A Critique of 19 Self-Management Programs for Childhood Asthma: Part II. Comments Regarding the Scientific Merit of the Programs

Development of an expert system knowledge base: a novel approach to promote guideline congruent asthma care

Existing guidelines for the clinical management of asthma provide a good framework for such tasks as diagnosing asthma, determining severity, and prescribing pharmacological treatment. Guidance is less explicit, however, about establishing a patient-provider partnership and overcoming barriers to asthma management by patients in a way that can be easily adopted in clinical practice. We report herein the first developmental phase of the "Stop Asthma" expert system. We describe the establishment of a knowledge base related to both the clinical management of asthma and the enhancement of patient and family self-management (including environmental management). The resultant knowledge base comprises 142 multilayered decision rules that describe clinical and behavioral management in three domains: 1) determination of asthma severity and control; 2) pharmacotherapy, including prescription of medicine for chronic maintenance, acute exacerbation, exercise pretreatment, and rhinitis relief; and 3) patient self-management, including the process of intervening to facilitate the patient's asthma medication management, environmental control, and well-visit scheduling. The knowledge base provides a systematic and accessible approach for intervening with family asthma-related behaviors.

A self-management program for adult asthma. III. Maintenance and relapse of skills

Patient self-management programs have become an integral part of asthma treatment. The goal of such programs is to strengthen the partnership between patients and health care providers in controlling the condition. The present study analyzed how well patients maintained or relapsed in performing asthma self-management skills over time and across settings. It was conducted by contacting patients who had been involved in a successful self-management program an average of 6 years after their participation or an average of 7 years after they completed training. Seventy percent of the patients agreed to participate and complete, either by themselves or over the telephone, a structured interview regarding their experiences in performing asthma self-management. On the basis of their responses, 53 participants were categorized into two groups: continuers or relapsers, according to previously developed and published criteria for relapse. Characteristics that distinguished the two groups were described. As anticipated, those classified as continuers reportedly exhibited broader repertoires of self-management skills across an array of settings. They credited their performance with maintaining control over their asthma. However, two unexpected findings emerged in the study: First, all patients continued to use self-management skills to one degree or another 7 years after they had acquired these skills. Even patients who were categorized as relapsers regularly performed some self-management skills, often involving self-monitoring of their breathing. Second, half of the patients in the relapse group reported that their asthma was in remission and that they were asymptomatic. The self-management skills they reportedly used were performed to monitor and prevent a return of asthma.

Outcomes evaluation of a comprehensive intervention program for asthmatic children enrolled in medicaid

OBJECTIVES

To evaluate health care and financial outcomes in a population of Medicaid-insured asthmatic children after a comprehensive asthma intervention program.

DESIGN

Controlled clinical trial.

SETTING

Pediatric allergy clinic in an urban, tertiary care children's hospital.

SUBJECTS

Eighty children, 2 to 16 years old, with a history of frequent use of emergent health care services for asthma. Intervention. Children in the intervention group received asthma education and medical treatment in the setting of a tertiary care pediatric allergy clinic. An asthma outreach nurse maintained monthly contact with the families enrolled in the intervention group.

OUTCOME MEASURES

Emergency department (ED) visits, hospitalizations, and health care charges per patient in the year after enrollment.

RESULTS

Baseline demographics did not differ significantly between the 2 groups. In the year before the study, there were no significant differences between intervention and control children in ED visits (mean, 3.5 per patient), hospitalizations (mean,.6 per patient) or health care charges ($2969 per patient). During the study year, ED visits decreased to a mean of 1.7 per patient in the intervention group and 2.4 in controls, while hospitalizations decreased to a mean of.2 per patient in the intervention group and.5 in the controls. Average asthma health care charges decreased by $721/child/year in the intervention group and by $178/patient/year in the control group.

CONCLUSIONS

A comprehensive asthma intervention program for Medicaid-insured asthmatic children can significantly improve health outcomes while reducing health care costs.asthma education, health care outcomes, Medicaid, asthma outreach, utilization.

