PHYSICAL ACTIVITY AND BEHAVIOR IN THE ELDERLY: A PILOT STUDY

Although exercise is usually promoted for weight loss and better heart health, there is growing evidence that regular physical activity helps people preserve their mental ability. We describe the results of a pilot longitudinal study addressing the impact of a moderate intensity exercise program on behavioral problems of frail, elderly, demented patients living in nursing home. Overall, patients in the treatment group (combination of aerobic/endurance activities, strength training, balance, and flexibility training) showed a statistically significant reduction in the behavioral problems, such as wandering, physical and verbal abuse, and in the sleep disorders. As a consequence, a significant reduction in the use of antipsychotic and hypnotic medications was observed in subjects of the treated group. In conclusion, our preliminary results suggest that engaging in regular physical activity,among other health benefits, may delay or prevent the onset of behavior problems in demented frail elderly people living in nursing home.

Antithrombotic drugs in secondary stroke prevention among a community dwelling older population

BACKGROUND

Patients who suffer a cerebrovascular event are at high risk of a recurrence. Secondary prevention is crucial in reducing the burden of cerebrovascular disease.

OBJECTIVE

To estimate the percentage of stroke survivors receiving antiplatelet or anticoagulant drugs and to identify factors associated with such treatment.

DESIGN

Cross sectional retrospective cohort study.

METHODS

Data were analysed from a large collaborative observational study, the Italian "silver network" home care project, which collected data (from 1997 to 2001) on patients admitted to home care programmes (n = 5372). Twenty two home health agencies participated in evaluating the implementation of the minimum dataset for home care (MDS-HC) instrument. For the present study, 648 individuals with a diagnosis of stroke were selected and the initial MDS-HC assessment reported.

RESULTS

70% of stroke survivors did not receive any antiplatelet or anticoagulant drugs (95% confidence interval (CI), 66.5 to 73.5). Among all age categories, aspirin and ticlopidine were the two most commonly prescribed drugs. Living alone (odds ratio (OR), 0.49 (95% CI, 0.24 to 0.89)), dependency in activities of daily living (0.66 (0.40 to 0.99)), cognitive impairment (0.58 (0.38 to 0.86)), and low educational level (0.58 (0.34 to 0.98)) were associated with a reduced likelihood of receiving secondary stroke prevention treatment. Cardiac arrhythmias, coronary artery disease, heart failure, and peripheral vascular disease were associated with the use of antiplatelet or anticoagulant treatment.

CONCLUSIONS

Negative attitudes among physicians with respect to secondary stroke prevention are prevalent and reinforce the need for increased awareness of existing data on the risks and benefits for elderly individuals. Social problems and functional impairment may be issues concerning physicians when deciding whether or not the risks of treatment exceed the benefit.

Dose-related impact of alcohol consumption on cognitive function in advanced age: results of a multicenter survey

BACKGROUND

Moderate alcohol consumption has been associated in several studies with decreased risk of cardiovascular and cerebrovascular events; however, available data on the effects of alcohol intake on cognitive functioning are conflicting. We assessed the association between alcohol consumption and cognitive impairment in a series of older subjects enrolled in a multicenter pharmacoepidemiology survey.

METHODS

The association between average alcoholic intake and cognitive performance was assessed in 15,807 patients admitted to participating centers during the survey periods. Demographic variables, comorbid conditions, medications, and objective tests that were associated with cognitive impairment (as indicated by a Hodkinson Abbreviated Mental Test score <7) in separate logistical regression models were examined as potential confounders in a summary model.

RESULTS

Cognitive impairment was detected in 1693 (19%) of 8755 drinkers and 2008 (29%) of 7052 nondrinkers (Fisher's exact test, p < 0.0001). After adjusting for potential confounders, alcohol consumption was associated with decreased probability of cognitive impairment (odds ratio, 0.75; 95% confidence interval, 0.66-0.85). The relationship between drinking level and cognitive dysfunction was nonlinear, because the probability of cognitive impairment was decreased for moderate alcohol use as compared with abstinence, but it was increased for daily consumption exceeding one wine-equivalent liter among men and 0.5 liter among women. This nonlinear association persisted when cerebrovascular and Alzheimer's disease were considered separately.

CONCLUSIONS

Alcohol abuse is associated with increased prevalence of cognitive dysfunction among older subjects; however, a daily alcohol consumption of less than 40 g for women and 80 g or less for men might be associated with a decreased probability of cognitive impairment. This possible protective effect of alcohol consumption should be further assessed by prospective studies.

Pain management in frail, community-living elderly patients

BACKGROUND

Pain is a common problem among older people living in different community settings. As indicated by the World Health Organization (WHO), pain can be relieved using pharmacologic agents. However, pain continues to be addressed inadequately.

OBJECTIVES

To describe the prevalence of pain in frail elderly people living in the community and to evaluate the adequacy of pain management.

METHODS

We analyzed data from a large collaborative observational study group, the Italian Silver Network Home Care project, that collected data on patients admitted to home health care programs. Twelve home health care agencies participated in the project evaluating the implementation of the Minimum Data Set for Home Care instrument. We enrolled 3046 patients, 65 years and older, in the present study. The main outcome measures were the prevalence of daily pain and analgesic treatment.

RESULTS

A total of 1341 individuals (39%, 49%, and 41% of those aged 65-74, 75-84, and > or = 85 years, respectively) reported daily pain. Of patients with daily pain, 25% received a WHO level 1 drug; 6%, a WHO level 2 drug; and 3%, a WHO level 3 drug (eg, morphine sulfate). Patients 85 years or older were less likely to receive analgesics compared with the younger patients (univariate odds ratio, 0.73; 95% confidence interval [CI], 0.60-0.89). Another independent predictor of failing to receive any analgesic was low cognitive performance (adjusted odds ratio, 0.80; 95% CI, 0.69-0.93).

CONCLUSIONS

Daily pain is prevalent among frail elderly patients living in the community and is often untreated, particularly among older and demented patients.

Impact of a new assessment system, the MDS-HC, on function and hospitalization of homebound older people: a controlled clinical trial

OBJECTIVES

To evaluate the impact of a new assessment system, the Minimum Data Set for Home Care (MDS-HC), on the functional status and hospitalization rates of frail, community-dwelling older people.

DESIGN

Single-blind randomized trial with 1-year follow-up.

SETTING

Bergamo, Italy.

PARTICIPANTS

All 187 subjects who were eligible for home care services delivered by two Health Districts between September 1998 and April 1999.

INTERVENTION

Random allocation to an intervention group undergoing MDS-HC assessment or to a control group receiving conventional geriatric assessment with Barthel, Lawton and Brody, and Mini-Mental State Examination (MMSE) scales.

MEASUREMENTS

Hospitalization, health services use and costs, and variations in functional status.

RESULTS

Survival analysis indicated that the intervention group was admitted to the hospital later and less often than were controls (relative risk = 0.49, 95% confidence interval = 0.56-0.97). Health services were used to the same extent, but intervention subjects used more in-home help services. Total costs for the intervention group were 21% lower than for the control group. The adjusted mean scores of the activities of daily living index (51.7+/-36.1 vs 46.3+/-33.7; P = .05) and MMSE (19.9+/-8.9 vs 19.2+/-10.7; P = .03) were significantly improved in the intervention group as compared with the control group.

CONCLUSIONS

The MDS-HC assessment instrument may provide a cost-saving approach to reducing institutionalization and functional decline in older people living in the community.

