Financial incentive and the use of mammography among Hispanic migrants to the United States

Addressing Disparities Related to Access of Multimodality Breast Imaging Services Before and During the COVID-19 Pandemic

Despite technological advancements focused on reducing breast cancer mortality through early detection, there have been reported disparities in the access to these imaging services with underserved patient populations (including racial minority groups and patients of low socioeconomic status) showing underutilization compared to other patient groups. These underserved populations tend to have more advanced breast cancer presentations, in part due to delays in diagnosis resulting in later stage of disease presentation. To make matters worse, the COVID-19 pandemic declared in March 2020 has resulted in significant healthcare disruptions leading to extensive delays in breast imaging services which are expected to negatively impact breast cancer mortality long-term. Given the worsening disparity in breast cancer mortality among racial/ethnic minorities and financially disadvantaged groups, it is vital to address these disparity gaps with the goal of reducing the barriers to timely breast cancer diagnosis and addressing breast cancer mortality differences among breast cancer patients. Therefore, this review aims to provide a discussion highlighting the disparities related to breast imaging access, the effects of the COVID-19 pandemic on these disparities, current targeted interventions implemented in breast imaging practices to reduce these disparities, and future directions on the journey to reducing disparity gaps for breast imaging patients. Tackling the root cause factors of the persistent breast cancer-related disparities is critical to meeting the needs of patients who are disadvantaged and can lead to continued improvement in the quality of individualized care for patients who have higher breast cancer morbidity and mortality risks.

Increasing hepatitis virus screening uptake at worksites in Japan using nudge theory and full subsidies

BACKGROUND

Despite the importance of hepatitis screening for decreasing liver cancer mortality, screening rates remain low in Japan. Previous studies show that full subsidies increase screening uptake, but full subsidies are costly and difficult to implement in low-resource settings. Alternatively, applying nudge theory to the message design could increase screening at lower costs. This study examined the effects of both methods in increasing hepatitis virus screening rates at worksites.

METHODS

1496 employees from a Japanese transportation company received client reminders for an optional hepatitis virus screening before their general health checkups. Groups A and B received a client reminder designed based on the principles of "Easy" and "Attractive," while the control group received a client reminder not developed using nudge theory. Additionally, hepatitis virus screening was offered to the control group and group A for a co-payment of JPY 612, but was fully subsidized for group B. The hepatitis virus screening rates among the groups were compared using a Chi-square test with Bonferroni correction, and the risk ratios of group A and group B to the control group were also calculated. To adjust for unobservable heterogeneity per cluster, the regression analysis was performed using generalized linear mixed models.

RESULTS

The screening rate was 21.2%, 37.1%, and 86.3% for the control group, group A, and group B, respectively. And the risk ratio for group A was 1.75 (95% confidence interval [CI] 1.45-2.12) and that of group B was 4.08 (95% CI 3.44-4.83). The parameters of group A and group B also were significant when estimated using generalized linear mixed models. However, the cost-effectiveness (incremental cost-effectiveness ratio (ICER)) of the nudge-based reminder with the full subsidies was lower than that of only the nudge-based reminder.

CONCLUSIONS

While fully subsidized screening led to the highest hepatitis screening rates, modifying client reminders using nudge theory significantly increased hepatitis screening uptake at lower costs per person.

Systematic Review of Mammography Screening Educational Interventions for Hispanic Women in the United States

In the United States (U.S.), Hispanics experience breast cancer disparities. Breast cancer is the leading cause of cancer-related death among Hispanic women, and Hispanic women receive mammography screening at lower rates than some other ethnic groups. This low rate of screening mammography is associated with increased risk for possible late-stage diagnosis and lower survival rates. Educational interventions could play a role in increasing screening mammography rates among Hispanic women. This systematic review synthesized the current literature on educational interventions to increase mammography screening among Hispanic women. The review included studies published between May 2003 and September 2017 with experimental and quasi-experimental interventions to increase mammography screening among Hispanics in the U.S. Five studies out of an initial 269 studies met inclusion criteria for the review. All studies employed an interpersonal intervention strategy with community health workers, or promotoras, to deliver the mammography screening intervention. For each study, odds ratios (OR) were calculated to estimate intervention effectiveness based on similar follow-up time periods. The study ORs resulted in a narrow range between 1.02 and 2.18, indicating a low to moderate intervention effect for these types of interpersonal cancer education interventions. The summary OR for the random effects model was 1.67 (CI 1.24-2.26). Hispanics exhibit lower levels of adherence to screening mammography than non-Hispanic whites. Interpersonal cancer education interventions such as the use of promotoras may help to mediate the impact of barriers to receiving a mammogram such as low health literacy, deficits in knowledge about the benefits of screening, and low awareness of the availability of screening services.

