Impact of a Personal Response System on Hospital Use by Low-Income African American and White Elders Brenda F. McGadney-Douglass Journal of Health Care for the Poor and Underserved, Volume 12, Number 4, November 2001, pp. 490-503 (Article) Published by Johns Hopkins University Press DOI: https://doi.org/10.1353/hpu.2010.0751 For additional information about this article https://muse.jhu.edu/article/269806/summary Access provided by University of Ghana (25 Feb 2019 09:57 GMT) 490 Original paper IMPACT OF A PERSONAL RESPONSE SYSTEM ON HOSPITAL USE BY LOW-INCOME AFRICAN AMERICAN AND WHITE ELDERS BRENDA E McGADNEY-DOUGLASS, MSW, PhD University of Ghana Abstract: In 1994, the American Red Cross initiated a subsidized per- sonal response system program for low-income elders in the Detroit area to help these elders maintain their independence at home. Data were col- lected on 379 low-income, at-risk elderly clients from Detroit and sur- rounding Wayne County, Michigan. More than 80 percent of the sample were African American (n = 313), and the remainder were white (n = 66) elders. Statistically significant changes in number of emergency room vis- its only occurred among white subscribers, increasing on average by 1.4 annual visits. One year after the installation of the personal response sys- tem, white users were twice as likely as the African Americans to make an emergency room visit or to stay overnight in the hospital. Subsidized per- sonal response system may be an appropriate third-party government- supported secondary interventionfor home-based low-income and at-risk elders to prevent premature emergency room use, hospitalizations, and institutional placements. Key words: Elders, minority health care, personal response systems, long-term care, length of stay, hospitalization. The U.S. elderly population is growing rapidly. Older people (65 years and older) are expected to make up 20 percent of the entire U.S. population by year 2030.1 The most dramatic increases are projected to occur between the years 2020 and 2050. By 2020, the proportion of elderly people who are among the oldest old (80 years and older) is projected to be 17 percent. Those figures will increase substantially once "baby boomers" start to become elderly in 2026.1 Minority populations are projected to represent 25 percent of the elderly population in 2030 compared with 13 percent in 1990. Today, life expectancy is 76 years in the United States; it is expected to reach 83 years by 2050.1 The vast majority of today's elders are living healthier longer. However, a growing number of older people are living longer with multiple chronic ill- Received April 20,1999; revised August 18 2000 and June 2001; accepted June 30,2001. Journal of Health Care for the Poor and Underserved · Vol. 12, No. 4 · 2001 McGadney-Douglass 491 nesses and disabilities.1 Their needs are putting increasing pressure on com- munity-based social and health services nationwide. Although elderly Amer- icans represented 12.6 percent of the population in 1987, Medicare accounted for 42 percent of acute care hospital admissions.2,3 The average length of stay (LOS) of elders 65 years and older, according to the annual National Hospital Discharge Survey of the United States, is 7.2 days for males and 7.5 days for females.4 The impact on hospitals serving increasing numbers of aging baby boomers will be significant, with a greater proportion of Medicare expendi- tures going to hospitals.5 One type of technological assistance to help elders live independently and avoid premature and/or prolonged hospitalization is a personal response sys- tem (PRS),3,6"8 a supportive device distributed widely in Western Europe and North America. On average, subscribers to PRSs are charged an installation fee of $25 to $30 (U.S. currency) and a monthly fee of $35 to $40. In 1995, the four million PRS users in the United States and Canada were identified as mostly female and elderly.9 According to Sherwood and Morris,10 the benefits of PRSs for elderly users have included reduced anxiety about living alone and increased ability to Uve independently. PRSs can help elders get immedi- ate assistance when a serious home-based accident or injury occurs, whereas delayed attention may result in an emergency room (ER) visit, hospital admis- sion, prolonged hospital stay, premature institutionalization, or death.3,8 Despite these well-established benefits, the