Treatment of osteoporosis among older adults discharged from hospital in Italy

OBJECTIVE

Osteoporosis and its complications represent one of the most important causes of morbidity and mortality among the elderly. Despite the availability of several drugs deemed effective at reducing the incidence of fractures, only a minority of patients receive pharmacological treatment. We studied patients with a diagnosis of osteoporosis at discharge from hospital in Italy to identify predictors of receiving specific pharmacological treatment and to analyse how the pattern of drug prescription has changed in the last decade.

METHODS

We analysed data from a multicentre pharmacoepidemiology study that collected data on hospitalised patients throughout Italy. Patients with a diagnosis of osteoporosis admitted during five different surveys in 1988, 1991, 1993, 1995 and 1997 were considered for the present study.

RESULTS

Of 863 patients with a diagnosis of osteoporosis, 461 (53.4%) received treatment. Age [odds ratio (OR) 0.86 for each decade of increment, 95% confidence interval (CI) 0.73, 0.99], male gender (OR 0.67, 95% CI 0.44, 0.99), number of comorbid conditions (4-5 vs. 0-3 conditions: OR 0.66, 95% CI 0.47, 0.91; 6 or more vs. 0-3 conditions: OR 0.47, 95% CI 0.31, 0.72) and number of medications (OR 0.92 for each drug increase, 95% CI 0.85, 0.99) were all associated with a reduced likelihood of receiving pharmacological treatment for osteoporosis. In contrast, concomitant corticosteroid use (OR 2.00, 95% CI 1.05, 3.80), admission for hip or vertebral fracture (OR 2.10, 95% Cl 1.12, 3.93) and year of survey (OR 1.11, 95% CI 1.01, 1.24) were independent predictors of a higher treatment rate. Among individual drugs, calcitonin use remarkably declined from 42.1% in 1988 to 0.8% in 1997 (P for trend <0.001), while bisphosphonate prescriptions increased from 1.3% in 1988 to 34.9% in 1997 (P for trend <0.001). Prescription of calcium did not change significantly throughout the decade examined, while vitamin D had a twofold increase (14.2% in 1988 to 26.2% in 1997, P for trend <0.001).

CONCLUSIONS

Among patients discharged from hospital in Italy, osteoporosis is an uncommon diagnosis. Even when the diagnosis is made, osteoporosis is often undertreated, and treatment is reserved for younger and less medically complex patients.

A new model of integrated home care for the elderly: impact on hospital use

The objective of the present study was to examine the effect of a home care program based on comprehensive geriatric assessment-Minimum Data Set for Home Care-and case management on hospital use/cost of frail elderly individuals. We determined all hospital admissions and days spent in hospital during the first year since the implementation of the home care program, and compared them to the rate of hospitalization that the same patients had experienced in the year preceding the implementation of such program. Following the implementation of this program, there was a significant reduction of the number of hospitalizations (pre 44% vs. post 26%, P < 0.001), associated with a reduction of hospital days, both at the individual patient level and for each admission. In conclusion, an integrated home care program based on the implementation of a comprehensive geriatric assessment instrument guided by a case manager has a significant impact on hospitalization and is cost-effective.

Functional status and clinical correlates in cognitively impaired community-living older people

We describe the prevalence of cognitive impairment in a population of community-living older people, its association with functional decline, and degree of comorbidity. In addition, we examined the relationship between different levels of cognitive impairment and mortality. We conducted an observational study of 1787 patients aged 65 years and above with any degree of cognitive impairment. Patient data were collected with the Minimum Data Set for Home Care. More than 50% of patients had some level of cognitive impairment, which correlates with the degree of physical frailty. On the contrary, patients with cognitive impairment appear to have fewer comorbid conditions and are less likely to receive medications than patients with normal cognitive status. In particular, hypertension, congestive heart failure, chronic obstructive pulmonary disease, cancer, diabetes mellitus, and osteoporosis are found more frequently among patients with normal mental status compared with those showing some level of cognitive defects. Yet, more severe cognitive impairment is associated with a higher mortality rate. Demented patients are characterized by a high prevalence of functional disability and by increased mortality. This increased morbidity and mortality rate is associated with a lower prevalence of comorbid clinical conditions and drug use, relative to patients with normal cognitive performance. The present findings support the possibility that severe cognitive impairment has an independent effect on survival.

Trends in antihypertensive drugs in the elderly: the decline of thiazides

The last decade has seen the publication of different editions of guidelines for the pharmacological treatment of hypertension that were based on the results of large, randomised trials. Since these guidelines were meant to inform practitioners, we analysed the pattern of prescription of antihypertensive agents between 1988 and 1997 among older hospitalised adults. Because of the wealth of data supporting the use of thiazides diuretics, we focused on diuretic prescription, to identify independent predictors of their utilisation. To this end, we used the GIFA database that includes patients admitted to academic medical centres throughout Italy between 1988 and 1997. We studied 5061 patients over 65 years of age selected among a population of 28 411, based on the diagnosis of arterial hypertension at discharge. The use of ACE-inhibitors has been raising steadily through the years, and they are the agents most commonly used since 1996. Calcium channel blockers showed a similar trend and were the top prescribing drug until 1995; afterwards, the documentation of potentially severe side effects has resulted in a nearly 20% reduction of their use. Beta-blockers have remained unpopular throughout the decade. Instead, the prescription of diuretics as a class showed a biphasic trend; an initial decrease with a prolonged steady state and a more recent raise. However, at a separate analysis, it was a evident that a progressive increase of the use of loop diuretics since 1988 has been paralleled by a nearly 50% reduction of thiazides prescriptions. Loop diuretics were more likely to be prescribed to older individuals, those with cardiac heart failure, coronary heart disease and high creatinine level. In contrast, independent predictors of thiazides use were female gender, good functional status, preserved renal function, and absence of cardiovascular comorbidity. In conclusion, despite continued recommendations to use thiazides diuretics for the treatment of hypertension among older individuals, their use has been declining steadily between 1988 and 1997. A possible explanation is that the choice to prescribe a thiazides diuretic is influenced by age, functional status and comorbidity.

Gender differences in predictors of mortality in nursing home residents with AD

OBJECTIVE

To evaluate whether the excess mortality in men with AD can be explained by a gender difference in the predictors of mortality.

METHODS

The authors studied 2,838 men and 6,385 women over 65 years of age with AD admitted, between 1992 and 1995, to 1 of nearly 1,500 nursing homes in five U.S. states (Kansas, Maine, Mississippi, New York, and South Dakota). Resident level data including sociodemographic characteristics, dementia severity, measures of physical disability, comorbidity, and other clinical variables were collected with the Minimum Data Set. Information on death was derived through linkage to Medicare enrollment files; the median follow-up was 23 months. Baseline characteristics were used to predict age at time of death in Cox proportional hazard models.

RESULTS

Men with AD had an increased risk of mortality relative to women, adjusted for differences in the distribution of age and race. The most important predictors of death in men were those related to the disease itself. These were the severity of dementia and the occurrence of episodes of delirium. Instead, death among women was associated with measures of disability, namely, impairment in performing the activities of daily living, presence of pressure sores, malnutrition, and comorbidity.

CONCLUSION

These data suggest that the underlying mechanisms for AD may be different in men and women. Future studies of survival and progression of AD need to examine men and women separately.

