The effect among older persons of a general preventive visit on three health behaviors: smoking, excessive alcohol drinking, and sedentary lifestyle. The Medicare Preventive Services Research Team

Systematic Review and Meta-Analysis of Primary Care-Based Physical Activity Interventions Among Older Adults

The purpose of this research is to identify the effectiveness of primary care-based interventions designed to increase older adults' physical activity (PA). Primary care was defined as a patient's main source of health care. Standardized mean difference effect size (ES) was calculated related to changes in PA levels in adults' ≥65. Moderator analysis was performed to explore the relationship between participant characteristics, interventions, interventionists, and ES. Overall mean ES 0.27 (95% confidence interval [0.15, 0.39], p < .01) was calculated for 25 two-group comparisons involving 4,685 total participants with a mean age of 75.08. There was little evidence to support counseling over exercise referrals. The use of theory or a pedometer did not modify the ES. PA interventions delivered in primary care are effective and can be delivered by other health-care providers working with the primary provider. Many different behavior change strategies may be used to promote PA.

Interventions for reducing sedentary behaviour in community-dwelling older adults

BACKGROUND

Older adults are the most sedentary segment of society, often spending in excess of 8.5 hours a day sitting. Large amounts of time spent sedentary, defined as time spend sitting or in a reclining posture without spending energy, has been linked to an increased risk of chronic diseases, frailty, loss of function, disablement, social isolation, and premature death.

OBJECTIVES

To evaluate the effectiveness of interventions aimed at reducing sedentary behaviour amongst older adults living independently in the community compared to control conditions involving either no intervention or interventions that do not target sedentary behaviour.

SEARCH METHODS

We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, CINAHL, PsycINFO, PEDro, EPPI-Centre databases (Trials Register of Promoting Health Interventions (TRoPHI) and the Obesity and Sedentary behaviour Database), WHO ICTRP, and ClinicalTrials.gov up to 18 January 2021. We also screened the reference lists of included articles and contacted authors to identify additional studies.

SELECTION CRITERIA

We included randomised controlled trials (RCTs) and cluster-RCTs. We included interventions purposefully designed to reduce sedentary time in older adults (aged 60 or over) living independently in the community. We included studies if some of the participants had multiple comorbidities, but excluded interventions that recruited clinical populations specifically (e.g. stroke survivors).

DATA COLLECTION AND ANALYSIS

Two review authors independently screened titles and abstracts and full-text articles to determine study eligibility. Two review authors independently extracted data and assessed risk of bias. We contacted authors for additional data where required. Any disagreements in study screening or data extraction were settled by a third review author.

MAIN RESULTS

We included seven studies in the review, six RCTs and one cluster-RCT, with a total of 397 participants. The majority of participants were female (n = 284), white, and highly educated. All trials were conducted in high-income countries. All studies evaluated individually based behaviour change interventions using a combination of behaviour change techniques such as goal setting, education, and behaviour monitoring or feedback. Four of the seven studies also measured secondary outcomes. The main sources of bias were related to selection bias (N = 2), performance bias (N = 6), blinding of outcome assessment (N = 2), and incomplete outcome data (N = 2) and selective reporting (N=1). The overall risk of bias was judged as unclear. Primary outcomes The evidence suggests that interventions to change sedentary behaviour in community-dwelling older adults may reduce sedentary time (mean difference (MD) -44.91 min/day, 95% confidence interval (CI) -93.13 to 3.32; 397 participants; 7 studies; I² = 73%; low-certainty evidence). We could not pool evidence on the effect of interventions on breaks in sedentary behaviour or time spent in specific domains such as TV time, as data from only one study were available for these outcomes. Secondary outcomes We are uncertain whether interventions to reduce sedentary behaviour have any impact on the physical or mental health outcomes of community-dwelling older adults. We were able to pool change data for the following outcomes. • Physical function (MD 0.14 Short Physical Performance Battery (SPPB) score, 95% CI -0.38 to 0.66; higher score is favourable; 98 participants; 2 studies; I² = 26%; low-certainty evidence). • Waist circumference (MD 1.14 cm, 95% CI -1.64 to 3.93; 100 participants; 2 studies; I² = 0%; low-certainty evidence). • Fitness (MD -5.16 m in the 6-minute walk test, 95% CI -36.49 to 26.17; higher score is favourable; 80 participants; 2 studies; I² = 29%; low-certainty evidence). • Blood pressure: systolic (MD -3.91 mmHg, 95% CI -10.95 to 3.13; 138 participants; 3 studies; I² = 73%; very low-certainty evidence) and diastolic (MD -0.06 mmHg, 95% CI -5.72 to 5.60; 138 participants; 3 studies; I² = 97%; very low-certainty evidence). • Glucose blood levels (MD 2.20 mg/dL, 95% CI -6.46 to 10.86; 100 participants; 2 studies; I² = 0%; low-certainty evidence). No data were available on cognitive function, cost-effectiveness or adverse effects.

AUTHORS' CONCLUSIONS

It is not clear whether interventions to reduce sedentary behaviour are effective at reducing sedentary time in community-dwelling older adults. We are uncertain if these interventions have any impact on the physical or mental health of community-dwelling older adults. There were few studies, and the certainty of the evidence is very low to low, mainly due to inconsistency in findings and imprecision. Future studies should consider interventions aimed at modifying the environment, policy, and social and cultural norms. Future studies should also use device-based measures of sedentary time, recruit larger samples, and gather information about quality of life, cost-effectiveness, and adverse event data.

Promoting physical activity in primary care: a systematic review and meta-analysis

Background

Promoting physical activity is an important part of patient care in primary care and has been investigated in many studies with a wide range of intervention characteristics, often including external support. It is unclear, however, if promoting physical activity is effective.

Aim

To investigate the effectiveness of behaviour change interventions to promote physical activity in primary care.

Design and setting

This is a systematic review and meta-analysis to evaluate physical activity promotion in a primary care setting.

Method

EMBASE, MEDLINE, PsycInfo, and the Joanna Briggs Institute Database were searched for ‘physical activity’, ‘interview’, ‘motivation’, ‘primary care’, and equivalent words to identify randomised controlled trials with physical activity as the outcome at patient level.

Results

The review identified 25 eligible studies. The quality appraisal showed that most studies reported insufficient details regarding randomisation, group allocation, blinding, and fidelity of intervention delivery. The included studies reported a wide range of interventions with varying numbers of follow-up visits or phone calls. The overall effect size for interventions with a 6-month follow-up interval was 0.04 (95% confidence interval [CI] = −0.06 to 0.14), and for interventions with a 12-month follow-up interval it was 0.19 (95% CI = 0.03 to 0.36). Only one intervention based on three motivational interviewing sessions achieved a moderate effect.

Conclusion

Counselling to promote physical activity in primary care has a limited effect on patients’ behaviour and it might not, on its own, be enough to change physical activity behaviour.