cost of PRSs put them out of reach of most low-income elders, although this may be changing in some mea- sure. Occasionally, private insurance companies pay for PRSs on a case-by- case basis,10 and in some cases, Area Agencies on Aging have made funds available for hospitals to purchase the equipment for indigent patients. Recent reviews of support for formal third-party coverage of PRSs suggest a growing trend to increase the inclusion of secondary services in the homes of frail adults, particularly the elderly. Michigan, like many states, has stepped up its efforts to encourage the delivery of long-term care services in the home.11"15 The Michigan Waiver Pro- gram for the elderly and physically disabled is jointly administered by the Office of Services to the Aging (in the Department on Aging) and the Medicaid program.16,17 The most commonly delivered services under the waiver pro- gram are personal care, home-delivered meals, and PRSs. However, the rigor- ous screening process in Michigan prohibits or delays many indigent or near- indigent frail elders from qualifying for subsidized support for a PRS. In 1988, responding to the health care needs of adults in their communities, the American Red Cross initiated a Lifeline emergency response service in five chapters across the country, including the Southeastern Michigan Chapter. Lifeline is the trade name of a personal response system invented in 1974 by Boston gerontologist Andrew Dibner. Lifeline served approximately four mil- lion users in the United States and Canada in 1992.u"13 In 1994, responding to high demand and limited third-party coverage, the American Red Cross developed the Low-Income Lifeline Program to target 492 Impact of a Personal Response System elderly subscribers who are both poor and frail to help them maintain an inde- pendent lifestyle at home.18 The chapter established collaborative relation- ships and sponsorships with a number of churches, municipalities, health care organizations, civic groups, and other nonprofit agencies willing to cover all or some of the costs for needy clients. Other sources of funding included grants and private donations. Prior to establishing outside funding, the chap- ter was only able to provide 29 subsidized units, a number that increased greatly after outside funding was secured.19 Each PRS subscriber has a Lifeline home communicator connected to his or her telephone and a personal waterproof help button to wear as a bracelet or neck chain. When the button is pressed, the communicator sends a help- needed signal to the 24-hour monitoring center. Upon receiving this message, a trained staff member uses the communicator box in an effort to speak to the subscriber to find out what kind of assistance is needed. If the subscriber indi- cates that he or she needs help or is unable to respond, the staff member con- tacts the subscriber's designated responder (usually a relative or neighbor who can come to his or her aid quickly). If the responder is not available, the local police or fire department is called to provide assistance. The responder must depress a flashing yellow reset bar on the communicator to let the moni- toring center know that someone has come to the incapacitated person's aid. Numerous investigators of PRS technology report positive outcomes of its use, such as reductions in ER visits, reductions in the number of hospital admissions, and shortened average LOS. These findings are especially strong when PRS units have been placed in the homes of carefully screened individu- als.5,12,20"22 Koch20 found that PRS users experienced a 26 percent reduction in LOS. A 1985 replication of Koch's study conducted in four Boston hospitals showed that Lifeline technology brought about a 23.2 percent reduction in LOS and a 6.5 percent decrease in ER admissions.12,20 Cain's 1987 study reported that Lifeline participation reduced LOS by 69.3 percent.21 Studying the effectiveness of PRSs, Roush and colleagues achieved results similar to some of those of the present study.5,22 Analyses comparing hospital utilization before and after subscription to the PRS by 106 subjects in Canada (with a mean age of 78.6 years, 76.4 percent female) revealed no significant change in ER visits (0.58 vs. 0.72, ϕ = 0.4) but a significant drop in the mean number of days of hospitalization (14.37 vs. 5.85, ϕ = O.Ol).22 Roush and Teasdale later replicated the Canadian study in