Physical restraint and subcutaneous hematoma in an anticoagulated patient

A large subcutaneous hematoma extending from the breastbone region to the left axillary region and left flank developed in a 86-year-old anticoagulated man because of repeated microtrauma from a physical restraint used to prevent his rising from a chair. Physicians, nurses, and physiotherapists should recognize that physical restraints causing pressure on the skin increase hemorrhagic risk in patients who take low molecular weight heparin. Accordingly, they should systematically check for hemorrhagic complications and attempt to limit the use of such devices.

Minimum data set for home care: a valid instrument to assess frail older people living in the community

BACKGROUND

Optimal care for frail elderly patients depends on comprehensive assessment. This is especially true in the complex setting of interdisciplinary home care programs. To facilitate comprehensive assessment, as well as to generate a useful, policy-relevant patient database, standardized, multidimensional, and validated instruments are very helpful.

OBJECTIVES

The aim of the present study was to demonstrate that the Minimum Data Set assessment instrument for Home Care (MDS-HC) can be used to detect functional and cognitive impairment as defined by analogous research instruments.

RESEARCH DESIGN

This was a cross-sectional correlation study.

SUBJECTS

We studied 95 patients admitted to home care services of the Health Care Agency of Bergamo (Italy).

MEASURES

The MDS-HC form was completed for all patients by well-trained nurses, independently of and with nurses blinded to the results from the research rating scales. The Barthel Activities of Daily Living (ADL) Index, the Instrumental Activities of Daily Living of Lawton (IADL), and the Mini Mental State Examination (MMSE) were considered the gold standard.

RESULTS

Agreement between the MDS-HC scales and the research rating scales was assessed with Pearson's correlation coefficient. This coefficient was 0.74 for MDS-ADL versus Barthel Index, 0.81 for MDS-IADL versus Lawton Index, and 0.81 for Cognitive Performance Scale versus MMSE, indicating an excellent agreement.

CONCLUSIONS

The MDS-HC scales, when performed by trained nurses using recommended protocols, provide a valid measure of function and cognitive status in frail home care patients. These findings point out the overall validity of the functional and clinical data contained in the MDS-HC assessment. Use of the MDS-HC gives the unique opportunity of setting up a database, a prerequisite for all epidemiological evidence-based medicine studies.

Isotope ratio mass spectrometry (IRMS) versus laser-assisted ratio analyzer (LARA): a comparative study using two doses of

This study was carried out to compare the measurements and the diagnostic accuracy of the traditional expensive IRMS and the new economical LARA system using two doses of [13C]urea + two different test meals in patients undergoing upper gastrointestinal endoscopy, both before and after anti-Helicobacter treatment. A total of 354 dyspeptic patients underwent endoscopy with gastric biopsies to diagnose H. pylori infection by CLO-test and histology. No patients had taken antibiotics, bismuth, or antisecretory drugs in the 4 weeks before testing. After overnight fasting, breath samples were collected simultaneously in both plastic and glass tubes at baseline and at 30 and 60 min after urea ingestion. In 237 patients 100 mg [13C]urea + Ensure and in 117 patients 75 mg [13C]urea + citric acid were given. The test was also performed with the two urea dosages and meals in 67 and 64 infected patients, respectively, four weeks after anti-Helicobacter therapy. H. pylori was considered eradicated when both biopsy-based tests were negative. A delta value >5 per thousand was considered positive. Breath samples with insufficient CO2 levels at both 30 and 60 min were excluded from final analysis (N = 37 in pre- and N = 8 in posttreatment). There was excellent agreement between overall delta values of the two machines with both [13C]urea 100 mg + Ensure and [13C]urea 75 mg + citric acid. The 95% CI of the difference against the mean was wider with the former (mean -1.3, +6.3, and -9.4) than with the latter urea dosage and test meal (mean -1.2, +5.2 and -8.1). LARA and IRMS were equally effective (P = NS) in distinguishing infected from uninfected patients before therapy using both doses of [13C]urea and test meals (sensitivity ranged from 95% to 99% and specificity from 95% to 97%). This good performance was maintained in the posttreatment phase (sensitivity ranged from 90% to 100% and specificity from 90% to 97%), without any statistical difference among the various combinations (P = NS). The LARA system is a valid alternative to IRMS in the diagnosis of H. pylori infection. Both machines provide highly reliable results after 30 min, so that the 60 min sample can be avoided. The dose of 75 mg + citric acid suffices to ensure an accurate UBT. The test performed with both devices and [13C]urea dosages is very effective also for posttherapy evaluation of H. pylori status.

Body mass index and mortality among hospitalized patients

BACKGROUND

Body mass index (weight in kilograms divided by the square of the height in meters [BMI]) is known to be associated with overall mortality. However, the effect of age on excess mortality from all causes associated with obesity is controversial. The aim of the present study is to determine the effect of age on the relationship between BMI and mortality.

METHODS

We analyzed data from a large collaborative observational study group, the Italian Group of Pharmacoepidemiology in the Elderly (GIFA), that collected data on hospitalized patients. A total of 18,316 patients consecutively admitted to 79 clinical centers during 5 different surveys in 1998, 1991, 1993, 1995, and 1997 were enrolled in the present study. The main outcome measure was the relative hazard ratio of death for different levels of BMI.

RESULTS

Mortality rate was lowest among men and women with BMIs from 25.0 through 27.4 kg/m(2) (relative risk, 0.24; 95% confidence interval, 0.15-0.38). The graphed relationship between BMI and mortality in younger patients was hyperbolic, with increased death rates at the lowest and highest BMI rankings. On the contrary, the older patients showed an increased death rate at the lowest BMIs with only a slight elevation at the highest BMIs (>35 kg/m(2)).

CONCLUSIONS

Our results suggest that BMI, a simple anthropometric measure of nutritional status, is an important predictor of mortality among young and old hospitalized patients. Even when controlling for clinical and functional variables, a low BMI remained a significant and independent predictor of shortened survival. Furthermore, the finding of the high BMI associated with minimum hazard in elderly subjects supports some past findings and opposes others and, if confirmed, has important implications for geriatric clinical guidelines.

Helicobacter pylori seroconversion in asymptomatic blood donors: a five-year follow-up

Several techniques have been developed to diagnose Helicobacter pylori infection and two noninvasive methods are available: carbon 13-urea breath test (UBT) and serology. Measurement of IgG serum antibodies by enzyme-linked immunosorbent assay (ELISA) is a reliable and inexpensive method for detection of infection. The aim of this study was to assess the seroconversion by different techniques after five to eight years. In 1990, 588 of 1,010 asymptomatic donors were found to be seronegative by ELISA, based on an H. pylori whole-cell suspension lysate (sensitivity and specificity: 92% and 97%). In 1995 serum samples from 418 of 588 seronegative donors were collected and retested using the same antigen. 411 of 418 samples were frankly negative, and 7 donors were found to be seroconverted. This group of seven sera represents the object of the study. They were retested by ELISA and western blotting using a different antigen (NCTC). To standardize our techniques, sera from 43 H. pylori positive and 47 H. pylori negative patients according to culture, histology, urease test, and UBT were used. The cutoff for ELISA-NCTC was 0.53 AI (absorbance index) (mean value + 2 SD), and for western blotting was negativity for CagA or <10 bands (sensitivity and specificity: 95% and 96%; 98% and 81% for ELISA and western blotting respectively). According to the results obtained in 1990 and 1995, seven donors were found to be seroconverted by ELISA using sonicated antigen; in five the seroconversion was confirmed by ELISA using NCTC antigen and in two there was concordance with WB. Four of the seven donors were contacted and asked to undergo UBT and a further serum sample was drawn to be reassessed in 1998. A seroconversion was found in all four donors by ELISA, while WB and UBT confirmed the seroconversion in only three of four donors. In conclusion the in-house ELISA used performed well compared to other theoretically better serologic assays and confirmed the low seroconversion rate for H. pylori infection in adult populations living in developed countries.