Time to Follow-up After Colorectal Cancer Screening by Health Insurance Type

INTRODUCTION

The purpose of this study was to test the hypothesis that patients with Medicaid insurance or Medicaid-like coverage would have longer times to follow-up and be less likely to complete colonoscopy compared with patients with commercial insurance within the same healthcare systems.

METHODS

A total of 35,009 patients aged 50-64years with a positive fecal immunochemical test were evaluated in Northern and Southern California Kaiser Permanente systems and in a North Texas safety-net system between 2011 and 2012. Kaplan-Meier estimation was used between 2016 and 2017 to calculate the probability of having follow-up colonoscopy by coverage type. Among Kaiser Permanente patients, Cox regression was used to estimate hazard ratios and 95% CIs for the association between coverage type and receipt of follow-up, adjusting for sociodemographics and health status.

RESULTS

Even within the same integrated system with organized follow-up, patients with Medicaid were 24% less likely to complete follow-up as those with commercial insurance. Percentage receiving colonoscopy within 3 months after a positive fecal immunochemical test was 74.6% for commercial insurance, 63.10% for Medicaid only, and 37.5% for patients served by the integrated safety-net system.

CONCLUSIONS

This study found that patients with Medicaid were less likely than those with commercial insurance to complete follow-up colonoscopy after a positive fecal immunochemical test and had longer average times to follow-up. With the future of coverage mechanisms uncertain, it is important and timely to assess influences of health insurance coverage on likelihood of follow-up colonoscopy and identify potential disparities in screening completion.

Financial disincentives? A three-armed randomised controlled trial of the effect of financial Incentives in Diabetic Eye Assessment by Screening (IDEAS) trial

Objective

Conflicting evidence exists regarding the impact of financial incentives on encouraging attendance at medical screening appointments. The primary aim was to determine whether financial incentives increase attendance at diabetic eye screening in persistent non-attenders.

Methods and analysis

A three-armed randomised controlled trial was conducted in London in 2015. 1051 participants aged over 16 years, who had not attended eye screening appointments for 2 years or more, were randomised (1.4:1:1 randomisation ratio) to receive the usual invitation letter (control), an offer of £10 cash for attending screening (fixed incentive) or a 1 in 100 chance of winning £1000 (lottery incentive) if they attend. The primary outcome was the proportion of invitees attending screening, and a comparative analysis was performed to assess group differences. Pairwise comparisons of attendance rates were performed, using a conservative Bonferroni correction for independent comparisons.

Results

34/435 (7.8%) of control, 17/312 (5.5%) of fixed incentive and 10/304 (3.3%) of lottery incentive groups attended. Participants who received any incentive were significantly less likely to attend their appointment compared with controls (risk ratio (RR)=0.56; 95% CI 0.34 to 0.92). Those in the probabilistic incentive group (RR=0.42; 95% CI 0.18 to 0.98), but not the fixed incentive group (RR=1.66; 95% CI 0.65 to 4.21), were significantly less likely to attend than those in the control group.

Conclusion

Financial incentives, particularly lottery-based incentives, attract fewer patients to diabetic eye screening than standard invites in this population. Financial incentives should not be used to promote screening unless tested in context, as they may negatively affect attendance rates.

Incentives in Diabetic Eye Assessment by Screening (IDEAS) trial: a three-armed randomised controlled trial of financial incentives

Background

The UK national diabetic eye screening (DES) programme invites diabetic patients aged > 12 years annually. Simple and cost-effective methods are needed to increase screening uptake. This trial tests the impact on uptake of two financial incentive schemes, based on behavioural economic principles.

Objectives

To test whether or not financial incentives encourage screening attendance. Secondarily to understand if the type of financial incentive scheme used affects screening uptake or attracts patients with a different sociodemographic status to regular attenders. If financial incentives were found to improve attendance, then a final objective was to test cost-effectiveness.

Design

Three-armed randomised controlled trial.

Setting

DES clinic within St Mary’s Hospital, London, covering patients from the areas of Kensington, Chelsea and Westminster.