the United States among community- based PRS users. During the 1-year follow-up period, both American and Canadian subscribers using the system experienced a statistically significant (p = 0.05) decrease in LOS, with a mean reduction of 6.5 days. No significant change in the number of ER visits occurred.5 These impact studies were for the most part conducted on white, middle- class, or private pay subscribers, with none of the studies reviewed conducted on African American, low-income, or subsidized users of PRSs. African American elders tend to be in poorer health than white elders, and they and their caregivers tend to have fewer fiscal resources than their white McGadney-Douglass 493 counterparts,23"26 suggesting an increased need for PRSs, on one hand, and fewer resources to pay for it, on the other. Because these groups have their own needs and interests, programs and services often prove effective only when tailored to fit. ^23,27 Furthermore, given the growing number of urban elders who are poor but not Medicaid eligible, differences in hospital utilization rates among PRS users must be studied in a more purposeful way. Method For the present study, the sample consisted of everyone (n = 379) who had subscribed to the low-income PRS program of the Southeastern Michigan Chapter of the American Red Cross for at least one full year between 1994 and 1997. A comparison group was subdivided along racial lines to include Afri- can American (n = 313) and white (« = 66) elderly subsidized PRS users. To ensure that clients identified to receive the Lifeline technology were both low income and at risk for becoming incapacitated due to home-bound accidents or premature institutionalization, the American Red Cross collaborated with a number of agencies that work with the elderly to establish appropriate selec- tion criteria, resulting in the following list: age, health status, hospital use, social circumstances, ability to use the equipment, and financial status. All of the 379 people enrolled since the program was launched have (or had) incomes below, at, or minimally above the poverty level. The poverty line, defined by the 1995 Department of Health and Human Services Poverty Guidelines, is $7,470 for a single person and $10,030 for a couple. No client had income greater than the threshold for Medicaid eligibility. Selected clients were surveyed by American Red Cross staff and/or partner agency volunteers using a brief four-page quantitative questionnaire. Inter- views were conducted in the home and self-reported or reported by an infor- mal caregiver. During the initial visit, agency staff asked the client or the des- ignated informal caregiver a number of questions to complete the baseline assessment form. If the client was accepted into the program, a follow-up assessment was made every 6 months, usually by telephone. Questions were asked to compare the effectiveness of the technology by demographic group, health status, activities of daily living (ADL) stabilization patterns, and formal health care utilization patterns. The latter two measures were collected at baseline and 1 year after PRS installation. Demographic measures included race, age, gender, marital status, monthly income, and household expenses. Income included Social Security, Supple- mental Security Income (SSI), disability payments, pension, family support, and savings. Household composition, living situation, and geographical place of residence were also assessed. Multiple health problems were assessed by asking clients if they had been diagnosed with any of nine diseases or debilitating illnesses. These illnesses included cardiovascular disease (heart attack, stroke, hypertension, renal fail- ure), a severe crippling or disabling disease (e.g., arthritis, Parkinson's 494 Impact of a Personal Response System disease, multiple sclerosis), diabetes, severe pulmonary problems (e.g., asthma, emphysema), a physical handicap (e.g., paralysis, cerebral palsy), cancer, blindness or significant loss of sight, deafness or significant hearing loss, and obesity. ADL measurements to track clients' abilities to perform certain functions and to maintain an independent lifestyle were assessed by asking elders about local transportation, meal preparation, taking medications, bathing/ showering, dressing and undressing, and getting in and out of bed. Clients were asked, for example, if they could travel using