A brief training program on resident assessment instrument improves motivation of nursing home staff

The Resident Assessment Instrument (RAI) has been designed to improve the quality of assessment and care in nursing home patients through a better understanding of resident needs. We organized three short courses (two weeks) on RAI, involving sixty-six nursing home health professionals. The course provided students both a theoretical and practical knowledge of RAI. At the end of the program, participants were asked to answer to an anonymous questionnaire about the course itself and their future professional motivation. The participants showed increased motivation and attitudes toward the elderly care. The good results obtained indicates that RAI not only may improve quality of nursing home care, but it is also an useful tool in the training of geriatric professionals enhancing their motivation and job satisfaction.

Oxidative and nonoxidative benzodiazepines and the risk of femur fracture. The Systematic Assessment of Geriatric Drug Use Via Epidemiology Study Group

Benzodiazepine use is a well-identified risk factor for falls and the resulting femur fractures in elderly adults. Benzodiazepines not requiring hepatic biotransformation may be safer than agents undergoing oxidation because oxidative activity has been shown to decline with age. The association between the use of either oxidative or nonoxidative benzodiazepines and the risk of femur fracture among elderly adults living in nursing homes was studied. A nested case-control study was conducted using the Systematic Assessment of Geriatric drug use via Epidemiology (SAGE) database; the records of 9,752 patients hospitalized for incident femur fracture during the period 1992 to 1996 were extracted, matching by age, gender, state, and index date to the records of 38,564 control patients. Conditional logistic regression models were conducted to estimate the odds ratios (ORs) for femur fracture with adjustment for potential confounders. The adjusted OR for the overall use of benzodiazepines was 1.10 (95% confidence interval [CI], 0.98-1.20); the risk seemed of only slightly greater magnitude for exposure to nonoxidative agents (1.18; 95% CI, 1.03-1.36) than to oxidative benzodiazepines (1.08; 95% CI, 0.95-1.23). Among the latter, the effect was mainly accounted for by the use of agents with a long elimination half-life. A dose relationship was observed exclusively among users of long half-life oxidative benzodiazepines. The risk associated with the use of nonoxidative benzodiazepines showed no relationship to the age of the patients. In contrast, patients aged 85 years or older receiving oxidative benzodiazepines at high dosages or as needed had a two- to three-fold increased risk of femur fracture than did patients in the younger age group. Among older individuals, the use of benzodiazepines slightly increased the risk of femur fracture, mainly irrespective of the metabolic fate of the drug. Our results suggest that the use of nonoxidative benzodiazepines does not carry a lower risk for femur fracture than does the use of oxidative benzodiazepines. However, the latter agents may be associated with a somewhat higher risk of side effects among the oldest old, especially at higher dosages.

Impact of integrated home care services on hospital use

OBJECTIVE

To examine the effect of a home care program based on comprehensive geriatric assessment and case management on hospital use and costs among frail older individuals.

DESIGN

Quasi-experimental study with a 6-month follow-up.

SETTING

Vittorio Veneto, a town in northern Italy.

PARTICIPANTS

One hundred fifteen frail older people who applied for integrated home care services.

INTERVENTION

Each patient was assessed with the Minimum Data Set for Home Care, and, subsequently, a case manager and a multidisciplinary team delivered social and health care services as indicated.

MAIN OUTCOME MEASURES

We determined the hospital admissions and days spent in the hospital for all subjects during the first 6 months after the implementation of the home care program and compared them with the rate of hospitalization that the same patients had experienced in the 6 months preceding the implementation of the program.

RESULTS

After the implementation of the integrated home care program, there was a significant reduction in the number of hospitalizations compared with pre-implementation (56% vs 46%, respectively; P < .001), associated with a reduction in the number of hospital days, both at the individual patient level (28+/-23 days vs 18+/-15 days, respectively; P < .01) and for each admission (16+/-12 days vs 12+/-8 days, respectively; P < .01). This resulted in a 29% cost reduction with an estimated savings of $1260 per patient.

CONCLUSIONS

The implementation of an integrated home care program based on the use of a comprehensive geriatric assessment instrument guided by a case manager has a significant impact on hospitalization and is cost-effective.

Body mass index and mortality among older people living in the community

OBJECTIVES

To determine if body mass index (BMI = weight/height2), predictive of mortality in seriously ill hospitalized and institutionalized patients, is also predictive of mortality in a longitudinal epidemiologic study.

DESIGN

A prospective cohort study.

SETTING

Rovereto, a town in northern Italy.

PARTICIPANTS

A consecutive sample of 214 patients aged 81.2 +/- 7.3 years receiving community care services.

MAIN OUTCOME MEASURES

Malnutrition and mortality.

RESULTS

According to logistic regression analysis, malnutrition status, expressed by a BMI < 22 Kg/m2, was correlated with dependency in Activity of Daily Living (odds ratio 1.21; 95% confidence interval (CI) 1.01-1.45). Only a low BMI was associated with 1-year survival in Cox regression analysis, after adjusting for potential confounders (relative risk 0.85; 95%CI, 0.74-0.97). A high BMI (>27 Kg/m2) was not significantly related to risk of mortality.

CONCLUSIONS

Nutrition variables are a cardinal component of comprehensive geriatric assessment. Our results suggest that BMI, a simple anthropometric measure of nutritional status, is an important predictor of mortality among older people living in the community. Even when controlling for clinical and functional variables, a low BMI remained a significant and independent predictor of shortened survival.

Gender differences in the relation between comorbidity and mortality of patients with Alzheimer's disease. Systematic Assessment of Geriatric drug use via Epidemiology (SAGE) Study Group

OBJECTIVE

To investigate whether differences in the number and type of comorbid conditions may help explain the gender gap in mortality among patients with AD.

BACKGROUND

The prevalence and incidence of AD are higher among women, who also have more severe cognitive impairment and accelerated decline. However, men have an exceedingly higher mortality.

METHODS

The authors conducted a retrospective cohort study on 5,831 men and 17,918 women with a diagnosis of AD. Data were from the Systematic Assessment of Geriatric drug use via Epidemiology (SAGE) database, which includes information on residents of 1,492 nursing homes in five US states (1992-1995). Men and women were compared with respect to demographic characteristics, dementia severity, psychiatric and behavioral symptoms, indicators of physical disability, and general health status. Also compared were age- and race-adjusted prevalence of all comorbid conditions at each level of cognitive impairment. In survival analyses, the risk of death and of hospitalization were determined by gender and level of cognitive impairment. Finally, gender-related differences in the intensity of pharmacologic treatment were examined.

RESULTS

Women were older than men (83+/-7 versus 81+/-7 years) and were more likely to exhibit severe cognitive deterioration (27% versus 19% among men). Overall, there were no significant gender-related differences on several measures of physical disability (activities of daily living performance, gait and history of falls, incontinence, pressure sores), but significantly more women were underweight (45% versus 37% among men). However, the age- and race-adjusted 1-year mortality rate was 17% for women and 31% for men. The mortality rate of women at the highest degree of dementia severity was lower than the rate for men with minimal cognitive impairment. At any level of cognitive impairment, the prevalence of arrhythmia, chronic obstructive pulmonary disease, PD, and cancer was higher among men. Women were also less likely to be hospitalized, and they received fewer medications for each given disease.