Participants

Patients aged ≥ 16 years, who had not attended their DES appointment for ≥ 2 years.

Interventions

(1) Fixed incentive – invitation letter and £10 for attending screening; (2) probabilistic (lottery) incentive – invitation letter and 1% chance of winning £1000 for attending screening; and (3) control – invitation letter only.

Main outcome measures

The primary outcome was screening attendance. Rates for control versus fixed and lottery incentive groups were compared using relative risk (RR) and risk difference with corresponding 95% confidence intervals (CIs).

Results

A total of 1274 patients were eligible and randomised; 223 patients became ineligible before invite and 1051 participants were invited (control,n = 435; fixed group,n = 312; lottery group,n = 304). Thirty-four (7.8%, 95% CI 5.29% to 10.34%) control, 17 (5.5%, 95% CI 2.93% to 7.97%) fixed group and 10 (3.3%, 95% CI 1.28% to 5.29%) lottery group participants attended. Participants offered incentives were 44% less likely to attend screening than controls (RR 0.56, 95% CI 0.34 to 0.92). Examining incentive groups separately, the lottery group were 58% less likely to attend screening than controls (RR 0.42, 95% CI 0.18 to 0.98). No significant differences were found between fixed incentive and control groups (RR 0.70, 95% CI 0.35 to 1.39) or between fixed and lottery incentive groups (RR 1.66, 95% CI 0.65 to 4.21). Subgroup analyses showed no significant associations between attendance and sociodemographic factors, including gender (female vs. male, RR 1.25, 95% CI 0.77 to 2.03), age (≤ 65 years vs. > 65 years, RR 1.26, 95% CI 0.77 to 2.08), deprivation [0–20 Index of Multiple Deprivation (IMD) decile vs. 30–100 IMD decile, RR 1.12, 95% CI 0.69 to 1.83], years registered [mean difference (MD) –0.13, 95% CI –0.69 to 0.43], and distance from screening location (MD –0.18, 95% CI –0.65 to 0.29).

Limitations

Despite verification, some address details may have been outdated, and high ethnic diversity may have resulted in language barriers for participants.

Conclusions

Those receiving incentives were not more likely to attend a DES than those receiving a usual invitation letter in patients who are regular non-attenders. Both fixed and lottery incentives appeared to reduce attendance. Overall, there is no evidence to support the use of financial incentives to promote diabetic retinopathy screening. Testing interventions in context, even if they appear to be supported by theory, is important.

Future work

Future research, specifically in this area, should focus on identifying barriers to screening and other non-financial methods to overcome them.

Trial registration

Current Controlled Trials ISRCTN14896403.

Funding

This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full inHealth Services and Delivery Research; Vol. 5, No. 15. See the NIHR Journals Library website for further project information.

Cultural adaptations to augment health and mental health services: a systematic review

BACKGROUND

Membership in diverse racial, ethnic, and cultural groups is often associated with inequitable health and mental health outcomes for diverse populations. Yet, little is known about how cultural adaptations of standard services affect health and mental health outcomes for service recipients. This systematic review identified extant themes in the research regarding cultural adaptations across a broad range of health and mental health services and synthesized the most rigorous experimental research available to isolate and evaluate potential efficacy gains of cultural adaptations to service delivery.

METHODS

MEDLINE, PsycINFO, CINAHL, EMBASE, and grey literature sources were searched for English-language studies published between January 1955 and January 2015. Cultural adaptations to any aspect of a service delivery were considered. Outcomes of interest included changes in service provider behavior or changes in the behavioral, medical, or self-reported experience of recipients.

RESULTS

Thirty-one studies met the inclusion criteria. The most frequently tested adaptation occurred in preventive services and consisted of modifying the content of materials or services delivered. None of the included studies focused on making changes in the provider's behavior. Many different populations were studied but most research was concerned with the experiences and outcomes of African Americans. Seventeen of the 31 retained studies observed at least one significant effect in favor of a culturally adapted service. However there were also findings that favored the control group or showed no difference. Researchers did not find consistent evidence supporting implementation of any specific type of adaptation nor increased efficacy with any particular cultural group.

CONCLUSIONS

Conceptual frameworks to classify cultural adaptations and their resultant health/mental health outcomes were developed and applied in a variety of ways. This review synthesizes the most rigorous research in the field and identifies implications for policy, practice, and research, including individualization, cost considerations, and patient or client satisfaction, among others.

