical costs, long-term care costs, and lost work time due to illness or premature mortality were estimated. Costs were calculated to be approximately $330 million per year, in the absence of any remediation or public health intervention programs. The results indicate the general magnitude of the economic burden associated with a limited number of contaminants at a portion of all Superfund sites, thus suggesting that the burden would be greater than that estimated in this study if all contaminants at all Superfund sites could be taken into account.

Eurofetus: an evaluation of routine ultrasound screening for the detection of fetal defects. Aims and method

The aims of this study are (1) to evaluate the efficiency of ultrasound in detecting CA in low-risk populations of pregnant women by routine screening performed in hospital ultrasound labs (level II); (2) to highlight the areas where improvement could be obtained; (3) to determine efficient timing and number of examinations; (4) to evaluate the psychological returns of detection and nondetection of CA; and (5) to evaluate the cost-effectiveness ratio of antenatal screening of CA. A European collaboration was supposed to help in meeting these objectives because results concerning the analysis of individual CAs or groups of CAs can only be statistically significant when their number is sufficiently large. It was estimated that it was necessary to collect nearly 5,000 CA; this corresponds to about 200,000 pregnant women, the prevalence of malformations at birth being estimated at 2.5%. These conditions yield worthy conclusions, given the following circumstances: a large variety of CA, the extremely low incidence of each CA, the multiple approaches for diagnosis and management, the manifold classes of defects, the differences in gestational age when anomalies are detectable and detected. We study prospectively (1) the reliability of ultrasound in detecting antenatal malformations by recording all CA, ultrasonically suspected and not; (2) the gestational age of anomaly recognition; (3) the response to antenatal diagnosis of CA; (4) the individual outcome of pregnancies; (5) the financial cost of the screening program; and (6) the psychological consequences for the parents.

Ethical dimensions of ultrasound screening for fetal anomalies

The ethical dimensions of the debate on routine ultrasound are analyzed. The central role of the informed consent process, based on a respect for the autonomy of the pregnant woman, is presented. Failure to offer quality ultrasound in clinical settings where it is available restricts access to pregnant women to the diagnosis of fetal anomalies and therefore restricts access to the options of abortion and fetal therapy. We show that beneficence- and justice-based considerations do not supersede respect for autonomy.

Managed care and ultrasound for the diagnosis of fetal anomalies

Managed care organizations and their affiliated group practices approach technology evaluation in a methodical way. This paper reviews the factors used in analysis of ultrasound for the diagnosis of fetal anomalies. It includes one group practice's strategies for ultrasound management while supporting the use of the second trimester fetal survey.

Sensitivity of fetal anomaly detection as a function of time

In this paper, we show that the ratio of the number of fetal anomalies detected by ultrasounds (US) to the total number of cases is not a consistent estimator of the US sensitivity. As Eddy pointed out, when the disease evolves over time, the sensitivity of a test also varies over time according to the development of the disease. To assess correctly the detection capability of a test, it is therefore necessary to estimate a time continuous function (sensitivity function) instead of a single parameter. From a methodological point of view, by considering the "detectability" time of a fetal anomaly as a random variable and parametrizing its distribution function, we estimate the probability that an anomaly is detected conditional upon the precise timing of actually performed US during pregnancy. We fit this model with Eurofetus data (about 7,300 abnormal fetuses), and we compare estimations for different kinds of anomalies (classification based on the system involved and/or severity of the handicap). To allow for heterogeneity of anomalies regarding the detectability time, we generally adopt mixture models. For instance, we select a bi-gamma distribution for major malformations and estimate that 63% of such anomalies are detectable quite early in pregnancy (conditional mean: 15.2 weeks of amenorrhea (WA) +/- 4.2 WA), the others becoming detectable later (30.3 WA +/- 6.4 WA). Such results are then integrated in a cost-effectiveness analysis.

Can decision analysis help us decide whether ultrasound screening for fetal anomalies is worth it?