CONCLUSIONS

The survival advantage of women with AD relative to men may occur as a result of fewer comorbid clinical conditions associated with the diagnosis of dementia.

A model for integrated home care of frail older patients: the Silver Network project. SILVERNET-HC Study Group

Home care programs for the treatment of frail elderly have been developed in many countries around the world. In the Silver Network project all services are provided in an integrated fashion by one "single entry" center, differently from the traditional fee-for-service or not integrated systems. The delivery of health and social services for frail elderly individuals are integrated and coordinated by a case manager who uses a "second generation" assessment instrument, the Minimum Data Set for Home Care (MDS-HC). We describe the principal clinical and functional characteristics of nearly 1300 patients admitted between 1997 and 1998 to such an integrated home care program in eleven Italian Health Agencies. The database, derived from the serial MDS-HC assessments of each patient, provides a unique opportunity to delineate the different criteria for eligibility for home care, and compare the selected populations of the participating Health Agencies.

Effect of topical application of nerve-growth factor on pressure ulcers

Pressure ulcer is a frequent problem in frail older people, with serious consequences and high costs. Topical application of nerve growth factor promotes skin ulcer healing.

Predictors of mortality in patients with Alzheimer's disease living in nursing homes

OBJECTIVES

To identify factors associated with mortality in patients with Alzheimer's disease, and to evaluate whether these factors vary according to severity of cognitive impairment.

METHODS

Data were from the SAGE database which includes information on all residents admitted between 1992 and 1995 to all Medicare/ Medicaid certified nursing homes of five US states. We conducted a longitudinal follow up study (median 23 months) on 9264 patients aged 65 years and above with a diagnosis of Alzheimer's disease. Patient data including demographic characteristics, dementia severity, comorbidity, and other clinical and treatment variables were collected with the Minimum Data Set. Information on death was derived through linkage to Medicare files. Baseline characteristics were used to predict survival in univariate and multivariate Cox proportional hazard models.

RESULTS

Overall mortality rate was 50%, with a first year rate of 25.7%. Increased age (risk ratio (RR) 1. 83; 95% confidence interval (95% CI) 1.65-2.03, for patients 85+ years), male sex (RR 1.81; 95% CI 1.70-1.94), limitation in physical function (RR 1.45; 95% CI 1.27-1.66), a condition of malnutrition (RR 1.31; 95%CI 1.23-1.39), the presence of pressure ulcers (RR 1.24; 95% CI 1.13-1.36), a diagnosis of diabetes mellitus (RR 1.32; 95% CI 1.21-1.43), and of cardiovascular diseases (RR 1.22; 95% CI 1. 14-1.30) were independent predictors of death, regardless of the severity of baseline dementia. Sensory problems (hearing and vision) and urinary incontinence were associated with increased mortality only among patients with less severe dementia. The presence of disruptive behaviour, aphasia, and a diagnosis of Parkinson's disease were not related to survival. African-Americans and other minority groups were less likely to die relative to white people.

CONCLUSIONS

Age, sex, functional limitation, and malnutrition seem to be the strongest predictors of death for patients with Alzheimer's disease in nursing homes. Altogether, severity of dementia has no influence on survival, yet the predictive role of certain variables depends on the degree of impairment. Minority groups have a reduced risk of death relative to white people.

New immunological assays for the diagnosis of Helicobacter pylori infection

There are several types of immunological tests available for the diagnosis and management of Helicobacter pylori infection. Most commercially available serological kits use the enzyme linked immunosorbent assay (ELISA) test format. Originally the kits used crude antigen preparations although many of the newer kits use a more purified antigen preparation, with often increased specificity but lower sensitivity. Near patient test kits are based either on latex agglutination or immunochromatography. Generally they have low sensitivities compared with laboratory tests. Western blotting, ELISA, and recombinant immunoblot assays (RIBA) have also been developed into commercially available kits and can be used to indicate the presence of specific virulence markers. An antigen detection kit has been developed for the detection of Helicobacter pylori in faeces. Immunological reagents have also been combined with other diagnostic modalities to develop immunohistochemical stains and DNA immunoassays. Helicobacter pylori is now recognised as the cause of gastritis and most cases of peptic ulcer disease (PUD); its long term carriage increases the risk of gastric adenocarcinoma sixfold and it is designated as a class I carcinogen. H pylori has also been implicated as a cause of gastric mucosa associated lymphoid tissue lymphomas. Its relation to non-ulcer dyspepsia remains controversial. Additionally, long term carriage of the organism may be associated with short stature in young girls and, in the general population, as a possible risk factor for the development of vasospastic disorders and possibly skin immunopathology such as urticaria. With the recognition of H pylori as an important human pathogen, it has become one of the growing number of organisms to have its complete genome sequence mapped. Serology is an important method of determining colonisation status and can be used for diagnosis, as a screening procedure, or to follow the efficacy of eradication regimens. Most serological assays are in the ELISA format although some are based on the latex agglutination reaction. These latter are used principally as near patient assays. Most assays detect IgG in serum although some detect serum IgA. More recently developed assays detect IgA in saliva and the production of affinity purified antibodies has led to the development of an antigen detection assay for faecal specimens. Serological reagents have also been used in immunocytochemistry and to speed up the detection of amplified products of the polymerase chain reaction (PCR)-DNA immunoassays.

Is drug use by the elderly with cognitive impairment influenced by type of dementia?

Patterns of drug use among the elderly vary greatly depending on level of cognitive function, yet no systematic evaluation of drug use by type of dementia has been performed. We compared patterns of drug use among patients with Alzheimer's disease (AD) and vascular dementia (VaD) to examine their relation to cognitive impairment. We used a population-based data set with over 350,000 residents admitted between 1992 and 1995 to all Medicare-Medicaid-certified nursing homes in five states. After excluding patients with a history of mental disorders or retardation, we identified 23,073 patients age 65 years and over with a diagnosis of AD and 76,087 with VaD. We examined over 350 resident data items (demographic, diagnostic, clinical, treatment) collected with the federally mandated Minimum Data Set, drug data (brand name, dosage, route and frequency of administration for all drugs), and Medicare hospital claims. Cognitive status was measured with a 7-point cognitive performance scale. Estimates of drug use were adjusted for age, gender, race, and prevalence of respective disease. Patients with AD were younger and had more severe cognitive impairment than those with VaD. The latter had more comorbid clinical conditions (3.1 +/- 1.9 vs 2.3 +/- 1.7 for patients with AD) and received a greater number of total drugs (6.1 +/- 4.6 vs 5.3 +/- 4.3). Overall use of cardiovascular, anti-Parkinson, pulmonary, antineoplastic, and nutritional agents was less frequent among patients with AD than those with VaD. Results were consistent across different levels of cognitive impairment. Thus, patients with AD have fewer associated diseases and appear to be less intensively medically treated.

Helicobacter pylori and type 1 diabetes mellitus in children

BACKGROUND

Helicobacter pylori is a recognized gastroduodenal pathogen and H. pylori infection is one of the most common bacterial infections, usually acquired during childhood. However, diabetes mellitus is characterized by an increased susceptibility to infections.