More behavioral recommendations produce more change: A meta-analysis of efficacy of multibehavior recommendations to reduce nonmedical substance use

Death and morbidity associated with substance use have risen continuously over the last few decades, increasing the need for rigorous examination of promising programs. Interventions attempting to change multiple behaviors have been designed to address interconnected problems such as use of both alcohol and drugs. This meta-analysis aimed to examine the efficacy of multibehavior interventions to curb nonmedical substance use in relation to the theoretical relation among different substance use behaviors. Specifically, our synthesis aimed to estimate the optimal number of recommendations for intervention efficacy and evaluate the impact of different combinations of recommendations on intervention efficacy. A synthesis of multibehavior interventions addressing nonmedical substance use was conducted to measure behavioral changes between the pretest and the follow-up. These changes were then compared across different numbers of recommendations. Sixty-nine reports and 233 effect sizes (k of conditions = 155, n = 28,295) were included. A positive linear relation was found between the number of targeted behaviors and intervention efficacy, which was stronger for drug use than alcohol use. Furthermore, recommendations on drug use worked better when paired with recommendations targeting other behaviors, whereas recommendations on alcohol use worked more independently. Lastly, multibehavior interventions were especially efficacious when delivered by experts. Overall, our synthesis indicated that targeting multiple substances is beneficial for changing drug use outcomes, but less so for alcohol use outcomes. Therefore, in the current substance use epidemic, innovative multibehavior programs appear to hold promise, especially to combat nonmedical drug use. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Does Health Professional Counseling Impact the Quality-of-Life Levels of Older Adults Enrolled in Physical Activity Programs?

Background and objectives: There are studies showing that exercise counseled by health professionals can improve physical fitness. However, less is known about the effects of exercise counseling on quality of life. The aim of this study was to investigate health-related quality of life of older adults who received or did not receive physical exercise counseling by sport and exercise professionals or physicians. Materials and Methods: This was a cross-sectional study that investigated quality of life of older adults who did or did not receive exercise counseling from health professionals. Older adults who were physically active took part in this study: 45 participants performed exercise advised by sport and exercise professionals (SEPCG), 19 participants performed exercise advised by physicians (PCG), and 26 participants performed exercise without counseling (NCG). Participants answered the SF-36 to estimate quality of life. Results: Analysis revealed that responses on all SF-36 subscales were higher in those participants who received counseling by sport and exercise professionals (Functioning capacity, β = -26.283, p < 0.001 and β = -26.482, p < 0.001, Role limitations due to physical problems, β = -43.372, p < 0.001 and β = -45.177, p < 0.001, Pain, β = -17.634, p < 0.001 and β = -16.015, p < 0.001, General health perceptions, β = -38.008, p < 0.001 and β = -32.529, p < 0.001, Vitality, β = -18.573, p < 0.001 and β = -16.406, p = 0.001, Social functioning, β = -37.963, p < 0.001 and β = -29.224, p < 0.001, Role limitations due to emotional problems, β = -52.246, p < 0.001 and β = -40.173, p < 0.001, Mental health, β = -17.381, p < 0.001 and β = -12.121, p < 0.001, PCG and NCG respectively). Conclusions: The results showed that those older adults who were counseled by sport and exercise professionals presented better quality of life, possibly because these professionals counseled exercise based on current guidelines for exercise prescription.

Five-year survival rate among older adults participating in the national geriatric screening program: A South Korean population-based cohort study

INTRODUCTION

This study aimed to assess the health benefits of a geriatric screening program comprising of physical function tests, screening questionnaires for depression and cognitive impairment, and bone mineral density measurements for women as a part of the National Screening Program for Transitional Ages (NSPTA). We compared the all-cause mortality between subjects who did and did not participate in the screening program.

METHODS

This was a nationwide longitudinal study with a 5-year follow-up based on a 10% sample of the National Health Insurance beneficiaries aged 60 years and older. Mortality records were obtained from the qualification dataset in the elderly cohort database of 2005-2013 provided by the National Health Insurance Service. A Cox proportional hazards model was used to analyze the mortality risk. We sampled 11,986 subjects each in the screened (intervention) and non-screened (control) groups after exact matching using propensity score.

RESULTS

After adjusting for demographic and socioeconomic characteristics (age, sex, household income, smoking, alcohol drinking, physical activity, body mass index, and the Charlson Comorbidity Index), all-cause mortality rates were found to be significantly lower (a) in the intervention group compared to the control group (hazard ratio = 0.73; 95% confidence interval: 0.65, 0.82) and (b) among women compared to men (hazard ratio = 0.50; 95% confidence interval: 0.44, 0.56). Lower hazard ratios were also observed among those with a higher body mass index, fewer comorbidities, and higher income.

CONCLUSION

A nationwide geriatric screening program might be helpful in reducing the incidence of premature deaths among older people.

Exploring equity in primary-care-based physical activity interventions using PROGRESS-Plus: a systematic review and evidence synthesis

BACKGROUND

Little is known about equity effects in primary care based physical activity interventions. This review explored whether differences in intervention effects are evident across indicators of social disadvantage, specified under the acronym PROGRESS-Plus (place of residence, race/ethnicity, occupation, gender, religion, education, social capital, socioeconomic status, plus age, disability and sexual orientation).

METHODS

Six bibliographic databases were systematically searched for randomised controlled trials (RCTs) of physical activity interventions conducted in primary care. Harvest plots were used to synthesize findings from RCTs reporting subgroup or interaction analyses examining differences in intervention effects across levels of at least one PROGRESS-Plus factor.

RESULTS

The search yielded 9052 articles, from which 173 eligible RCTs were identified. Despite PROGRESS-Plus factors being commonly measured (N = 171 RCTs), differential effect analyses were infrequently reported (N = 24 RCTs). Where reported, results of equity analyses suggest no differences in effect across levels or categories of place of residence (N = 1RCT), race (N = 4 RCTs), education (N = 3 RCTs), socioeconomic status (N = 3 RCTs), age (N = 16 RCTs) or disability (N = 2 RCTs). Mixed findings were observed for gender (N = 22 RCTs), with some interventions showing greater effect in men than women and others vice versa. Three RCTs examined indicators of social capital, with larger post-intervention differences in physical activity levels between trial arms found in those with higher baseline social support for exercise in one trial only. No RCTs examined differential effects by participant occupation, religion or sexual orientation.

CONCLUSION

The majority of RCTs of physical activity interventions in primary care record sufficient information on PROGRESS-Plus factors to allow differential effects to be studied. However, very few actually report details of relevant analyses to determine which population subgroups may stand to benefit or be further disadvantaged by intervention efforts.

Citation searching: a systematic review case study of multiple risk behaviour interventions

BACKGROUND

The value of citation searches as part of the systematic review process is currently unknown. While the major guides to conducting systematic reviews state that citation searching should be carried out in addition to searching bibliographic databases there are still few studies in the literature that support this view. Rather than using a predefined search strategy to retrieve studies, citation searching uses known relevant papers to identify further papers.