Efficacy of a self-management program for childhood asthma--a prospective controlled study

Asthma training programs for parents and children have been developed to increase both the self-management skills of asthmatic children and compliance with medical regimes. In order to evaluate two training programs for asthmatic children aged 7-14, 81 patients were randomly assigned to three groups. Group 1 consisted of 27 patients and their parents who participated in a five-day standardized family-oriented clinical asthma training program. They had monthly follow-up meetings with the training team for a period of six months. Group 2 (n = 29) had the same clinical training without follow-up interventions; a control group (n = 25) received regular medical treatment according to the international guidelines at the asthma clinics without a training program and served as control group. Questionnaires regarding self-management aspects, coping and anxiety were filled out by patients, parents, family doctors and the training team prior to as well as twelve months after the training. The results indicate that Training group 1 benefitted most with respect to active asthma self-management, Training group 2 to some degree while the control group showed no significant effects. The differences after one year between the three groups regarding physical parameters such as lung-function and days missed in school did not reach the level of significance. Our results indicate that the long-term efficacy of self management courses for asthmatic children is enhanced by regular follow-up training sessions.

Education of parents of infants and very young children with asthma: a developmental evaluation of the Wee Wheezers program

A randomized control trial of the Wee Wheezers asthma education program was conducted with 76 children < 7 years of age, 31% of whom were on a medication regimen consistent with mild, 51% with moderate, and 18% with moderately severe/severe asthma. Treatment children showed improved morbidity at 3-month follow-up relative to the changes in the controls: increased symptom-free days in the preceding 2 weeks (mean change of +2.2 vs. -2.6 in the controls; p = .004) and month (+2.0 vs. -3.8; p < .02), fewer nights of parental sleep interruption in a typical week (+0.7 vs. +1.8; p < or = .05), and a trend toward fewer asthma sick days (-0.2 vs +0.7; p = ns). These improvements were accompanied by significantly better parental asthma management compared with controls (more consistent use of preventive medications, p < or = .01; early symptom intervention, [corrected] p < or = .05) and trends toward more restrictions on smoking in the home (p < .07) and decreased parental confusion about asthma treatment (p < .11). This study provides evidence that a multisession program of asthma education for parents can improve parental asthma management and clinical outcomes in very young children and provides information on the validity and sensitivity of various asthma outcome measures in this age group.

Settings as an important dimension in health education/promotion policy, programs, and research

Settings--community, worksite, schools, and healthcare sites--constitute an important dimension of health education/health promotion policy and programs and for research about program needs, feasibility, efficacy, and effectiveness. These settings vary in the extent of coverage of and relationships with their respective constituencies, valued outcomes, and quantity and quality of evidence about the effectiveness of setting-specific and cross-setting programs. Main sources of evidence for program efficacy and effectiveness are summarized, leading to the conclusion that strides have been made toward building a strong evidentiary base for health education/health promotion in these settings. Gaps in research exist, especially for diffusion of effective programs, new technologies, the influence of policy, relations between settings, and approaches to marginal and special subgroups. Recommendations are offered for cross-setting and within-setting research related to intervention.

Self-management teaching programs and morbidity of pediatric asthma: a meta-analysis

BACKGROUND

Self-management teaching programs are becoming an important asset in the management of pediatric asthma.

OBJECTIVE

The study was designed to evaluate the impact of self-management teaching programs on the morbidity of pediatric asthma.

METHODS

The meta-analysis included randomized clinical trials, published between 1970 and 1991, addressing the outcome of morbidity. Studies were retrieved from searches of MEDLINE, American Journal of Nursing International Index, and Dissertation Abstracts Online Database. The quality of studies was assessed with the scale of Chalmers. The pooled effect size was calculated by the method of Hedges.

RESULTS

The literature search retrieved 23 randomized clinical trials, but 12 studies had to be excluded. Global score of quality of studies (Chalmers' scale) was fair, 51.6% +/- 9.9%. As indicated by the effect size (ES) of the pooled studies, self-management teaching did not reduce school absenteeism (ES: 0.04 +/- 0.08), asthma attacks (ES: 0.09 +/- 0.14), hospitalizations (ES: 0.06 +/- 0.08), hospital days (ES: -0.11 +/- 0.08), or emergency visits (0.14 +/- 0.09).