METHODS

We compared the prevalence of H. pylori infection as well as cytotoxin-associated gene A-CagA-and vacuolating cytotoxin gene A-VacA-positivity in 103 children and adolescents with type 1 diabetes mellitus and in 236 nondiabetic children. We used a novel Recombinant ImmunoBlot Assay-Strip (RIBA SIA) with individual band for whole H. pylori lysate and recombinant CagA and VacA.

RESULTS

H. pylori-positive subjects, both diabetics and controls, were significantly older than negative subjects. In the whole group of diabetic patients the prevalence of each of the three reactivities was higher than in control subjects, reaching significance only for lysate. Only diabetic patients over 12 years of age, with a longer disease duration, had a higher prevalence of positive cases, although not significantly so.

CONCLUSIONS

In the first few years of disease, diabetic children do not differ from the nondiabetic population. Subsequently they show an H. pylori seroprevalence tendentially higher than that of controls of the same age. Therefore, H. pylori infection acquired in childhood and lasting several years, could be one of the causes of chronic atrophic gastritis, which is more frequent in longstanding diabetes mellitus.

Impact of the type and severity of dementia on hospitalization and survival of the elderly. The SAGE Study Group

We conducted a retrospective cohort study to examine whether patients with Alzheimer's disease (AD) or vascular dementia (VaD) differed in the number and type of associated comorbid conditions. In addition, we evaluated the impact of the severity of cognitive impairment on hospitalization and mortality of patients in each group. We studied 161,106 patients over age 65, with any degree of cognitive impairment, residing in any of 1,573 Medicare/Medicaid-certified nursing homes of 5 states of the USA between 1992 and 1995. Patients were assessed with the federally mandated Minimum Data Set (MDS). The MDS has been cross-linked to Medicare eligibility files and to the Medicare Provider Analysis and Review database. AD patients were younger, and more likely to be female and Caucasian than VaD patients. For comparable levels of cognitive impairment, AD patients appeared to have fewer comorbid conditions, including those that were not risk factors for VaD. In addition, patients with AD had decreased morbidity and mortality relative to patients with VaD. These findings support the hypothesis that AD patients are a healthier group of demented patients.

Helicobacter pylori infection and cytotoxic antigen associated gene "A" status in short children

BACKGROUND

Helicobacter pylori is now an accepted gastroduodenal pathogen and is being investigated for possible implications in nongastroenterological conditions such as growth impairment. Subjects infected by cytotoxic Cag-A positive strains seem more likely to develop serious gastroduodenal diseases but the possible role of Cag-A positive strains in non gastroenterological diseases has not been fully investigated.

OBJECTIVE

1) To evaluate the prevalence of Helicobacter pylori infection and Cag-A positivity in short children compared to auxologically normal children. All the subjects were without gastro-intestinal symptoms and were not obese or significantly underweight. 2) To verify the reliability of the ELISA assay for H. pylori.

SUBJECTS

H. pylori infection was assessed in 338 children, 182 auxologically normal and 156 short children, with and without deficiency in growth hormone, by the determination of specific IgG antibody. In 79 subjects (all seropositive and a random sample of seronegative children), 13C-urea breath test and cytotoxic Cag-A positive strains were examined.

RESULTS

The overall seroprevalence of H. pylori infection by IgG antibody was 18/156 (11.5%) and 13/182 (7.1%) in short and auxologically normal children respectively. The 13C-urea breath test was positive in 29 children: 17 (10.9%) short and 12 (6.6%) auxologically normal. Western blotting documented infection by cytotoxic Cag-A positive strains in 12/17 (70.6%) and 8/12 (66.6%) of short and auxologically normal children respectively. None of the differences between the two groups were significant.

CONCLUSIONS

1) We found a similar prevalence of H. pylori infection and Cag-A positivity in two large pediatric populations of short or auxologically normal children. Therefore: 1) Our data did not confirm a role of H. pylori infection in short stature in children. 2) We found a high reliability of ELISA assay for the detection of IgG antibodies compared to breath test.

Tacrine use in nursing homes: implications for prescribing new cholinesterase inhibitors. SAGE Study Group. Systematic Assessment of Geriatric Drug Use via Epidemiology

OBJECTIVE

To describe the use of tacrine in nursing home residents using data from a clinically based resident assessment instrument used by all US nursing homes.

METHODS

Data were from the Systematic Assessment of Geriatric Drug Use via Epidemiology (SAGE) database, a population-based data set with information on 329,520 patients admitted to all Medicare/Medicaid certified nursing homes in four US states (Maine, Mississippi, New York, and South Dakota) from 1992 through 1995. The SAGE database combines information from the Minimum Data Set (MDS) and the On-Line Survey and Certification Automated Record. We identified all residents receiving tacrine and up to five control residents per case matched on state, date of tacrine use, cognitive function, and dementia diagnosis.

RESULTS

A total of 1,640 (0.5%) nursing home residents received tacrine at least once. Only 38% of these residents had a diagnosis of AD documented on the MDS; regardless of dementia diagnosis, 25% had severe cognitive impairment, 35% were severely dependent in activities of daily living (ADL), and 17% had both severe cognitive and ADL impairment. Only 8% achieved a therapeutic dose of at least 120 mg/d. After adjusting for confounding variables, wandering and being physically abusive were the strongest predictors of tacrine use.

CONCLUSIONS

A minority of nursing home residents received tacrine. Of those who did, a significant proportion were unlikely to benefit from its use because of their level of cognitive and ADL impairment, or because low doses were used. As new medications become available for dementia, MDS data can be used by nursing homes to monitor the use of these therapies.

Characteristics of the SAGE database: a new resource for research on outcomes in long-term care. SAGE (Systematic Assessment of Geriatric drug use via Epidemiology) Study Group

BACKGROUND

Because there is a lack of databases specific to long-term care, standardized assessments of nursing home residents are seen as a potential new resource for studying an important but neglected population. We describe the design and principal population characteristics of the first integrated database combining detailed clinical information and administrative claims data.

METHODS

We studied nearly 300,000 residents admitted between 1992 and 1994 to all Medicare/Medicaid certified nursing homes of five U.S. states (Kansas, Maine, Mississippi, New York, and South Dakota). The database crosslinks: (a) Resident Data: over 350 items (demographic, diagnostic, clinical, and treatments) collected with the Minimum Data Set; (b) Drug Data: brand name, dosage route, and frequency of administration for all drugs consumed by each resident; (c) Medicare Data: eligibility and inpatient hospital claims; (d) Facilities Data: structural and staffing information on nursing homes; and (e) Country Data: information on population, health professions and facility data, and economic parameters.

RESULTS

Ninety-two percent of the residents were aged 65 years and older. Residents were predominantly white (85%) and female (72%). The average number of medical diagnoses was above three, and residents were receiving an average of six medications. Sixty-five percent of residents had at least one hospital claim following the initial assessment, most commonly related to cardiovascular diseases and metabolic disorders. Fifty-five percent of the facilities were for-profit and 33% were of small size. Quality indicators and staffing level varied significantly by state.

CONCLUSIONS

The SAGE (Systematic Assessment of Geriatric drug use via Epidemiology) database provides a unique resource to study the relation between treatments received and outcomes experienced, particularly functional and health services outcomes, that have not been possible before in very old, frail people.