METHODS

We describe a case study about the effectiveness of using the citation sources Google Scholar, Scopus, Web of Science and OVIDSP MEDLINE to identify records for inclusion in a systematic review.We used the 40 included studies identified by traditional database searches from one systematic review of interventions for multiple risk behaviours. We searched for each of the included studies in the four citation sources to retrieve the details of all papers that have cited these studies.We carried out two analyses; the first was to examine the overlap between the four citation sources to identify which citation tool was the most useful; the second was to investigate whether the citation searches identified any relevant records in addition to those retrieved by the original database searches.

RESULTS

The highest number of citations was retrieved from Google Scholar (1680), followed by Scopus (1173), then Web of Science (1095) and lastly OVIDSP (213). To retrieve all the records identified by the citation tracking searching all four resources was required. Google Scholar identified the highest number of unique citations.The citation tracking identified 9 studies that met the review's inclusion criteria. Eight of these had already been identified by the traditional databases searches and identified in the screening process while the ninth was not available in any of the databases when the original searches were carried out. It would, however, have been identified by two of the database search strategies if searches had been carried out later.

CONCLUSIONS

Based on the results from this investigation, citation searching as a supplementary search method for systematic reviews may not be the best use of valuable time and resources. It would be useful to verify these findings in other reviews.

Communication-related behavior change techniques used in face-to-face lifestyle interventions in primary care: a systematic review of the literature

OBJECTIVES

To systematically review the literature on the relative effectiveness of face-to-face communication-related behavior change techniques (BCTs) provided in primary care by either physicians or nurses to intervene on patients' lifestyle behavior.

METHODS

PubMed, EMBASE, PsychINFO, CINAHL and The Cochrane Library were searched for studies published before October 2010. Fifty studies were included and assessed on methodological quality.

RESULTS

Twenty-eight studies reported significantly favorable health outcomes following communication-related BCTs. In these studies, 'behavioral counseling' was most frequently used (15 times), followed by motivational interviewing (eight times), education and advice (both seven times). Physicians and nurses seem equally capable of providing face-to-face communication-related BCTs in primary care.

CONCLUSION

Behavioral counseling, motivational interviewing, education and advice all seem effective communication-related BCTs. However, BCTs were also found in less successful studies. Furthermore, based on existing literature, one primary care profession does not seem better equipped than the other to provide face-to-face communication-related BCTs.

PRACTICE IMPLICATIONS

There is evidence that behavioral counseling, motivational interviewing, education and advice can be used as effective communication-related BCTs by physicians and nurses. However, further research is needed to examine the underlying working mechanisms of communication-related BCTs, and whether they meet the requirements of patients and primary care providers.

General health checks in adults for reducing morbidity and mortality from disease

BACKGROUND

General health checks are common elements of health care in some countries. These aim to detect disease and risk factors for disease with the purpose of reducing morbidity and mortality. Most of the commonly used screening tests offered in general health checks have been incompletely studied. Also, screening leads to increased use of diagnostic and therapeutic interventions, which can be harmful as well as beneficial. It is, therefore, important to assess whether general health checks do more good than harm.

OBJECTIVES

We aimed to quantify the benefits and harms of general health checks with an emphasis on patient-relevant outcomes such as morbidity and mortality rather than on surrogate outcomes such as blood pressure and serum cholesterol levels.

SEARCH METHODS

We searched The Cochrane Library, the Cochrane Central Register of Controlled Trials (CENTRAL), the Cochrane Effective Practice and Organisation of Care (EPOC) Trials Register, MEDLINE, EMBASE, Healthstar, CINAHL, ClinicalTrials.gov and WHO International Clinical Trials Registry Platform (ICTRP) to July 2012. Two authors screened titles and abstracts, assessed papers for eligibility and read reference lists. One author used citation tracking (Web of Knowledge) and asked trialists about additional studies.

SELECTION CRITERIA

We included randomised trials comparing health checks with no health checks in adults unselected for disease or risk factors. We did not include geriatric trials. We defined health checks as screening general populations for more than one disease or risk factor in more than one organ system.

DATA COLLECTION AND ANALYSIS

Two authors independently extracted data and assessed the risk of bias in the trials. We contacted authors for additional outcomes or trial details when necessary. For mortality outcomes we analysed the results with random-effects model meta-analysis, and for other outcomes we did a qualitative synthesis as meta-analysis was not feasible.

MAIN RESULTS

We included 16 trials, 14 of which had available outcome data (182,880 participants). Nine trials provided data on total mortality (155,899 participants, 11,940 deaths), median follow-up time nine years, giving a risk ratio of 0.99 (95% confidence interval (CI) 0.95 to 1.03). Eight trials provided data on cardiovascular mortality (152,435 participants, 4567 deaths), risk ratio 1.03 (95% CI 0.91 to 1.17) and eight trials on cancer mortality (139,290 participants, 3663 deaths), risk ratio 1.01 (95% CI 0.92 to 1.12). Subgroup and sensitivity analyses did not alter these findings.We did not find an effect on clinical events or other measures of morbidity but one trial found an increased occurrence of hypertension and hypercholesterolaemia with screening and one trial found an increased occurence of self-reported chronic disease. One trial found a 20% increase in the total number of new diagnoses per participant over six years compared to the control group. No trials compared the total number of prescriptions, but two out of four trials found an increased number of people using antihypertensive drugs. Two out of four trials found small beneficial effects on self-reported health, but this could be due to reporting bias as the trials were not blinded. We did not find an effect on admission to hospital, disability, worry, additional visits to the physician, or absence from work, but most of these outcomes were poorly studied. We did not find useful results on the number of referrals to specialists, the number of follow-up tests after positive screening results, or the amount of surgery.

AUTHORS' CONCLUSIONS

General health checks did not reduce morbidity or mortality, neither overall nor for cardiovascular or cancer causes, although the number of new diagnoses was increased. Important harmful outcomes, such as the number of follow-up diagnostic procedures or short term psychological effects, were often not studied or reported and many trials had methodological problems. With the large number of participants and deaths included, the long follow-up periods used, and considering that cardiovascular and cancer mortality were not reduced, general health checks are unlikely to be beneficial.

Physical activity promotion in primary care targeting the older adult

PURPOSE

This integrative review identifies and examines research literature focused on physical activity promotion provided in primary care settings to older adult patients in order to evaluate the effectiveness of provider-delivered interventions on elders short- and long-term activity levels.

DATA RESOURCES

A comprehensive review of original research published in English from all countries through May 2010 was performed. Relevant literature was identified through MEDLINE, CINAHL, and ProQuest on-line databases. Data from 11 unique studies were systematically extracted and summarized in table format.