buses, taxi, or their own car and selected one of three possible responses: (1) unable to travel without spe- cial arrangements (e.g., ambulance), (2) with some help (e.g., traveling with a companion), and (3) without help (traveling alone). Outcome measures included frequency of hospital admissions, total num- ber of days hospitalized, and total number of ER visits for 1 year prior to the installation of the PRS and for 1 year following installation of the PRS. Two- tailed i-tests for independent samples were employed to measure and com- pare between-group differences by race stratified by designated hospital utili- zation variables. Two-tailed i-tests for paired samples were employed to test for statistically significant changes within racial groups. Results Descriptive analyses revealed that, regardless of race, this group of sub- scribers was very homogeneous with respect to several demographic vari- ables (gender, age, income, and type of residence), health, and ADL stabiliza- tion patterns. Of the PRS users studied here, 82.6 percent were African American and 17.4 percent were white (see Table 1). As in other PRS studies, the majority were female (82.4 percent, π = 330), very old (more than 25 percent among the oldest old, ranging in age from 85 to 99 years), and widowed. Mari- tal status was statistically significant by race (p < 0.05), with more African Americans than whites being widowed. This finding is consistent with other studies showing premature deaths of African American men due to health problems associated with social, economic, and environmental conditions.23,26,28 There were no significant differences within the sample in monthly income, although African American users were more likely than white users to have less than $500 monthly income. There were significant differences between the African Americans and whites studied in monthly expenses, with the Afri- can Americans being more likely than the whites to spend less than $500 per month (57.7 percent vs. 40.9 percent, ϕ < 0.01). Overall monthly expenses were just slightly below the level of subscribers' monthly income, for all subscribers studied. Most of the PRS users lived alone in Detroit in single-family dwellings. In keeping with eldercare literature on extended-family makeup among African Americans,21,23,29"32 African Americans were significantly more likely than whites to have two or more persons living in the household ( ϕ < 0.01). In McGadney-Douglass 495 TABLEl DEMOGRAPHICS FOR LOW-INCOME PERSONAL RESPONSE SYSTEM SUBSCRIBERS (IN PERCENTAGES) BLACKS WHITES SIGNIFICANCE (n = 313) (n = 66) (t-TEST) Gender Male 13.1 86.9 Female 12.1 87.9 Age 60-64 5.2 3.2 65-69 11.5 11.3 70-74 14.1 19.4 75-79 21.0 16.1 80-84 22.6 22.6 85-99 25.6 27.4 Mean 78.2 78.3 Marital status 2.01* Married 8.0 9.1 Widowed 74.1 62.1 Separated/divorced 16.0 27.0 Never married 1.9 1.5 Household 1.45* Alone 83.1 89.4 Two or more 16.9 10.6 Residence -2.90* Detroit 91.3 66.7 Outside of city 8.7 33.3 Housing Single 48.9 50.0 Multiple 17.6 15.2 Apartment 9.3 10.6 Subsidized 24.3 24.2 Income (monthly) <$500 46.5 33.3 $501-$700 20.5 21.2 $701-$1,000 27.9 31.8 > $1,000 5.1 13.6 Expenses (monthly) -2.74* <$500 57.7 40.9 $501-$700 11.2 13.6 $701-$1,000 25.3 28.8 > $1,000 5.8 16.7 *p < 0.05. **p < 0.01. ***p < 0.001. keeping with the current racial makeup of most large U.S. cities and migration patterns to the suburbs, more than 91.3 percent of the African American PRS users lived in the city of Detroit compared with 66.7 percent of white users (p < 0.001).33 Approximately half of the subscribers served by the program lived in single-family houses, while one-quarter lived in subsidized "senior" housing. 496 Impact of a Personal Response System This reflects the fact that multiple smgle-family dwellings were built to show- case and meet the needs of a thriving and successful automobile industry in Detroit's heyday as "Motor City"; Detroit boasts a greater proportion of single- family homes than any other city in the country. Most of the clients receiving Lifeline services reported having multiple health problems (see Table 2). Consistent with other studies,34 heart disease was the most prevalent for both groups, with 80 percent reporting cardiovas- cular disease. More African American PRS users than white users reported that they had a crippling disease (p < 0.05), were diabetic (p < 0.05), or were blind (p < 0.001). In