Changes in nutritional status during the hospital stay: a predictor of long-term survival

The objectives of this prospective observational study were to assess whether: 1) midarm circumference (MAC), previously shown to predict in-hospital mortality, maintains its prognostic implication after discharge; 2) in-hospital changes in aspecific indicators of the health status are predictors of long-term survival. The study population consisted of 249 patients from the general community [mean age 80 +/- 7 (70-99) years], consecutively discharged from geriatric and medical wards of an acute care hospital. Changes in health status during hospitalization were recorded (dynamic or delta variables) and health-related variables were collected at discharge (discharge variables). The relationship of both sets of variables to survival over a 3-year period was assessed by Cox's proportional hazards regression analysis. The discriminatory efficacy of predictive models was estimated by the Hanley and McNeil method. Survival curves were drawn with the patients alternatively grouped according to the presence or absence of each of the predictive variables. Serum albumin < 3.5 g/dL (hazard rate = 0.57, 95% confidence limits = 0.33-0.96) and dependency in at least one ADL (h.r. = 0.87, c.l. = 0.79-0.98) were found to be associated with increased mortality, and delta MAC (h.r. = 1.03, c.l. = 1.01-1.05), i.e., there was a positive change or no change in MAC from admission to discharge, with increased survival. A slightly weaker predictive model was obtained using only discharge variables. However, Hanley and McNeil's analysis showed that both models were far from achieving the optimal discrimination of high from low risk subjects. Effects on survival of individual variables varied in magnitude and dependency on time. We concluded that measuring in-hospital changes in nutritional status might improve prediction of long-term survival. Attempts should be made to identify variables having the strongest prognostic implications, and to tailor dynamic assessment to the needs of selected categories of patients.

Prevalence, clinical correlates, and treatment of hypertension in elderly nursing home residents. SAGE (Systematic Assessment of Geriatric Drug Use via Epidemiology) Study Group

BACKGROUND

Hypertension is prevalent in the elderly, but an information gap remains regarding the old, frail, individuals with complex conditions living in long-term care.

OBJECTIVE

To analyze the patterns of antihypertensive drug therapy among elderly patients living in nursing homes to elucidate their conformity with consensus guidelines.

SUBJECTS AND METHODS

We used a long-term care database that merged sociodemographic, functional, clinical, and treatment information on nearly 300000 patients admitted to the facilities of 5 US states between 1992 and 1994.

RESULTS

Hypertension was diagnosed in 80206 patients (mean age, 82.7+/-7.8 years). The prevalence was higher among women and among blacks. About one fourth of patients had 6 or more comorbid conditions; 26%, 22%, and 29% had concomitant diagnoses of coronary heart disease, congestive heart failure, and cerebrovascular disease, respectively. Seventy percent of patients were treated pharmacologically. Calcium channel blockers were the most common agents (26%), followed by diuretics (25%), angiotensin-converting enzyme inhibitors (22%), and beta-blockers (8%). The relative use of these drugs changed according to the presence of other cardiovascular conditions. Adjusting for potential confounders, the relative odds of receiving antihypertensive therapy were significantly decreased for the oldest subjects (> or =85 years old: odds ratio, 0.85; 95% confidence interval, 0.81-0.89) and those with marked impairment of physical (odds ratio, 0.77; 95% confidence interval, 0.73-0.81) and cognitive (odds ratio, 0.67; 95% confidence interval, 0.64-0.70) function.

CONCLUSIONS

Among very old, frail hypertensive patients living in nursing homes, the pattern of treatment seems not to follow recommended guidelines; age, functional status, and comorbidity appear to be important determinants of treatment choice.

Comorbidity and drug use in cognitively impaired elderly living in long-term care

Cognitive impairment is associated with an increased mortality in older people. The prevalence and impact of comorbidity on functional status and mortality of demented patients has not been fully elucidated. Using a population-based data set, we describe the prevalence of cognitive impairment, functional status, principal comorbid conditions and 1-year survival for over 300,000 patients admitted to the nursing homes in five US states. Sixty-one percent of patients have some level of cognitive impairment, and this correlates with the degree of physical frailty. Severer cognitive impairment is associated with a higher mortality rate. Yet, patients with cognitive impairment appear to have fewer comorbid conditions and are less likely to receive medications and special treatments than residents with normal cognitive status. Additional studies are needed to understand whether demented patients may paradoxically be considered healthier or, instead, are only neglected.

Routes of transmission of Helicobacter pylori infection

Helicobacter pylori is an important gastroduodenal pathogen, which has been recognized as a Class I carcinogen factor for gastric cancer and gastric mucosa associated lymphoid tissue lymphomas. In spite of the world-wide spread of the infection, the route of transmission is still not known. We reviewed data from several sero-epidemiological studies and aimed to identify potential sources of Helicobacter pylori infection. Available evidence strongly suggests an inverse correlation between socio-economic status and prevalence of Helicobacter pylori. The infection is acquired mostly during childhood in the third world, but is rare in children in developed countries, where the prevalence of Helicobacter pylori increases with age. Following the detection of the bacterium in saliva, faeces, and gastric juice, oral-oral or faecal-oral transmission and iatrogenic spread, through the use of unsterile endoscopes, have been proposed as possible routes of infection. Helicobacter pylori has also been found in some domestic cats, but at present, the risk of infection from these animals appears slight. The mode of transmission of Helicobacter pylori, as is yet, not known. Available information support the hypothesis of spread through close personal contact, considering humans as the only significant reservoir of infection.

Blood tests in the management of Helicobacter pylori infection. Italian Helicobacter pylori Study Group

There are three main types of blood test available for the management of Helicobacter pylori infection: those that detect an antibody response; tests of the pathophysiological state of the stomach; and those that indicate an active infection. Enzyme linked immunosorbent assay (ELISA) based kits are the most numerous of the commercially available tests. Originally the kits used crude antigen preparations but many of the newer kits use a more purified antigen preparation giving increased specificity but a lower sensitivity. The sensitivity, specificity, and predictive values of the tests can also be affected by the population under test and coexistent disease in the patients. Near patient test kits are based on either latex agglutination or immunochromatography. Generally, they have low sensitivities compared with laboratory tests. Commercial western blotting kits have also been developed and are used to detect the presence of specific virulence markers. The exact role of serology in the management of Helicobacter infection has still to be defined, although there is evidence that, used as a screening procedure, it can reduce endoscopy cost and workload. Gastrin and pepsinogen blood concentrations may provide valuable information on the pathophysiological state of the stomach--for example, the presence of inflammation or gastric atrophy. A combination of serology and serum concentrations of gastrin and pepsinogen may be used effectively to detect serious gastroduodenal disease in patients.

Management of pain in elderly patients with cancer. SAGE Study Group. Systematic Assessment of Geriatric Drug Use via Epidemiology

CONTEXT

Cancer pain can be relieved with pharmacological agents as indicated by the World Health Organization (WHO). All too frequently pain management is reported to be poor.

OBJECTIVE

To evaluate the adequacy of pain management in elderly and minority cancer patients admitted to nursing homes.

DESIGN

Retrospective, cross-sectional study.

SETTING

A total of 1492 Medicare-certified and/or Medicaid-certified nursing homes in 5 states participating in the Health Care Financing Administration's demonstration project, which evaluated the implementation of the Resident Assessment Instrument and its Minimum Data Set.

STUDY POPULATION

A group of 13 625 cancer patients aged 65 years and older discharged from the hospital to any of the facilities from 1992 to 1995. Data were from the multilinked Systematic Assessment of Geriatric Drug Use via Epidemiology (SAGE) database.

MAIN OUTCOME MEASURES

Prevalence and predictors of daily pain and of analgesic treatment. Pain assessment was based on patients' report and was completed by a multidisciplinary team of nursing home personnel that observed, over a 7-day period, whether each resident complained or showed evidence of pain daily.