CONCLUSIONS

Activity interventions delivered in primary care can produce at least short term increases in activity; however, there is limited evidence to evaluate whether long-term changes can be achieved and thus making the case for future longitudinal studies.

IMPLICATIONS FOR PRACTICE

Tailored activity prescriptions should be provided after holistic patient assessment. Activity counseling requires recognition as a billable service and further study is needed to identify the most efficient intervention. Inclusion of health-economic evaluations in future research could reveal if efforts to improve physical activity levels are an efficient use of resources.

Computerized tailored physical activity reports. A randomized controlled trial

BACKGROUND

Computerized, tailored interventions have the potential to be a cost-effective means to assist a wide variety of individuals with behavior change. This study examined the effect of computerized tailored physical activity reports on primary care patients' physical activity at 6 months.

DESIGN

Two-group randomized clinical trial with physicians as the unit of randomization. Patients were placed in the intervention (n=187) or control group (n=207) based on their physician's assignment.

SETTING/PARTICIPANTS

Primary care physicians (n=22) and their adult patients (n=394) from Philadelphia PA. The study and analyses were conducted from 2004 to 2010.

INTERVENTION

The intervention group completed physical activity surveys at baseline, 1, 3, and 6 months. Based on their responses, participants received four feedback reports at each time point. The reports aimed to motivate participants to increase physical activity, personalized to participants' needs; they also included an activity prescription. The control group received identical procedures, except that they received general reports on preventive screening based on their responses to preventive screening questions.

MAIN OUTCOME MEASURES

Minutes of physical activity measured by the 7-Day Physical Activity Recall interview at 6 months.

RESULTS

Participants were 69% female, 59% African-American, and had diverse educational and income levels; the retention rate was 89.6%. After adjusting for baseline levels of activity and gender, there were no differences in physical activity at 6 months. The intervention group increased their total physical activity by a mean of 139 minutes; the control group had a mean increase of 109 minutes (p=0.45).

CONCLUSIONS

Although physical activity increased within both groups, computerized tailored physical activity reports did not significantly increase physical activity between groups at 6 months among ethnically and socioeconomically diverse adults in primary care.

[Structured review of physical activity measurement with questionnaires and scales in older adults and the elderly]

OBJECTIVE

To characterize the distinct questionnaires and scales used to measure physical activity, their conceptual frameworks, psychometric properties and application norms.

METHOD

The review included original articles that used questionnaires or scales to assess physical activity in older adults or the elderly. The CINAHL and MEDLINE databases were consulted for the years 1993 to 2007. The studies selected had to provide information on the use, development and psychometric properties of the instruments. Instruments used in the population aged more than 45 years old were included. Articles that assessed physical activity by direct estimation, complex methods, or physical performance were excluded.

RESULTS

The search produced 166 references and 36 instruments were identified. Most of the studies quantified physical activity, and a minority assessed self-efficacy in physical activity performance and the stage of change. Half of the instruments were self-administered. The most frequently studied reliability was test-retest. Criterion validity was studied in 14 instruments, and 11 of these used at least two alternative methods of measurement. Construct validity was assessed in 26 instruments. Responsiveness was evaluated in only three instruments (YPAS, CHAMPS and Exercise Stage of Change) in addition to reliability and validity.

CONCLUSIONS

The Exercise Stage of Change questionnaire showed responsiveness and sufficient reliability to allow individual use. The 7Day PAR questionnaire and the Modified Baecke Questionnaire (Spanish version), which evaluate physical activity, can be used on an individual basis, although their responsiveness has not been studied. In general, the instruments analyzed do not assess mild intensity activities.

Complex interventions to improve physical function and maintain independent living in elderly people: a systematic review and meta-analysis

BACKGROUND

In old age, reduction in physical function leads to loss of independence, the need for hospital and long-term nursing-home care, and premature death. We did a systematic review to assess the effectiveness of community-based complex interventions in preservation of physical function and independence in elderly people.

METHODS

We searched systematically for randomised controlled trials assessing community-based multifactorial interventions in elderly people (mean age at least 65 years) living at home with at least 6 months of follow-up. Outcomes studied were living at home, death, nursing-home and hospital admissions, falls, and physical function. We did a meta-analysis of the extracted data.

FINDINGS

We identified 89 trials including 97 984 people. Interventions reduced the risk of not living at home (relative risk [RR] 0.95, 95% CI 0.93-0.97). Interventions reduced nursing-home admissions (0.87, 0.83-0.90), but not death (1.00, 0.97-1.02). Risk of hospital admissions (0.94, 0.91-0.97) and falls (0.90, 0.86-0.95) were reduced, and physical function (standardised mean difference -0.08, -0.11 to -0.06) was better in the intervention groups than in other groups. Benefit for any specific type or intensity of intervention was not noted. In populations with increased death rates, interventions were associated with reduced nursing-home admission. Benefit in trials was particularly evident in studies started before 1993.

INTERPRETATION

Complex interventions can help elderly people to live safely and independently, and could be tailored to meet individuals' needs and preferences.

Primary care intervention to reduce alcohol misuse ranking its health impact and cost effectiveness

BACKGROUND

The U.S. Preventive Services Task Force (USPSTF) has recommended screening and behavioral counseling interventions in primary care to reduce alcohol misuse. This study was designed to develop a standardized rating for the clinically preventable burden and cost effectiveness of complying with that recommendation that would allow comparisons across many recommended services.

METHODS

A systematic review of the literature from 1992 through 2004 to identify relevant randomized controlled trials and cost-effectiveness studies was completed in 2005. Clinically preventable burden (CPB) was calculated as the product of effectiveness times the alcohol-attributable fraction of both mortality and morbidity (measured in quality-adjusted life years or QALYs), for all relevant conditions. Cost effectiveness from both the societal perspective and the health-system perspective was estimated. These analyses were completed in 2006.

RESULTS

The calculated CPB was 176,000 QALYs saved over the lifetime of a birth cohort of 4,000,000, with a range in sensitivity analysis from -43% to +94% (primarily due to variation in estimates of effectiveness). Screening and brief counseling was cost-saving from the societal perspective and had a cost-effectiveness ratio of $1755/QALY saved from the health-system perspective. Sensitivity analysis indicates that from both perspectives the service is very cost effective and may be cost saving.

CONCLUSIONS

These results make alcohol screening and counseling one of the highest-ranking preventive services among the 25 effective services evaluated using standardized methods. Since current levels of delivery are the lowest of comparably ranked services, this service deserves special attention by clinicians and care delivery systems.

The Expert Nurse Profile and Diagnostic Content Validity of Sedentary Lifestyle: The Spanish Validation

PURPOSE

To identify the diagnostic content validity of Sedentary Lifestyle and to identify the expert nurse profile in validating this nursing diagnosis in the Spanish cultural context.

METHODS

Fehring's Diagnostic Content Validity (DCV), the factorial validity of the defining characteristics, the analysis of convergent validity, and the expert profile were assessed.