contrast, more whites than African Americans reported that they suffered from pulmonary illnesses (p < 0.01) and obesity (p < 0.01). There were no statistically significant differences between the races regarding cardiovascular disease, physical handicap, cancer, or deafness. The higher incidence of blindness among African American elders may be due to a higher rate of diabetes and possible delay in receiving treatment. The higher inci- dence of pulmonary disease among whites may be due to smoking. Findings from comparative studies indicate that African Americans are more likely to be in poorer health than whites.1,7,26,29,32 A comparison of elders' self-report of ADL at both baseline and a follow-up assessment taken 1 year after installation of the PRS indicates favorable ADL stabilization patterns for both African Americans and whites (see Table 3), findings compatible with other studies.7,24,35,36 Mean scores indicate that while these elders are frail, since installation of the service, there was no significant decline in functional status or disability or level of independence. The vast majority were able to complete ADLs (traveling, meal preparation, taking medications, bathing/showering, dressing/undressing, getting in/out of bed) with some help, indicating that most of these frail elders were able to maintain an independent lifestyle at home. These findings are consistent with recent studies of disability among the elderly showing that 1.2 million fewer elderly Americans were disabled in 1994 than had been projected,1,37 trends that may be associated with increased levels of exercise and improvements in medicine, rehabilitation, and public health, as well as to the use of PRSs. Within-group analyses of hospital use, including a pre- and a postassessment of the PRS, measured by admissions, mean number of annual ER visits, and LOS, revealed mixed results (see Table 4). Among African American users, ER visits stayed constant at 1.2 visits yearly, but among white users, there was a significant increase from 1 ER visit per year to 1.4 visits (p < 0.01). An increase in ER use is not consistent with most PRS studies.12,20 As expected, there were statistically significant declines in admissions and LOS for both groups: among African Americans, there was a 49 percent reduction in reported hospital admissions (p < 0.001) and 4.5 fewer days hospitalized (p < 0.001). Similarly, among whites, there was a 37 percent reduction in admis- sions (p < 0.001) and 3.6 fewer days hospitalized (p < 0.01). These declines are consistent with other PRS studies.5,12,20 McGadney-Douglass 497 TABLE 2 SELF-REPORTED MORBIDITY FOR LOW-INCOME PERSONAL RESPONSE SYSTEM SUBSCRIBERS (IN PERCENTAGES) BLACKS WHITES SIGNIFICANCE (τι = 313) (τι = 66) (t-TEST) Cardiovascular 80.8 80.3 ns Crippling diseases 44.4 31.8 -1.48» Diabetes 28.8 22.7 1.04* Pulmonary 20.4 30.3 -1.61** Physical handicap 17.3 21.2 ns Cancer 16.9 19.7 ns Blindness 14.4 6.1 2.28*** Deafness 11.2 15.2 ns Obesity 5.8 10.6 -1.20** *p < 0.05. **p < 0.01. ***p < 0.001. TABLE 3 ACTIVITIES OF DAILY LIVING (ADL): COMPARISON OF PRE- AND POST-PERSONAL RESPONSE SYSTEM INSTALLATION (MEAN) ONE YEAR BASELINE AFTER SIGNIFICANCE ADL ASSESSMENT INSTALLATION (t-TEST) Blacks (n = 313) Travel 1.89 1.90 ns Meals 1.89 1.94 ns Medications 2.29 2.14 ns Bath/shower 2.00 2.23 ns Dress/undress 2.22 2.13 ns Get in/out of bed 2.32 2.17 ns Whites (n = 66) Travel 1.89 1.93 ns Meals 1.95 1.97 ns Medications 2.33 2.19 ns Bath/shower 2.01 2.25 ns Dress/undress 2.30 2.17 ns Get in/out of bed 2.32 2.23 ns Note: Mean values: 1 = unable to do without special arrangements; 2 = can do with some help; and 3 = can do without help. Between-group differences exist on all hospital use variables measured 1 year after PRS installation (see Table 5). White users were twice as likely to make visits to the ER (p < 0.001), be admitted to the hospital (p < 0.001), and stay in the hospital longer (p < 0.001). 