Interventions to increase mammography rates among U.S. Latinas: a systematic review

BACKGROUND

In the United States, health disparities exist in mammography rates for Latinas compared with other ethnic groups. Additionally, breast cancer is the most commonly diagnosed cancer and the leading cause of cancer deaths among Latina women. Increased mammography rates and earlier breast cancer diagnosis can decrease breast cancer fatality rates among Latina women.

METHODS

The purpose of this systematic review was to contribute to the knowledge basis on breast cancer prevention for U.S. Latinas by determining the effectiveness of interventions designed to increase mammography rates among this population. Both experimental and quasi-experimental studies were included in the systematic review, and nine were located that met inclusion criteria.

RESULTS

Odds ratios were calculated, and the overall effect indicated a low level of effectiveness.

CONCLUSIONS

Implications of findings for practice and research are discussed.

Client-directed interventions to increase community access to breast, cervical, and colorectal cancer screening a systematic review

Most major medical organizations recommend routine screening for breast, cervical, and colorectal cancers. Screening can lead to early detection of these cancers, resulting in reduced mortality. Yet not all people who should be screened are screened, either regularly or, in some cases, ever. This report presents the results of systematic reviews of effectiveness, applicability, economic efficiency, barriers to implementation, and other harms or benefits of interventions designed to increase screening for breast, cervical, and colorectal cancers by increasing community access to these services. Evidence from these reviews indicates that screening for breast cancer (by mammography) has been increased effectively by reducing structural barriers and by reducing out-of pocket client costs, and that screening for colorectal cancer (by fecal occult blood test) has been increased effectively by reducing structural barriers. Additional research is needed to determine whether screening for cervical cancer (by Pap test) can be increased by reducing structural barriers and by reducing out-of-pocket costs, whether screening for colorectal cancer (fecal occult blood test) can be increased by reducing out-of-pocket costs, and whether these interventions are effective in increasing the use of other colorectal cancer screening procedures (i.e., flexible sigmoidoscopy, colonoscopy, double contrast barium enema). Specific areas for further research are also suggested in this report.

Interventions to enhance breast cancer screening, diagnosis, and treatment among racial and ethnic minority women

The authors conduct a systematic review of the literature to identify interventions designed to enhance breast cancer screening, diagnosis, and treatment among minority women. Most trials in this area have focused on breast cancer screening, while relatively few have addressed diagnostic testing or breast cancer treatment. Among patient-targeted screening interventions, those that are culturally tailored or addressed financial or logistical barriers are generally more effective than reminder-based interventions, especially among women with fewer financial resources and those without previous mammography. Chart-based reminders increase physician adherence to mammography guidelines but are less effective at increasing clinical breast examination. Several trials demonstrate that case management is an effective strategy for expediting diagnostic testing after screening abnormalities have been found. Additional support for these and other proven health care organization-based interventions appears justified and may be necessary to eliminate racial and ethnic breast cancer disparities.

Cost as a barrier to screening mammography among underserved women

BACKGROUND

Breast cancer is a troublesome health problem, particularly among underserved and minority women. Early detection through screening mammography can reduce the impact of this disease, yet it remains underused. Objective. We examined cost as a barrier to screening mammography and studied the accuracy of women's perceptions of the cost of a mammogram among a rural, low-income, tri-racial (white, Native American and African American) population in need of a mammogram.

DESIGN

We interviewed 897 women age 40 and older, asking about cost as a barrier to mammography and perceptions about the actual costs of a screening mammogram. Face-to-face interviews were conducted between 1998 and 2000 among women participating in a randomized, controlled study to evaluate a health education intervention to improve mammography screening rates in an underserved population. All data used in these analyses were from the baseline interviews.

RESULTS

Cost acted as a barrier to screening mammography for a majority of the participants (53%). More than half of these women (52%), however, overestimated the cost of a screening mammogram, and overestimation of the cost was significantly related to mentioning cost as a barrier (OR 1.56, 95% CI 1.04-2.33). Higher estimates of out-of-pocket costs were associated with reporting cost as a barrier to mammography (OR 2.25, 95% CI 1.43-3.52 for $1-50 and OR 12.64, 95% CI 6.61-24.17 for >$50). Factors such as race, income and employment status were not related to reporting cost as a barrier to screening mammography.