FINDINGS

The DCV index for experts was .70. The factorial validity showed two different factors: the expression of laziness and the performance of activities of daily living. On the expert profile related factors analysis, two factors, experience and education, were identified.

CONCLUSIONS

The DCV for Sedentary Lifestyle was high among the expert nurses. A nurse was considered to be an expert who was able to accurately answer the four labels identified as nursing diagnoses, had read at least one nursing process article in the past year, and was able to list three nursing process reference books.

IMPLICATIONS FOR PRACTICE

Clarifying the manifestations of sedentary lifestyle will assist clinical nurses in determining this diagnosis, and the expert profiles will assist in the selection of participants for content validity studies.

Motivating for cancer prevention

Effective habit change usually requires a combination of psycho-educational, behavioural, and social learning strategies. Motivational interview and shared decision making are likely to be the most efficient approaches. Assessing the current motivation can be based on the transtheoretical model of change (TTM) with the goal to move from one behaviour to another healthier one. In a daily busy clinical practice, brief counselling interventions of one to three visits can substantially help patients change problematic behaviours, particularly in the areas of smoking cessation and exercise. The acronym FRAMES has been used to define the elements of an effective brief intervention which helps to trigger the patient motivation to change; giving Feedback based on a thorough assessment; helping the patient take Responsibility for changing; giving clear Advice on what behaviour must change; offering a Menu of options for making the change; expressing Empathy for the ambivalence and difficulty in making changes; enhancing Self-efficacy to foster commitment and confidence. This chapter reviews relevant aspects of clinician-patient communication with regard to cancer prevention, especially smoking cessation and exercise.

Cardiovascular prevention in the Hartslag Limburg project: effects of a high-risk approach on behavioral risk factors in a general practice population

BACKGROUND

This study describes a general-practice-based high-risk cardiovascular prevention approach in Maastricht, The Netherlands (1999-2003). The intervention consisted of a complete registration of risk factors, optimization of medical treatment and health counseling on high fat consumption, smoking and physical inactivity.

METHODS

Behavioral effects were assessed in a trial, randomization by practice and usual care as control. Validated questionnaires were completed by 1300 patients at baseline, 1174 after 4 months (90.3%) and 1046 (80.5%) after 18 months.

RESULTS

After 4 months, intention-to-treat analyses revealed a decrease in saturated fat intake of 1.3 points (scale ranging from 7 to 30 points, p=0.000). This was partly sustained after 18 months (-0.5 points, p=0.014). After 18 months, obese intervention patients were more likely to be sufficiently physically active than their control counterparts (OR=1.90, p=0.023). No intervention effects were found for smoking.

CONCLUSION

Given the multiple factor and multiple component high-risk approach, the intervention had modest effects on only some of the behavioral risk factors addressed. Process data showed that the registration of risk factors and the optimization of medical treatment were only partly implemented, that the health counseling component could be further improved and that the intervention could benefit from additional health promoting strategies.

[Analysis of the Educational Program for Self-Care in the Elderly (PECA) for improving the quality of life of the elderly]

OBJECTIVE

To determine the efficacy over 12 months of the educational programme on self-care of the elderly (PECA), which covers quality of life, nutritional status, and perceived social support of people over 65 living in their own homes.

DESIGN

Pre-test/post-test experimental study with control group.

SETTING

Urban population in the Manso Health District (Example, Barcelona), Spain.

PARTICIPANTS

Persons over 65 living in their own homes, healthy or with chronic illnesses characteristic of their age, who had a normal score in the Pfeiffer test. A total of 70 subjects (35 per group) were selected and 5 of the control group left the study.

INTERVENTION

Programme on self-care of the elderly, including education on physical activity, nutrition, and social support.

MEASUREMENTS

Dependent variables were quality of life, measured by the Nottingham Health Profile; nutritional status, measured by the Mini-Nutritional Assessment (MNA); and social support, measured by the Duke-Unk Functional Social Support Scale.

RESULTS

The study sample had an average age of 70.9 (SD, 3.1); 88.2% had self-perception of good health; and 21% lived alone. We only found statistically significant differences between pre- and post-intervention observations in nutritional status (P=.001).

CONCLUSION

Despite a statistically significant difference in the variable of nutritional status, the difference was not "clinically" relevant. The ineffectiveness of the intervention is due to our starting from a very homogeneous sample, which had good health status and well-established social networks.

Does socio-economic status influence the acceptability of, attendance for, and outcome of, screening and brief interventions for alcohol misuse: a review

AIMS

To determine whether socio-economic status (SES) influences (i) willingness to participate in brief intervention (BI) research, (ii) attendance to receive BI once allocated, and (iii) treatment outcome.

METHODS

Systematic review of published, randomised controlled trials of BI for non-dependent alcohol misuse in primary health care settings.

RESULTS

Eighteen papers met inclusion criteria. There is evidence that once recruited, and following attendance for intervention, participants' SES does not influence treatment outcome. However, the effect of choosing to participate remains unclear, and the generalizability of results to the whole primary care population remains equivocal. Socio-economic status may influence willingness to participate in BI treatment research, and may influence attendance to receive such interventions where allocated.

CONCLUSION

Brief interventions should remain available to all non-dependent hazardous and harmful drinkers in primary care. However, fidelity to research design is suggested to allow for any participation effects to occur. Benefits of such an approach exist for both clinicians and patients. The characteristics of those who participate in BI trials, compared to those who do not, should be studied in detail. Socio-economic variables should be included as potentially important characteristics. The impact of BI on drinking style as well as consumption needs further attention.

Repeated tobacco-use screening and intervention in clinical practice: health impact and cost effectiveness

BACKGROUND

This report updates 2001 estimates of disease burden prevented and cost effectiveness of tobacco-use screening and brief intervention relative to that of other clinical preventive services. It also addresses repeated counseling because the literature has focused on single episodes of treatment, while in reality that is neither desirable nor likely.

METHODS

Literature searches led to four models for calculating the clinically preventable burden of deaths and morbidity from smoking as well as the cost effectiveness of providing the service annually over time. The same methods were used in similar calculations for other preventive services to facilitate comparison.

RESULTS

Using methods consistent with existing literature for this service, an estimated 190,000 undiscounted quality-adjusted life years (QALYs) are saved at a cost of $1100 per QALY saved (discounted). These estimates exclude financial savings from smoking-attributable disease prevented and use the average 12-month quit rate in clinical practice for tobacco screening and brief cessation counseling with cessation medications (5.0%) and without (2.4%). Including the savings of prevented smoking-attributable disease and using the effectiveness of repeated interventions over the lifetime of smokers (23.1%), 2.47 million QALYs are saved at a cost savings of $500 per smoker who receives the service.

CONCLUSIONS

This analysis makes repeated clinical tobacco-cessation counseling one of the three most important and cost-effective preventive services that can be provided in medical practice. Greater efforts are needed to achieve more of this potential value by increasing current low levels of performance.