Decision analysis is a widely used tool to improve clinical decision making when randomized controlled trials are infeasible, underpowered, or lack generalizability. We performed an exploratory decision analysis of routine second trimester ultrasound to detect fetal anomalies, focusing on the assumptions that would have the greatest impact. Six outcome categories were considered: (1) abnormal ultrasound, anomalous child, (2) abnormal ultrasound, elective abortion of anomalous fetus, (3) abnormal ultrasound, healthy child, (4) abnormal ultrasound, elective abortion of healthy fetus, (5) normal ultrasound, healthy child, and (6) normal ultrasound, anomalous child. Live birth and fetal death rates for nine sonographically detectable anomalies were obtained from the California Birth Defects Monitoring Program. The sensitivity and specificity of ultrasound were estimated through meta-analysis of recent series. Plausible ranges for the probabilities of cesarean delivery and elective abortion, by anomaly, were determined through review of the literature. Standard gamble, willingness-to-pay, and human capital estimates of utility were rescaled for comparability. We found that routine ultrasound appears to be the preferred strategy for most women. This choice is sensitive primarily to the specificity of ultrasound and women's willingness-to-pay for the reassurance of a normal ultrasound.

Reduced costs of congenital anomalies from fetal ultrasound: are they sufficient to justify routine screening in the United States?

No comprehensive benefit-to-cost analysis has been performed to date on a policy of routine ultrasound screening for fetal anomalies in the United States. We performed a preliminary benefit-to-cost analysis drawing upon our previous research on the cost or birth defects in the United States and upon the literature regarding (1) the sensitivity of ultrasound in detecting congenital anomalies, (2) the rate at which pregnancies are terminated upon detection of fetal anomalies, (3) the number of ultrasounds performed per pregnancy under a routine screening policy, and (4) the average cost of an ultrasound. We assumed a 100% subsequent replacement rate of terminated pregnancies with a normal child, an assumption most favorable to routine screening. The benefit-to-cost ratio ranged from .33 to 3, suggesting that a routine screening policy for fetal anomalies is of uncertain net societal benefit. Routine screening may be justified, however, based on standards that elude the methods for establishing societal benefits adopted in this analysis.

Contribution of birth defects and genetic diseases to pediatric hospitalizations. A population-based study

OBJECTIVE

To estimate the contribution of birth defects and genetic diseases to pediatric hospitalizations by use of population-based data.

DESIGN

Hospital discharges were categorized according to the diagnostic codes of The International Classification of Diseases, Ninth Revision, Clinical Modification. Hospitalizations that were related to birth defects and genetic diseases were compared with hospitalizations for other reasons, with respect to age, race/ethnicity, sex, length of stay, charges, source of payment, and mortality rate. Hospitalization rates and per capita charges were computed with the use of population estimates from 1990 census data.

MATERIALS

The 1991 population-based hospital discharge data from California and South Carolina.

RESULTS

Nearly 12% of pediatric hospitalizations in the 2 states combined were related to birth defects and genetic diseases. These children were, on average, about 3 years younger, stayed 3 days longer in a hospital, incurred 184% higher charges, and had a 4 1/2 times greater in-hospital mortality rate than children who were hospitalized for other reasons. The rate of hospitalizations that were related to birth defects and genetic diseases was 4 per 1000 children in both states, but these rates varied by age and race.

CONCLUSION

These population-based data are the first contemporary findings to show the substantial morbidity rate and hospitalization charges associated with birth defects and genetic diseases in the pediatric population.

IMPLICATIONS

This information is important for planning effective health care strategies, especially as the causes, treatments, and prevention of these disorders are being further elucidated by findings from human genome research and epidemiologic studies.

Potential health economic benefits of vitamin supplementation

This study used published relative risk estimates for birth defects, premature birth, and coronary heart disease associated with vitamin intake to project potential annual cost reductions in U.S. hospitalization charges. Epidemiological and intervention studies with relative risk estimates were identified via MEDLINE. Preventable fraction estimates were derived from data on the percentage of at-risk Americans with daily vitamin intake levels lower than those associated with disease risk reduction. Hospitalization rates were obtained from the 1992 National Hospital Discharge Survey. Charge data from the 1993 California Hospital Discharge Survey were adjusted to 1995 national charges using the medical component of the Consumer Price Index. Based on published risk reductions, annual hospital charges for birth defects, low-birth-weight premature births, and coronary heart disease could be reduced by about 40, 60, and 38%, respectively. For the conditions studied, nearly $20 billion in hospital charges were potentially avoidable with daily use of folic acid and zinc-containing multivitamins by all women of childbearing age and daily vitamin E supplementation by those over 50.