CONCLUSIONS

Among a group of tri-racial, low-income, rural women who were in need of a mammogram, cost was a common barrier. Overestimating the cost, however, was significantly and positively associated with reporting cost as a barrier. Providing information about the actual cost women have to pay for mammograms may lessen the role of cost as a barrier to mammography screening, especially for underserved women, potentially improving utilization rates.

How important are psychosocial predictors of mammography receipt among older women when immediate access is provided via on-site service?

PURPOSE

The purpose of the study was to examine the relative importance of psychosocial variables (i.e., health beliefs, knowledge, barriers) in predicting mammogram receipt compared with providing access through a mobile mammography unit among older women who participated in a mobile mammography intervention.

DESIGN

The data were collected during a randomized trial involving 499 women (60 to 84 years old) recruited from 60 community sites.

SETTING

The study was conducted at 60 sites in Los Angeles where seniors gather, including meal sites, senior centers, and recreational clubs.

SUBJECTS

Participants were older women (60 to 84 years old) who spoke English or Spanish, had a telephone, had no significant cognitive deficits, and had not received a mammogram during the past 12 months.

MEASURES

The baseline survey assessed demographics and psychosocial factors (i.e., health beliefs, knowledge, barriers). A follow-up telephone survey at 3 months assessed mammography receipt.

RESULTS

Results support the importance of behavioral intentions in predicting mammogram receipt, even among women able to access a mammogram through the mobile unit. However, other recognized psychosocial factors failed to predict screening receipt among women randomized to the mobile mammography intervention. Results suggest that the importance of psychosocial predictors might be diminished when a major access barrier has been removed, and they highlight the importance of convenience.

CONCLUSION

Future interventions should focus on not only removing obvious concrete and psychosocial barriers but also on enhancing convenience.

Cervical cancer among Hispanic women: assessing the impact on farmworkers

The purpose of this paper was to review the literature on Hispanic populations to outline: 1) demographics; 2) general health status; 3) cervical cancer incidence and mortality; 4) Pap smear screening rates; and 5) barriers to preventive care services. The methods: MEDLINE, Med66, Med75, and Med85 files, from 1966 to 1999, were searched for key words Hispanic health, cervical cancer and Hispanics, cervical cancer and Mexico, migrants and health, agricultural occupational health, farmworkers and cancer, and farmworker health. AGRICOLA (1982-98) was searched for key words farmworker health, agricultural workers and health, and agriculture and cancer. The results show that Hispanic immigrant women may have cervical cancer incidence rates ranging between the California rates for 1991-93 (19.8/100,000) and for Mexico in 1990 (115-220 per 100,000). Mortality rates for the same periods were 3.9/100,000 and 16.11/100,000 respectively. While survey results report Hispanic Pap smear rates above 70%, these surveys count urban women who do not share the barriers to care experienced by poor rural Hispanics. Since validated self-reports of survey responses are 20-50% lower than reported lower rates and Pap smear screening persist in Hispanic Pap evaluations and are reflected in higher morbidity and mortality from cervical cancer. That targeted community interventions have been successful in raising Pap smear rates among poor Spanish-speaking women. Such interventions should be a priority for preventive health care policy and practice.

A systematic review of mammography educational interventions for low-income women

OBJECTIVE

We conducted a systematic review to examine the effectiveness of educational interventions in increasing mammography screening among low-income women.

DATA SOURCES

Bibliographic databases, including MEDLINE, The Cochrane Central Register of Controlled Trials, The Cochrane Database of Systematic Reviews, and the ISI Web of Science, were searched for relevant articles.

STUDY INCLUSION AND EXCLUSION CRITERIA

Randomized, community-based trials targeting low-income women and published between January 1980 and March 2003 were included.

DATA EXTRACTION

The search yielded 242 studies; 24 met all inclusion criteria.

DATA SYNTHESIS

Three studies used mammography vans, three used low-cost vouchers or provided free mammograms, three used home visits, one used community education alone, one provided referrals, five incorporated multiple intervention strategies, two used phone calls, one used videos and print material, and five used primarily print material.

RESULTS

Of nine studies that reduced barriers to care via mammography vans, cost vouchers, or home visits, eight showed statistically significant increases in mammography screening. Seven of the eight studies that used peer educators had significant increases in screening, as did four of the five studies that used multiple (intervention) components.

CONCLUSIONS

Interventions that used peer educators, incorporated multiple intervention strategies, or provided easy access via vans, cost vouchers, or home visits were effective in increasing screenings. Mailed letter or telephone reminders were not effective in trials involving low-income women, which is contrary to findings from middle/upper-income studies.