Promoting Physical Activity and Exercise in Older Adults

Although the benefits of increased physical activity and exercise are universally recognized, many older persons remain sedentary, and relatively few achieve recommended levels of activity. Effective interventions to reverse the lack of physical activity in older adults are clearly needed. By understanding correlates of inactivity and appreciating those factors that contribute to a sedentary lifestyle, appropriate strategies can be employed to help order patients reap the benefits of increased physical activity and exercise. In this article, we offer to the reader a brief overview of the field as well as our own thoughts on how clinicians might help individual patients at a more practical level.

Motivating minority older adults to exercise

The purpose of this qualitative study was to explore with minority older adults their experience in the Senior Exercise Self-Efficacy Pilot Program (SESEP) and establish what aspects of the SESEP helped the participants engage in exercise and what decreased their willingness to exercise. A total of 148 older adults from 12 Senior Centers participated. The majority of the participants were African American (77%), and female (79%) and the average age was 72.9+/-8.0. Analysis of the semi-structured interviews revealed 36 codes which were categorized and reduced to 13 major themes. Eleven of these themes focused on factors that facilitated participation in exercise and two themes included factors that decreased willingness to participate in exercise. Findings support the use of the theory of self-efficacy to change behavior among minority older adults, and future research should focus on identifying culturally specific interventions that will strengthen these beliefs and thereby increase exercise behavior.

The Value of Elderly Disease Prevention

Approximately 100 million elderly will enter Medicare over the next 25 years. We consider the potential benefits of interventions that would reduce or eliminate the most important risk factors for disease and spending. Effective control of hypertension could reduce health care spending $890 billion for these cohorts while adding 75 million disability-adjusted life years (DALYs). Eliminating diabetes would add 90 million life-year equivalents at a cost of $2,761 per DALY. Reducing obesity back to levels seen in the 1980's would have little effect on mortality, but yields great improvements in morbidity (especially heart disease and diabetes) with a cost savings of over $1 trillion. Smoking cessation will have the smallest impact, adding 32 million DALYs at a cost of $9.045 per DALY. While smoking cessation reduces lung disease and lung cancer, but these are relatively low prevalence compared to the other diseases. Its impact on heart disease is negligible. The effects on overall social welfare are unknown, since we do not estimate the costs of these interventions, the costs of any behavioral modification, or the welfare loss due to providers from lower medical spending.

Motivating elders to initiate and maintain exercise

This article addresses the motivation of elders to initiate exercise. It is part of the study guide on geriatric rehabilitation in the Self-Directed Physiatric Education Program for practitioners and trainees in physical medicine and rehabilitation and geriatric medicine. This article specifically focuses on the health benefits of exercise, describes a theoretical model for assessing and improving an individual's motivation to pursue exercise, details the particular challenges elders face in initiating and adhering to an exercise program, and outlines professional interventions to address these obstacles.

OVERALL ARTICLE OBJECTIVE

To explore the particular challenges elders face in motivation to exercise and to develop a systematic approach for counseling elders toward greater activity.

The Victorian Active Script Programme: promising signs for general practitioners, population health, and the promotion of physical activity

BACKGROUND

The Active Script Programme (ASP) aimed to increase the number of general practitioners (GPs) in Victoria, Australia who deliver appropriate, consistent, and effective advice on physical activity to patients. To maximise GP participation, a capacity building strategy within Divisions of General Practice (DGPs) was used. The objectives of the programme were to (a) train and support GPs in advising sedentary patients, and (b) develop tools and resources to assist GPs.

OBJECTIVE

To evaluate the effectiveness of the ASP.

METHODS

A systems approach was used to promote capacity in Victorian general practice. Economic analyses were incorporated into the programme's evaluation. Participants were selected DGPs and their GP members. The programme worked with DGPs to train GPs and provide relevant resources. The main outcome measures were (a) changes in GP knowledge and behaviour and (b) cost effectiveness, based on modelled estimates of numbers of patients advised and adopting physical activity and gaining the associated health benefits.

RESULTS

GP awareness and provision of physical activity advice increased. Although the programme's reach was modest, based on actual GP involvement, the cost effectiveness figures (138 Australian dollars per patient to become sufficiently active to gain health benefits, and 3647 Australian dollars per disability adjusted life year saved) are persuasive.

CONCLUSIONS

The ASP increased DGPs' capacity to support GPs to promote physical activity. There is a strong economic argument for governments to invest in such programmes. However, caution is warranted about the maintenance of patients' activity levels. Programme refinement to encourage GPs to use community supports more effectively will guide future development. Further research on long term patient adherence through a multisectorial approach is warranted.

Older women and exercise: explanatory concepts

BACKGROUND

Older women remain predominantly sedentary despite potential health benefits and reduced risks of cardiovascular disease associated with regular exercise. Primary care interventions to increase exercise need to focus on constructs amenable to intervention that predict exercise behavior.

PURPOSE

The study tested an explanatory model of older women's exercise behavior using concepts from social cognitive theory, the transtheoretical model, and the theory of planned behavior (self-efficacy, outcome expectancy, perceived exercise barriers, processes of change, perceived health, and age).

METHODS

Data were collected by interviews with 203 older community-dwelling women physically capable of some exercise. Ordinary least squares regression results were used to determine the direct and indirect effects in a path model.

FINDINGS

All concepts and 13 hypothesized paths were retained in the trimmed model. The constructs accounted for 46% of the variance in exercise behavior. Outcome expectancy had the largest total effect. Processes of change had the largest direct effect on exercise behavior. Exercise self-efficacy and perceived exercise barriers accounted for similar amounts of variance in exercise behavior, whereas age and health had only modest effects.

CONCLUSION

Important constructs for future exercise model testing and intervention research should include outcome expectancy, processes of change, exercise self-efficacy, and perceived barriers to exercise. Primary care interventions designed to increase older women's exercise should focus on these same constructs.

The primary prevention of heart disease in women through health behavior change promotion in primary care

PURPOSE

To summarize recent evidence-based recommendations for physical activity promotion, dietary improvement, and tobacco cessation from the U.S. Preventive Services Task Force (USPSTF) and the Task Force on Community Preventive Services (CTF), and examine their applicability to the primary prevention of cardiovascular disease (CVD) in women through primary care interventions.

METHODS

For the behaviors cited, USPSTF and CTF recommendations and their associated systematic evidence reviews (SERs) were retrieved. Individual articles from the USPSTF healthy diet and physical activity SERs that met our inclusion criteria were systematically examined to determine the applicability of this research to women. We supplemented findings from these sources with comprehensive federal research summaries and SERs from focused searches of systematic review databases relevant to primary CVD prevention in women through healthy behavior change.