498 Impact of a Personal Response System TABLE 4 USE OF HOSPITAL SERVICE: WITHIN-GROUP PRE- AND POST-PERSONAL RESPONSE SYSTEM INSTALLATION COMPARISONS (MEAN) ONEYEAR ONEYEAR t-VALUEFOR BEFORE AFTER CHANGE INSTALLAnON INSTALLATION (t-TESTS)* Emergency room visits (η) Blacks 1.20 1.23 ns Whites 1.02 2.41 -3.06** Admissions (η) Blacks 0.72 0.23 14.35*** Whites 0.69 0.37 3.92*** Overnight stays (n) Blacks 6.02 1.24 8.70*** Whites 6.04 2.42 3.06** *p < 0.05. **p < 0.01. ***p < 0.001. TABLE 5 USE OF HOSPITAL SERVICE: BETWEEN-GROUP COMPARISONS (MEAN) ONE YEAR AFTER INSTAUATION EMERGENCY STAYS ROOM ADMISSIONS (NUMBER VISHS (τι) (YES) OFDAYS) Blacks 1.23 0.23 1.24 Whites 2.41 0.37 2.42 Significance: f-test -1.2* -0.13* -1.2* *p < 0.001. Discussion This study shows that the greatest benefits to subsidized PRS users was a reduction in hospital use—specifically, a reduction in admissions and in the number of inpatient days. Emergency room visits by African Americans, which averaged one per year, remained constant while those by whites signifi- cantly increased from one to almost two and a half annually. A variety factors may explain the increase in ER use by white elders, includ- ing race, gender, fear of asking for help, lack of social support, or lack of alter- natives to emergency rooms for urgent care for the poor in southeastern Mich- igan. It is not known how patients in this sample were transported to the ER McGadney-Douglass 499 (ambulance or private transport) or how they paid for their visits. White elders in the metropolitan Detroit PRS sample had somewhat more disposable income, and this may have contributed to their making more ER visits. Alter- natively, fear and isolation among some white elders may be associated with greater rates of ER use. Frail white elders, often widows, living alone in single- family homes may be part of a small minority of white residents in predomi- nantly African American neighborhoods.33 Some research suggests that ethnic and racial characteristics of neighborhood environments may influence the social ties of residents.38"40 For example, Thompson and Krause41 suggest that anticipated social support is lower among elders who live in deteriorated neighborhoods than among older adults who Uve in well-maintained neigh- borhoods, particularly among alder adults who live alone. Other research suggests that white elders may be less likely to identify a neighbor as a PRS respondent because they fear becoming victimized by crime or because they do not know any neighbor well enough to ask.42"44 The availability of family caregivers may be another key factor associated with increased number of visits to the ER. Specifically, white elders might have named as their respondent a family member who lives outside the city more frequently than African American elders did. Such a respondent is more likely to be delayed than someone who lives nearby and, furthermore, may be put off by urban conditions such as limited street parking, physical quality of structures, abandoned buildings, and fear of crime and, for one of these rea- sons, fail to respond promptly to calls for help from the elder, thus necessitat- ing a visit to the ER.44"47 While family and fictive kin (nonblood relatives such as neighbors) may have been able to attend to the needs of African American elders earlier than whites, another reason African American elders may have visited the ER less frequently is that a fear of not returning home caused African American elders and their families to avoid hospital visits whenever possible. Research by Gur- ley et al.18 has shown high rates of hospitalization with no return home among this population. Although the findings of this study are intriguing, several limitations sug- gest that they should be interpreted with caution. Limiting the study to a sin- gle location minimizes generalizability of these results to comparable popula- tions of urban, elderly PRS users. This may be particularly true because the location chosen was the Detroit metropolitan area, which has significant de facto racial segregation in housing and residence patterns. These concerns can be addressed by focusing future research on hospital use over time by a ran- domly selected matched sample of private pay and subsidized elders from a highly integrated urban community. Such a design might allow one to identify other sources of variation that might have predicted observed changes on the dependent variables (e.g., admissions, number of days hospitalized, ER vis- its). Other sources of variance that might have predicted changes in outcomes include such confounding variables as demographics (age, race, monthly income, and expenses), living arrangements, insurance status, health, frailty, 500 Impact of a Personal Response System social support (primary and/or secondary caregivers, distance from elder, home health care), and level of