RESULTS

A total of 4003 patients (24%, 29%, and 38% of those aged > or =85 years, 75 to 84 years, and 65 to 74 years, respectively) reported daily pain. Age, gender, race, marital status, physical function, depression, and cognitive status were all independently associated with the presence of pain. Of patients with daily pain, 16% received a WHO level 1 drug, 32% a WHO level 2 drug, and only 26% received morphine. Patients aged 85 years and older were less likely to receive morphine or other strong opiates [corrected] than those aged 65 to 74 years (13% vs 38%, respectively). More than a quarter of patients (26%) in daily pain did not receive any analgesic agent. Patients older than 85 years in daily pain were also more likely to receive no analgesia (odds ratio [OR], 1.40; 95% confidence interval [CI], 1.13-1.73). Other independent predictors of failing to receive any analgesic agent were minority race (OR, 1.63; 95% CI, 1.18-2.26 for African Americans), low cognitive performance (OR, 1.23; 95% CI, 1.05-1.44), and the number of other medications received (OR, 0.65; 95% CI, 0.5-0.84 for 11 or more medications).

CONCLUSIONS

Daily pain is prevalent among nursing home residents with cancer and is often untreated, particularly among older and minority patients.

Randomised trial of impact of model of integrated care and case management for older people living in the community

OBJECTIVE

To evaluate the impact of a programme of integrated social and medical care among frail elderly people living in the community.

DESIGN

Randomised study with 1 year follow up.

SETTING

Town in northern Italy (Rovereto).

SUBJECTS

200 older people already receiving conventional community care services.

INTERVENTION

Random allocation to an intervention group receiving integrated social and medical care and case management or to a control group receiving conventional care.

MAIN OUTCOME MEASURES

Admission to an institution, use and costs of health services, variations in functional status.

RESULTS

Survival analysis showed that admission to hospital or nursing home in the intervention group occurred later and was less common than in controls (hazard ratio 0.69; 95% confidence interval 0.53 to 0.91). Health services were used to the same extent, but control subjects received more frequent home visits by general practitioners. In the intervention group the estimated financial savings were in the order of 1125 ($1800) per year of follow up. The intervention group had improved physical function (activities of daily living score improved by 5.1% v 13.0% loss in controls; P<0.001). Decline of cognitive status (measured by the short portable mental status questionnaire) was also reduced (3.8% v 9.4%; P<0.05).

CONCLUSION

Integrated social and medical care with case management programmes may provide a cost effective approach to reduce admission to institutions and functional decline in older people living in the community.

Helicobacter pylori and diminished growth in children: is it simply a marker of deprivation?

Helicobacter pylori is an accepted gastroduodenal pathogen and has recently been investigated for possible implications in non gastroenterological diseases such as growth impairment coronary heart disease and diabetes. Infection by cytotoxic, i.e., CagA or VacA positive strains seems more likely to lead to more serious gastroduodenal diseases compared to infection by non cytotoxic strains, but the possible role of CagA or VacA positive strains in non gastroenterological diseases has not been investigated. Aim of the present study was to evaluate the prevalence of Helicobacter pylori infection as well as CagA and VacA positivity in three paediatric populations auxologically normal, hyposomic and diabetic children. Sera from a total of 522 children (auxologically normal: 246, hyposomic: 164, diabetic: 112) were analyzed by a novel Recombinant ImmunoBlot Assay-Strip Immunoblot Assay--RIBA SIA--which contain individual band for whole Helicobacter pylori lysate and recombinant CagA and VacA. The overall seroprevalence of reactivities against Helicobacter pylori lysate, CagA and VacA were: 7.3%, 9.3%, 6.9% vs 11.6%, 7.9%, 8.5% vs 14.3%, 13.4%, 8% (p = NS) in auxologically normal, hyposomic and diabetic children, respectively. Summarizing, we found a similar prevalence of reactivity against both whole Helicobacter pylori lysate as well as recombinant CagA and VacA between auxologically normal, hyposomic and diabetic children. Our data do not support a possible role of Helicobacter pylori in diminished growth in children.

Validity of diagnostic and drug data in standardized nursing home resident assessments: potential for geriatric pharmacoepidemiology. SAGE Study Group. Systematic Assessment of Geriatric drug use via Epidemiology

OBJECTIVES

The Health Care Financing Administration requires that patients admitted to certified nursing homes be assessed with the Minimum Data Set, a data collection instrument containing more than 300 demographic, diagnostic, clinical, and treatment variables. Long-term care databases potentially may be used to assess the outcomes of specific treatments as well as drug effectiveness. The authors sought to ascertain reliability and validity of diagnostic and drug data in a database obtained by merging the Minimum Data Set with detailed information on drugs consumed by each resident.

METHODS

A population of 296,379 residents of 1,492 nursing homes in Kansas, Maine, Mississippi, New York, and South Dakota participated in the study between 1992 and 1994. Minimum Data Set clinical diagnoses were contrasted with selected resident characteristics and a variety of symptoms and treatments. Limited to individuals who had been hospitalized in the 6 months preceding the first assessment, Minimum Data Set diagnoses were compared with those on the hospital discharge claims maintained in the Medicare Provider Analysis and Review database. Finally, the probability that the use of selected drugs predicted the correspondent gender-specific, age-specific, or unique labeled indication was estimated.

RESULTS

The positive predictive value for Minimum Data Set diagnoses compared with gender or function measures exceeded 0.9, and it was 0.8 for specific symptoms and 0.6 for virtually all other comparisons. The positive predictive value for Minimum Data Set diagnoses compared with those from hospital claims was approximately 0.7 for all chronic medical conditions, except for depression and asthma/chronic obstructive pulmonary disease/emphysema. The positive predictive value for acute/subacute diagnoses (ie, pneumonia, urinary tract infection, anemia) that may resolve during hospital stay was less than 0.5. The positive predictive value for selected drugs, except estrogens, compared with age and gender was close to 1.0 in all cases. When compared to their labeled indication, the positive predictive value was more than 0.6 for all drugs considered, with 0.97, 0.91, and 0.87 for tacrine and Alzheimer's disease, antidiabetics and diabetes mellitus, and L-dopa and Parkinson's disease, respectively.

CONCLUSIONS

These findings point to the overall validity of the drug and clinical data in this Minimum Data Set-based data set. Additional validation efforts will determine whether this data set can be used for studies of geriatric pharmacoepidemiology and for analyses of the influence of different policies and practices on residents' outcomes.

Neuropsychologic effects of carotid endarterectomy

This study assessed neuropsychologic changes after internal carotid endarterectomy using a design that limited the confounding effects of surgical and anesthesiological stress. Twenty-eight patients (mean age = 65.9 years, SD = 8.4, range 45-79), underwent extensive neuropsychological assessment before and on the seventh day after carotid endarterectomy for symptomatic carotid stenosis greater than 75%. A similarly assessed control group of 30 patients underwent elective orthopaedic surgery. A third cognitive assessment was performed 4 months postoperatively on a subgroup of the study patients. No significant cognitive change occurred in the control group. The study patients showed significant improvement in verbal memory, constructive abilities, verbal attainment, and visual attention; a trend towards further improvement of verbal functions was evident at the late postoperative assessment. No side-specific cognitive change was observed. In conclusion, carotid endarterectomy performed for currently accepted indications significantly improves several cognitive functions.