MAIN FINDINGS

The USPSTF strongly recommends primary care interventions for tobacco cessation. Strong CTF recommendations for multicomponent systems supports for clinicians, telephone support for quitters, and reduced patient costs for effective cessation therapies guide complementary approaches to assist clinicians. The USPSTF recommends intensive behavioral dietary counseling by specialists for high-risk CVD patients, but found insufficient evidence to recommend for routine healthy diet or physical activity promotion in primary care. The evidence base for these recommendations generally applies to women. Better reporting of gender and minority subgroup outcomes will assist more in-depth understanding of potential differences in either the processes or outcomes of behavior change interventions.

CONCLUSIONS

Primary care clinicians, including obstetrician-gynecologists, can contribute to preventing CVD in women through implementing credible evidence-based recommendations for clinical interventions in tobacco and healthy diet. Researchers can further our understanding of gender-specific issues in healthy behavior interventions by reporting process and outcome data for gender and minority subgroups.

Integrative review of physical activity intervention research with aging adults

This paper reviews randomized, controlled trials (RCTs) that have attempted to increase physical activity behavior by aging adults. A systematic review was necessary because numerous studies target older adults, and previous reviews have addressed a limited range of primary studies. Computerized database, ancestry, and extensive search strategies by authors of research reported in English between 1960 and 2000 located diverse intervention trials. RCTs reporting endurance physical activity or exercise behavioral outcomes for at least five subjects were included. Integrative review methods were used to summarize extant research. Forty-two studies were retrieved. Seventeen RCTs with 6,391 subjects were reviewed. A wide variety of intervention strategies were reported. The most common interventions were self-monitoring, general health education, goal setting, supervised center-based exercise, problem solving, feedback, reinforcement, and relapse prevention education. Few studies individually adapted motivational interventions, used mediated intervention delivery, or integrated multiple theoretical frameworks into the intervention. Links between individual intervention components and effectiveness were not clear. Common methodological weaknesses included small samples, untested outcome measures, and time-limited longitudinal designs. Significant numbers of aging adults increased their physical activity in response to experimental interventions. The amount of increased activity rarely equaled accepted behavior standards to achieve positive health outcomes. Further work is essential to identify successful strategies to increase activity by larger numbers of elders and to accelerate the increase in activity by those who change activity behaviors. Sex and ethnic differences need further investigation. There is a vital need for rigorously designed studies to contribute to this science.

Interventions to increase physical activity among aging adults: a meta-analysis

OBJECTIVES

This review applied meta-analytic procedures to integrate primary research findings that test interventions to increase activity among aging adults.

METHODS

We performed extensive literature searching strategies and located published and unpublished intervention studies that measured the activity behavior of at least five participants with a mean age of 60 years or greater. Primary study results were coded, and meta-analytic procedures were conducted.

RESULTS

The overall effect size, weighted by sample size, was d(w) = .26 +/- .05. Effect sizes were larger when interventions targeted only activity behavior, excluded general health education, incorporated self-monitoring, used center-based exercise, recommended moderate intensity activity, were delivered in groups, used intense contact between interventionists and participants, and targeted patient populations. Effect sizes were larger for studies that measured exercise duration and studies with a time interval of less than 90 days between intervention and behavior measurement.

CONCLUSIONS

These findings suggest that group-delivered interventions should encourage moderate activity, incorporate self-monitoring, target only activity, and encourage center-based activity. Findings also suggest that patient populations may be especially receptive to activity interventions. Primary research testing interventions in randomized trials to confirm causal relationships would be constructive.

Establishing an effective framework for physical activity counseling in primary care settings

This article examines the role of the primary care physician in providing physical activity counseling and proposes a framework for maximizing the effectiveness of this activity. Many studies have been conducted to evaluate the effectiveness of physical activity counseling in the primary care setting. Unfortunately, the results of most of these studies have not been encouraging as there has not been compelling evidence that brief physical activity counseling for the general population results in long-term changes in physical activity behaviors. In contrast, the evidence of health improvements in patients who are successful in achieving levels of physical activity consistent with the Surgeon General's recommendations is compelling and should serve as the source of motivation as we seek more effective paradigms for physical activity counseling. The PACE (Patient-Centered Assessment and Counseling for Exercise and Nutrition) Program is presented as an evidenced-based and effective framework for effective physical activity counseling. By adopting a patient-centered approach to counseling and by tailoring the message to the readiness of the patient to take action, it is possible to engage in physical activity counseling in a cost- and time-effective manner. This article provides specific counseling strategies for addressing patients at various stages of readiness to engage in behavior change regarding physical activity.

The organization and financing of health services for persons with disabilities

Americans with disabilities are rarely considered a distinct group of health care users in the same way as are older Americans, children, racial and ethnic minorities, and others who are perceived to have different needs and access issues. Indeed, to some extent individuals with disabilities overlap with all these groups. But they also have distinct needs with material implications for the organization, delivery, and financing of health care services. Despite the disproportionate health care needs and expenditures of many--though not all--individuals with disabilities, the mainstream health services research community has largely neglected them. This article outlines the most pressing health service research issues in addressing the health care needs of individuals with disabilities.

Quality and correlates of physical activity counseling by health care providers in Israel

BACKGROUND

The quantity and quality of physical activity counseling by the health care provider can have a profound impact on improving the physical activity of the older population. This study presents an estimate of the quality and quantity of physical activity counseling and tests the associations of different variables with physical activity.

METHODS

A random telephone survey of 793 Israeli residents between the ages of 45 and 75 was conducted. Counseling by a health care provider was evaluated using a three-stage approach--assess, advise, and assist.

RESULTS

Of those visiting a doctor in the last 3 months 22, 16, and 7% were assessed, advised, and assisted, respectively, regarding physical activity by a health care provider. At all three stages, receiving weight reduction counseling was a main variable correlated with receiving physical activity counseling (OR 3.38-2.43). Having a chronic disease was associated with being assessed; smoking and being a recent immigrant were associated with getting assistance on physical activity. Visiting a health care provider in the last 3 months, and being physically active were also associated with counseling. The dietitians and the physicians had the highest quality and rates of counseling in all three stages.

CONCLUSION

It seems that a sedentary lifestyle is not regarded as an independent risk factor during counseling, but more as an important part of weight reduction. An evaluation of physical activity counseling by the three stages can be used to assess the quality of the counseling.

Effectiveness of physician-based assessment and counseling for exercise in a staff model HMO

BACKGROUND

Few primary care physicians routinely counsel for exercise, despite the benefits of physical activity and the high prevalence of inactivity. The objective of this study is to assess the effectiveness of Physician-Based Assessment and Counseling for Exercise (PACE), a brief, behavior-based tool for primary care providers counseling healthy adults.

METHODS

This study is a randomized controlled trial of 812 patients age 30 years or older registered for well visits at 32 primary care physician offices at a staff model health maintenance organization. Intervention physicians were trained to deliver PACE exercise counseling protocols at the index visit, and one reminder telephone call occurred at 1 month. An enhanced intervention group received additional activity reminders.