Visual field testing in glaucoma Medicare beneficiaries before surgery

OBJECTIVE

The standard of care for progressive glaucoma that requires medical or surgical intervention includes visual field (VF) testing at least annually. This study aims to assess how commonly ophthalmologists perform VF testing before planned glaucoma surgery in the Medicare population, and whether variations in conformance occur across demographic and clinical subgroups.

DESIGN

Retrospective, observational, population-based analysis.

PARTICIPANTS

Thirteen thousand seven hundred fifty-three Medicare beneficiaries.

METHODS

Data were obtained from a 5% random sample of Medicare beneficiaries undergoing glaucoma surgery in the United States from 1995 to 1999. The proportion of patients with evidence of at least 1 VF examination in the year before glaucoma surgery was determined.

MAIN OUTCOME MEASURE

Rate of VF testing in the year before glaucoma surgery.

RESULTS

Overall, 70% of patients had at least 1 VF test in the year preceding glaucoma surgery. This rate was significantly lower (P<0.001) in patients > or =85 years (56%), blacks (64%), patients with race other than white or black (66%), patients with diabetic retinopathy (60%), and patients with bilateral blindness (47%).

CONCLUSIONS

The use of VF testing before surgery in glaucoma Medicare beneficiaries is suboptimal relative to the recommended standard of care. Underutilization is of particular concern in blacks, who are at increased risk of glaucomatous damage. Quality-of-care initiatives are needed to facilitate appropriate preoperative evaluations of glaucoma Medicare beneficiaries for glaucoma surgery.

Promoting cancer screening: Learning from experience

This article provides an overview of behavioral and social science cancer screening intervention research and introduces the scope of topics addressed in this supplement to Cancer. The authors identify and address issues to consider before conducting interventions to promote the uptake of screening tests, such as the benefits and harms associated with screening. Trends in the use of cancer screening tests are discussed in the context of their efficacy and adoption over time. Both the development and breadth of social and behavioral intervention research intended to increase the use of effective tests are reviewed as background for the articles that follow. The application of the lessons from this extensive knowledge base not only should accelerate the uptake of the effective cancer screening tests currently available, but also can guide future directions for research.

Lessons learned from community-based cancer screening intervention research

Behaviors associated with cancer screening have been the focus of intensive research over the past 2 decades, primarily in the form of intervention trials to improve screening based in both clinical and community settings. Meta-analyses and literature reviews have synthesized and organized the resulting literature. From the accumulated work, this review distilled lessons learned from cancer screening intervention research in community settings. The authors posed the question, "What do we know about the development of effective community-based interventions (the level of good over harm achieved in real-world conditions)?" Framed around the concept of focal points (the simultaneous combination of target population, behavioral objective, and setting for an intervention), 13 lessons were derived. One lesson was cross-cutting, and the other lessons addressed the three focal-point components and the major intervention categories (access-enhancing strategies, mass media, small media, one-on-one and small-group education, and combinations of these categories). To build more systematically on existing research, recommendations are made for new directions in basic behavioral and intervention research.

Screening mammography practice essentials

A successful screening mammography practice has three directives. The first directive is quality mammography interpretation, which results in detection of a high percentage of early stage breast cancers, an acceptable recall rate, and an acceptable biopsy rate and yield. The second directive is providing a cost-efficient service. The third directive is access for as many eligible women as possible. Strategies that have helped improve screening mammography access for underserved women are discussed in this article.

Disparities in screening mammography. Current status, interventions and implications

OBJECTIVE

This paper describes trends in screening mammography utilization over the past decade and assesses the remaining disparities in mammography use among medically underserved women. We also describe the barriers to mammography and report effective interventions to enhance utilization.

DESIGN

We reviewed medline and other databases as well as relevant bibliographies.

MAIN RESULTS

The United States has dramatically improved its use of screening mammography over the past decade, with increased rates observed in every demographic group. Disparities in screening mammography are decreasing among medically underserved populations but still persist among racial/ethnic minorities and low-income women. Additionally, uninsured women and those with no usual care have the lowest rates of reported mammogram use. However, despite apparent increases in mammogram utilization, there is growing evidence that limitations in the national survey databases lead to overestimations of mammogram use, particularly among low-income racial and ethnic minorities.