isolation based on a sociability leisure scale (lei- sure activities such as TV watching, reading, crafts, telephone use, attendance at religious services, outside visits, and shopping). The question to be answered is, "What contributes to differences in admissions, ER visits, and LOS for African American and white elderly users of PRSs?" The strength of the present study lies in the fact that the sample includes comparable groups of previously understudied, urban, low-income African American and white elderly PRS users. The African American and white sub- groups are almost equally matched on demographics, health, functional sta- tus, and hospital use at baseline. Also, the analyses consisted of intergroup and intragroup comparisons. Intragroup comparisons are particularly impor- tant because there is substantial diversity within racial groups. The heteroge- neity with regard to hospital use needs to be recognized and tested further. For both groups, although elders are frail, ADL measures indicate that there was no significant decline in functional status, indicating that these elders remained stable and independent at home after the installation of the PRS. While elders and their caregivers will simply celebrate this finding, formal health care providers and policy makers should take note of them as an indica- tion that a secondary intervention such as a PRS is often successful in helping to maintain the independence of elders at home. Economic constraint and denial of need are obstacles to PRS use. All elders are susceptible to becoming incapacitated in their homes, particularly the old- est old, who are more likely to have high rates of incapacitation, leading to pre- mature institutionalization or death.18 The rate of such incidents increases dra- matically with age. In 1996, people turning 65 could expect 12.2 additional years of full function and 5.3 years of dysfunction characterized by acute or chronic illness.1 Mittlemark and his colleagues reported that among elders with no ADL limitations, 34 percent of African Americans and 26 percent of whites reported having unmet needs for one or more formal community or home services.48 Thus, a comprehensive model for long-term care should con- sider the distribution of PRSs as an effective health promotion and primary prevention strategy for all elders. Personal response system use would be more widespread if it were subsi- dized. The current method of payment for long-term care services for all elders regardless of health status is abarrier to primary preventive, restorative care, and health maintenance. Publicly funded health care programs rarely pay for personal response systems. Medicare does not cover them at all, and the criteria for coverage under the Medicaid Waiver Program by some states are often extremely restricted,14 promoting tertiary intervention at a time when frail elders are most vulnerable for costly hospitalization, institutionalization, or death. Given the extraordinary cost of hospital and emergency care, it is extremely important that the use of PRSs is associated with elders' ability to live inde- pendently. Because Medicare is primarily an acute care system, it has not McGadney-Douglass 501 historically supported preventive geriatric care. Personal response systems are a long-term care service and should be part of any comprehensive long- term care effort. Until they are, third-party coverage under Medicaid is vital for elders living near, at, or below the poverty level. In conclusion, the growth and acceptance of PRSs are being fueled both by changes in the population and the need to reduce health care costs. Because home care is preferred by individuals, personal response systems can benefit elders by helping them maintain their sense of security and independence in the community.49 At the macro level, PRSs may contribute to reduced acute- care hospitalization and attendant costs.50 Acknowledgments The author wishes to acknowledge the support of her late colleague and friend Lucille H. Davis, PhD, RN, FAAN, who read earlier drafts of this manuscript; Fay Flowers, RN, Director, Department of Health and Community Outreach, Southeastern Michigan, Chapter of the Ameri- can Red Cross, 100 Mack Avenue, Detroit, MI; and Patricia Penyman, Lifeline Program Manager at the Southeastern Michigan Chapter of the American Red Cross. REFERENCES 1. 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