RESULTS

At the 6-month follow-up, the control group did not differ significantly from the intervention group for energy expended (2,048 kcal/week versus 2,108 kcal/ week, P = 0.77), time spent in walking or other moderate to vigorous activities (202 min/week versus 187 min/ week, P = 0.99), mental health, physical function, or behaviors previously shown to predict activity change. Among the intervention patients, the stages-of-change score for Contemplators increased significantly compared with controls (P = 0.03), but without a significant change in energy expended. Baseline levels of physical activity counseling were high (50%), as were baseline patient physical activity levels (61% exercised at least three times a week).

CONCLUSIONS

These results suggest that a one-time PACE counseling session with minimal reinforcement, in a setting with high baseline levels of activity, does not further increase activity. The finding that Contemplators advanced in stage of behavior change suggests that further studies are needed to examine long-term, repeated counseling interventions.

Determinants of physical activity initiation and maintenance among community-dwelling older persons

BACKGROUND

Understanding determinants of initiation and maintenance of an active lifestyle among older individuals is of great concern to public health because of the increasing evidence that lifestyle may alter the course of frequently occurring chronic diseases.

METHOD

Two thousand five hundred seven community-dwelling Medicare beneficiaries age 65 and over were interviewed at three points over 4 years regarding their physical activity, defined as a self-report of walking briskly, gardening, or heavy housework at least three times a week. Extensive data were also collected on health status, health services use, sociodemographics, and, at the final interview, self-mastery, importance of various factors in the decision to be physically active, and interaction with their physician regarding physical activity. Determinants of initiation and maintenance of physical activity were identified using logistic regressions.

RESULTS

Forty-one percent maintained an active lifestyle; 12% initiated an active lifestyle; 22% declined to become sedentary; 25% were sedentary at all observation. Predictors of both initiation and maintenance of physical activity were younger age, moderate to excellent health, and the patient's belief that physical activity was important to his/her health. Among the 301 patients who initiated activity, 40% said their physician was a very important influence.

CONCLUSIONS

Strengthening the belief of older individuals in the benefits to their health of physical activity holds promise for increasing the proportion of community-dwelling older persons who move from a sedentary lifestyle to a more physically active lifestyle and for maintaining such activity.

Effects of interventions in health care settings on physical activity or cardiorespiratory fitness

INTRODUCTION

This paper reviews studies of physical activity interventions in health care settings to determine effects on physical activity and/or fitness and characteristics of successful interventions.

METHODS

Studies testing interventions to promote physical activity in health care settings for primary prevention (patients without disease) and secondary prevention (patients with cardiovascular disease [CVD]) were identified by computerized search methods and reference lists of reviews and articles. Inclusion criteria included assignment to intervention and control groups, physical activity or cardiorespiratory fitness outcome measures, and, for the secondary prevention studies, measurement 12 or more months after randomization. The number of studies with statistically significant effects was determined overall as well as for studies testing interventions with various characteristics.

RESULTS

Twelve studies of primary prevention were identified, seven of which were randomized. Three of four randomized studies with short-term measurement (4 weeks to 3 months after randomization), and two of five randomized studies with long-term measurement (6 months after randomization) achieved significant effect on physical activity. Twenty-four randomized studies of CVD secondary prevention were identified; 13 achieved significant effects on activity and/or fitness at twelve or more months. Studies with measurement at two time points showed decaying effects over time, particularly if the intervention were discontinued. Successful interventions contained multiple contacts, behavioral approaches, supervised exercise, provision of equipment, and/or continuing intervention. Many studies had methodologic problems such as low follow-up rates.

CONCLUSION

Interventions in health care settings can increase physical activity for both primary and secondary prevention. Long-term effects are more likely with continuing intervention and multiple intervention components such as supervised exercise, provision of equipment, and behavioral approaches. Recommendations for additional research are given.

A systematic review of physical activity promotion in primary care office settings

OBJECTIVE

To assess the efficacy of physical activity promotion in primary care office settings.

DESIGN

Systematic review of clinical trials in which the efficacy of physical activity promotion was investigated in a primary care office setting with at least one month of follow up.

SUBJECTS

A total of 13,981 adults, aged 17-85+, were included from 203 practices in eight trials assessing physical activity promotion in primary care office settings.

MAIN OUTCOME MEASURES

Odds ratios and 95% confidence intervals were calculated comparing the number of participants who increased their physical activity or were active at follow up in the intervention group with a control group for each study.

RESULTS

Five of eight trials where positive with statistically significant results (range 0.91-6.56), but significant biases or limited clinical relevance of the outcomes were found in all trials. Short term trials of less than one year (four of four were positive), single-risk-factor trials (three of three were positive), randomised clinical trials (two of three were positive), and those assessing moderate levels of physical activity (three of four were positive) were most likely to find benefit. Only one of four trials lasting longer than a year were positive.

CONCLUSION

There is limited evidence from well designed trials that office based physical activity promotion in primary care settings is efficacious in promoting changes in physical activity that could conceivably have lasting clinical benefits.

Meta-analysis of randomized control trials addressing brief interventions in heavy alcohol drinkers

OBJECTIVE

To assess the effectiveness of brief interventions in heavy drinkers by analyzing the outcome data and methodologic quality.

DESIGN

(1) Qualitative analysis of randomized control trials (RCTs) using criteria from Chalmers' scoring system; (2) calculating and combining odds ratios (ORs) of RCTs using the One-Step (Peto) and the Mantel-Haenszel methods. STUDY SELECTION AND ANALYSIS: A MEDLINE and PsycLIT search identified RCTs testing brief interventions in heavy alcohol drinkers. Brief interventions were less than 1 hour and incorporated simple motivational counseling techniques much like outpatient smoking cessation programs. By a single-reviewer, nonblinded format, eligible studies were selected for adult subjects, sample sizes greater than 30, a randomized control design, and incorporation of brief alcohol interventions. Methodologic quality was assessed using an established scoring system developed by Chalmers and colleagues. Outcome data were combined by the One-Step (Peto) method; confidence limits and chi 2 test for heterogeneity were calculated.

RESULTS

Twelve RCTs met all inclusion criteria, with an average quality score of 0.49 + or - 0.17. This was comparable to published average scores in other areas of research (0.42 + or - 0.16). Outcome data from RCTs were pooled, and a combined OR was close to 2 (1.91; 95% confidence interval 1.61-2.27) in favor of brief alcohol interventions over no intervention. This was consistent across gender, intensity of intervention, type of clinical setting, and higher-quality clinical trials.

CONCLUSIONS

Heavy drinkers who received a brief intervention were twice as likely to moderate their drinking 6 to 12 months after an intervention when compared with heavy drinkers who received no intervention. Brief intervention is a low-cost, effective preventive measure for heavy drinkers in outpatient settings.