CONCLUSIONS

The United States may be farther from its national goals of screening mammography, particularly among underserved women, than current data suggests. We should continue to support those interventions that increase mammography use among the medically underserved by addressing the barriers such as cost, language and acculturation limitations, deficits in knowledge and cultural beliefs, literacy and health system barriers such as insurance and having a source regular of medical care. Addressing disparities in the diagnostic and cancer treatment process should also be a priority in order to affect significant change in health outcomes among the underserved.

Interventions for patients, providers, and health care organizations

Clinicians and the organizations within which they practice play a major role in enabling patient participation in cancer screening and ensuring quality services. Guided by an ecologic framework, the authors summarize previous literature reviews and exemplary studies of breast, cervical, and colorectal cancer screening intervention studies conducted in health care settings. Lessons learned regarding interventions to maximize the potential of cancer screening are distilled. Four broad lessons learned emphasize that multiple levels of factors-public policy, organizational systems and practice settings, clinicians, and patients-influence cancer screening; that a diverse set of intervention strategies targeted at each of these levels can improve cancer screening rates; that the synergistic effects of multiple strategies often are most effective; and that targeting all components of the screening continuum is important. Recommendations are made for future research and practice, including priorities for intervention research specific to health care settings, the need to take research phases into consideration, the need for studies of health services delivery trends, and methods and measurement issues.

Primary care cancer control interventions including Latinos: a review

BACKGROUND

Even though 86% of adult Latinos have a usual source of care, there is a paucity of literature on primary care-based interventions to promote cancer prevention and control in this population. This systematic review examines published primary care-based cancer control interventions that included Latinos.

METHODS

MEDLINE, the Cochrane Registry, and EMBASE were searched from January 1985 to January 2003. Any primary care-based intervention using a controlled trial, quasi-experimental, or pre-post design that targeted breast, cervical, or colorectal cancer was included if at least 5% of the sample was Latino.

RESULTS

A total of 14 intervention studies met inclusion criteria. Seven of the 14 studies described patient or provider reminder interventions. Other interventions incorporated into the primary care setting one of the following: community health educators, culturally sensitive videos, audit with feedback, materials from the "Put Prevention Into Practice" campaign, and vouchers for free screenings. The heterogeneity of designs and outcome variables and the low number of Latinos presented obstacles to combining data to estimate the overall effectiveness of primary care interventions for this population. Qualitatively, patient and physician reminders and management systems strategies including audit with feedback for providers appear to result in improved screening utilization.

CONCLUSIONS

There is a paucity of data on the effectiveness of primary care cancer control interventions directed at Latinos. Primary care-based interventions that have been effective in non-Latinos could incorporate culturally appropriate elements and lessons from community-based research and could be applied to Latinos so that their effectiveness can be assessed in this group.

The health of U.S. hired farm workers

Despite a recent surge in knowledge about U.S. hired farm workers, little is known about the health of this population. No national data are available on the size of the population, mortality or morbidity data, or on chronic health indicators. Demographic data show that these workers are mostly Mexican immigrant or migrant males, and nearly two thirds live in poverty. At least half of all current hired farm workers are undocumented. Fewer than one in five have health insurance, either through their employer or through government programs. However, programs targeting women farm workers, such as WIC or, in California, emergency MediCal, are more effective in helping them obtain needed services. The federal Migrant Health Program serves about 13% of the total of workers plus dependent family members. This paper reviews what is known in the following topical areas: (a) mortality and morbidity; (b) access to health care services; (c) control of infectious diseases; (d) maternal and child care; (e) occupational health; (f) violence; and (g) chronic health indicators. It is suggested that future research incorporate a minimal physical examination of all patients or subjects in order to establish baseline information for the population. Such information will be helpful in targeting interventions and measuring their effectiveness.

The Health of U.S. Hired Farm Workers

▪ Abstract  Despite a recent surge in knowledge about U.S. hired farm workers, little is known about the health of this population. No national data are available on the size of the population, mortality or morbidity data, or on chronic health indicators. Demographic data show that these workers are mostly Mexican immigrant or migrant males, and nearly two thirds live in poverty. At least half of all current hired farm workers are undocumented. Fewer than one in five have health insurance, either through their employer or through government programs. However, programs targeting women farm workers, such as WIC or, in California, emergency MediCal, are more effective in helping them obtain needed services. The federal Migrant Health Program serves about 13% of the total of workers plus dependent family members. This paper reviews what is known in the following topical areas: (a) mortality and morbidity; (b) access to health care services; (c) control of infectious diseases; (d) maternal and child care; (e) occupational health; (f) violence; and (g) chronic health indicators. It is suggested that future research incorporate a minimal physical examination of all patients or subjects in order to establish baseline information for the population. Such information will be helpful in targeting interventions and measuring their effectiveness.