CONCLUSION

Self-management teaching programs do not seem to reduce morbidity, and future programs should focus more on intermediate outcomes such as behavior.

The Knowledge, Attitude, and Self-Efficacy Asthma Questionnaire

The Knowledge, Attitude, and Self-Efficacy Asthma Questionnaire (KASE-AQ) is a paper-and-pencil instrument that was developed to allow physicians, behavioral scientists, and other health care personnel to assess asthma patients' knowledge regarding asthma, their attitudes about their asthma (including their willingness to cooperate with the physician in managing asthma), and their self-efficacy regarding their perceived ability to control the disorder. The KASE-AQ assesses changes in these patient variables following a particular intervention. The KASE-AQ proved to be reliable and internally consistent, and a factor analysis revealed presence of three subscales in the questionnaire (knowledge, attitude, and self-efficacy about asthma). Following asthma education and self-management training, experimental group subjects showed significant improvements in knowledge, attitude, and self-efficacy. Waiting-list control subjects showed similar improvements following training. Both groups' scores at 3-month follow-up remained significantly higher than their baseline scores on all 3 variables.

Characteristics of asthma mortality and morbidity in African-Americans

The percent rise in the number of asthma deaths was analyzed using data from the National Center of Health Statistics and compared for African-Americans and Caucasians. The rate of increase for African-Americans in the period 1979-1983 was nearly twice that of Caucasians, and the difference among genders for Caucasians was significantly higher for females. In Baltimore a high percentage (29%) of adult asthma patients (86.8% African-American) seen in an emergency room (ER) and living in the inner city had frequent visits (6 or more annually) to the ER. One-third of the patients used the ER exclusively for asthma management, and 39% delayed for at least 48 hr after onset of symptoms before seeking medical assistance. One-fourth had daily symptoms, and 11% of those regularly employed had missed 10 or more days annually because of asthma. Among the high ER users, 39% required more than one annual hospitalization for management of acute exacerbation of asthma symptoms. Risk factors for mortality and morbidity among inner-city and minority populations as well as potential areas of intervention are discussed.

Educating school personnel about asthma

Teachers, administrators, and other nonmedical personnel are frequently responsible for managing students with asthma during school hours. We determined that the school secretary is the most likely person to manage asthma at school. We developed an educational program for both nonmedical and medical school personnel entitled "Asthma Management in the Schools." A questionnaire designed to evaluate knowledge and obtain information about asthma care at school was mailed to participants several weeks before they attended the program and was administered again after the program was presented. Nonmedical personnel had lower mean preclass test scores than nurses, but mean postclass test scores were similar. Programs designed to improve asthma care in school should meet the needs of nonmedical personnel.

Facilitated referral to asthma specialist reduces relapses in asthma emergency room visits

Facilitated asthma-specialist care delivered by allergists was compared to generalist care on the rate of relapse of asthma emergency room (ER) visits and hospitalizations and on asthma control in a prospective, controlled study of San Diego Kaiser Health Plan members with asthma. Subjects with asthma between the ages of 6 and 59 years presenting for acute ER care for asthma were systematically assigned by alternating, consecutively, the day of their ER visit to receive either (1) facilitated referral to an asthma specialist within the allergy department and concomitant comprehensive ongoing asthma care (intervention group, n = 149) or (2) continued outpatient management from generalist physicians (control group, n = 160). The course of their asthma was evaluated blindly during the subsequent 6 months by review of medical records, initial and follow-up questionnaires, and spirometry. Compared to the control group, the intervention group noted (1) a 75% reduction in the number of, and percent of, subjects with asthma awakenings per night (p less than or equal to 0.0001), (2) an almost 50% reduction in asthma ER relapses (p = 0.017) resulting from a reduction in the frequency of multiple relapse (p = 0.005), and (3) a greater use of inhaled corticosteroids (p less than 0.00001) and cromolyn (p = 0.002). Thus, facilitated referral of subjects with asthma to specialists in asthma therapy after acute ER therapy appears to reduce asthma ER relapses and to improve asthma outcome.