Breast and cervical cancer screening among migrant and seasonal farmworkers: a review

Women constitute about one in five hired farmworkers in the US. Their health may be affected by exposure to unhealthy living and working conditions, by increased exposure to health hazards, by poverty, and by poor utilization of health care and preventive services. About 69% of migrant and seasonal farmworkers were born outside the US, mostly in Mexico and central America, and many speak little English. The health concerns of women who are migrant and seasonal farmworkers include breast and cervical cancer, which can be prevented or controlled through routine screening, but cancer incidence and mortality data for migrant workers are sparse. We reviewed published studies that examined breast and cervical cancer screening in this population. These studies include cross-sectional surveys, health needs assessments, and randomized and non-randomized intervention trials. A review of published studies of cancer screening among women who are migrant and seasonal farmworkers indicates that underutilization of mammograms and Papanicolau (Pap) tests among this population may stem from their limited awareness of the importance of cancer screening and cultural beliefs. Other barriers include cost, lack of health insurance, lack of transportation and child care difficulties. The extent to which results obtained in selected localities are generalizable to other settings is uncertain, but results to date provide important information about possible approaches for increasing cancer screening among women migrant farmworkers.

Keeping mammography referral appointments: motivation, health beliefs, and access barriers experienced by older minority women

Older women of color tend to have much lower rates of regular mammography screening for breast cancer than younger Caucasian women; yet, they have higher rates of mortality. This study was designed to increase mammography rates among inner-city women aged 50 years or older. Another goal was to investigate differences in mammography utilization related to race/ethnicity and language after barriers associated with cost and the difficulty of making an appointment are removed. A peer delivered intervention, which consisted of interview, mammography referral, and the scheduling of a next-day appointment, was conducted among a convenience sample of 151 culturally and racially diverse older women through a primary care referral project operating within an urban emergency department (ED). A brief motivational interview and mammography referral at the time of an ED visit, including scheduling of a next-day no cost appointment, was followed by a cross-sectional telephone survey of utilization and motivating and hindering factors. Follow-up was achieved with 96 women (66%). Fifty-eight women (60%) had a post-intervention mammogram; of those, 69% were first time users. More than 90% planned a repeat mammogram the following year. Of the 27 who did not receive a mammogram, 21 (77%) requested a "second try" appointment. These findings demonstrate that an interactive intervention among older women of color has the potential to dramatically increase mammography rates.

Randomised studies of income supplementation: a lost opportunity to assess health outcomes

BACKGROUND

Despite the wealth of evidence linking low income to ill health, there is little information from randomised studies on how much and how quickly these risks can be reversed by improvements in income.

OBJECTIVE

To conduct a systematic review of randomised studies of income supplementation, with particular reference to health outcomes.

DESIGN

Extensive searches of electronic databases and contact with previous authors. As well as searching for trials that were specifically designed to assess the effects of increased income, studies of winners and losers of lotteries were also sought: if winning is purely chance, such studies are, in effect, randomised trials of increased income.

RESULTS

Ten relevant studies were identified, all conducted in North America, mostly in the late 1960s and 1970s. Five trials were designed to assess the effects of income supplementation on workforce participation and randomised a total of 10,000 families to 3-5 years of various combinations of minimum income guarantees and reduced tax rates. Two trials were designed to assess re-offending rates in recently released prisoners and randomised a total of 2400 people to 3-6 months of benefits. One trial was designed to assess housing allowances and randomised 3500 families to three years of income supplements. One trial assessed the health effects of 12 months of income supplementation in 54 people with severe mental illness. Finally, one study compared three groups of people who won different amounts of money in a state lottery. In all these studies the interventions resulted in increases in income of at least one fifth. However, no reliable analyses of health outcome data are available.

CONCLUSIONS

Extensive opportunities to reliably assess the effects of increases in income on health outcomes have been missed. Such evidence might have increased the consideration of potential health effects during deliberations about policies that have major implications for income, such as taxation rates, benefit policies, and minimum wage levels. Randomised evidence could still be obtained with innovative new studies, such as trials of full benefit uptake or prospective studies of lottery winners in which different sized winnings are paid in monthly installments over many years.