Time course of nocturnal cough and wheezing in children with acute bronchitis monitored by lung sound analysis

Cough and wheezing are the predominant symptoms of acute bronchitis. Hitherto, the evaluation of respiratory symptoms was limited to subjective methods such as questionnaires. The main objective of this study was to objectively determine the time course of cough and wheezing in children with acute bronchitis. The impact of nocturnal cough on parent's quality of life was assessed as secondary outcome. In 36 children (2-8 years), the frequency of nocturnal cough and wheezing was recorded during three nights by automated lung sound monitoring. Additionally, parents completed symptom logs, i.e., the Bronchitis Severity Score (BSS), as well as the Parent-proxy Children's Acute Cough-specific Quality of Life Questionnaire (PAC-QoL). During the first night, patients had 34.4 ± 52.3 (mean ± SD) cough epochs, which were significantly reduced in night 5 (13.5 ± 26.5; p < 0.001) and night 9 (12.8 ± 28.1; p < 0.001). Twenty-two patients had concomitant wheezing, which declined within the observation period as well. All subjective parameters (BSS, Cough log and PAC-QoL) were found to be significantly correlated with the objectively assessed cough parameters.Conclusion: Long-term recording of cough and wheezing offers a useful opportunity to objectively evaluate the time course of respiratory symptoms in children with acute bronchitis. To assess putative effects of pharmacotherapy on nocturnal bronchitis symptoms, future studies in more homogeneous patient groups are needed. What is Known: • Cough and wheezing are the predominant symptoms of acute bronchitis. • There is a diagnostic gap in long-term assessment of these respiratory symptoms, which needs to be closed to optimize individual therapies. What is New: • Long-term recording of nocturnal cough and wheezing allows for objective evaluation of respiratory symptoms in children with acute bronchitis and provides a tool to validate the efficacy of symptomatic bronchitis therapies.

Quality of life, distress and self-esteem: A focus group study of people with chronic bronchitis

Chronic bronchitis (a form of chronic obstructive pulmonary disease or COPD) is a common cause of morbidity and mortality resulting in around 5% of deaths in the UK. Over recent years, there has been an increased emphasis on patient-based evaluation of health and social care, which has led to a rapid growth in quality of life measures and an increase in measuring quality of life for COPD patients. However, less attention has been paid to patients' perceptions and experiences of everyday life, specifically their active engagement in the psychological, emotional and social aspects of adjustment and adaptation to living with chronic bronchitis. This study employs a series of four focus groups (N = 20) to identify key experiences of living with chronic bronchitis. The results, obtained through using both thematic and conceptual qualitative analysis, within a broadly symbolic interactionist framework, describe the subjective and sometimes contradictory ways in which the disease leads to psychological distress, dependency on medication, and disruption to social and family relationships, and has a negative impact on self-esteem. The study further argues for greater awareness of qualitative approaches to the broad view of quality of life as complementary to quality of life assessments.

Perception of airway obstruction and airway inflammation in asthma: a review

Dyspnea has a multifactorial nature and the exact mechanism that causes breathlessness in asthma is not fully understood. There is compelling evidence that factors other than merely mechanical ones take part in the pathophysiology of breathlessness. Some recent reports attribute airway inflammation, which may contribute to the unexplained variability in the perception of dyspnea associated with bronchoconstriction. Eosinophil airway inflammation has been proposed as a determinant of breathlessness via mechanisms affecting either the mechanical pathways that control breathlessness or the afferent nerves involved in perception of dyspnea. In this review, data on the interrelation between inflammation and dyspnea sensation and the impact of treatment on dyspnea sensation are discussed. We conclude that regardless of whether mechanical or chemical inflammatory factors are involved, much variability in dyspnea scores remains unexplained.

Chronic respiratory symptoms, spirometry and knowledge of COPD among general population

RATIONALE

Infradiagnosis of chronic obstructive pulmonary disease (COPD) may be related to the lack of knowledge about the disease and/or the scarce use of diagnostic procedures. This study analyses the frequency of respiratory symptoms and the knowledge about COPD in the general population, together with the use of spirometry in individuals at risk of COPD.

POPULATION AND METHOD

A telephone survey was carried out in 6758 subjects older than 40 years, stratified by age, habitat (urban or rural) and region, screened by random-digit dialling.

RESULTS

Up to 24% reported having at least one chronic respiratory symptom and 20.9% had a self-reported respiratory diagnosis. A total of 19.2% were active smokers and 40% had never tried to quit. Only 60% of the individuals with chronic symptoms had consulted a physician and, of them, only 45% had undergone spirometry. Spirometry was mentioned more frequently by subjects attended by pulmonologists than by GPs (67.6 vs. 28.6%; P<0.001). The term COPD was identified only by 8.6% of the participants.

CONCLUSIONS

Many individuals with respiratory symptoms do not request medical attention and do not attempt to quit smoking. There is a lack of knowledge about COPD. Physicians should more actively inform about the disease and increase the use of spirometry for early detection.

Asthma and internalizing behavior problems in adolescence: a longitudinal study

OBJECTIVE

Clinical studies of asthmatic children have found an association between lung disease and internalizing behavior problems. The causal direction of this association is, however, unclear. This article examines the nature of the relationship between behavior and asthma problems in childhood and adolescence.

METHODS

Data were analyzed on 5135 children from the Mater University Study of Pregnancy and its outcomes (MUSP), a large birth cohort of mothers and children started in Brisbane, Australia, in 1981. Lung disease was measured from maternal reports of asthma/bronchitis when the children were aged 5 and maternal reports of asthma symptoms when the children were aged 14. Symptoms of internalizing behaviors were obtained by maternal reports (Child Behavior Checklist) at 5 years and by maternal and children's reports at 14 years (Child Behavior Checklist and Youth Self Report).

RESULTS

Although there was no association between prevalence of asthma and externalizing symptoms, asthma and internalizing symptoms were significantly associated in cross-sectional analyses at 5 and 14 years. In prospective analyses, after excluding children with asthma at 5 years, internalizing symptoms at age 5 were not associated with the development of asthma symptoms at age 14. After excluding children with internalizing symptoms at 5 years, those who had asthma at 5 years had greater odds of developing internalizing symptoms at age 14.

CONCLUSION

Children who have asthma/bronchitis by the age of 5 are at greater risk of having internalizing behavior problems in adolescence.

Improving Dyspnea Management in Three Adults With Chronic Obstructive Pulmonary Disease

This case report describes occupational therapy intervention for three adult outpatients with chronic obstructive pulmonary disease (COPD) at one large urban hospital. The occupational therapy intervention was based on the Management of Dyspnea Guidelines for Practice (Migliore, in press). The learning and practice of controlled breathing were promoted in the context of physical activity exertion in a domiciliary environment. In addition to promoting dyspnea management, the controlled-breathing strategies aimed to facilitate energy conservation and to increase perceived breathing control. Although no causality can be determined in a case study design, the patients’ dyspnea with activity exertion decreased and their functional status and quality of life increased following goal-directed, individualized occupational therapy intervention combined with exercise training.

Relationship between quality of life and clinical status in asthma: a factor analysis

Many studies have shown that correlation between clinical asthma status and asthma-specific quality of life is only weak to moderate. However, this relationship has never been explored to determine whether the weakness is due to noise of measurement or whether quality of life is a distinct component of asthma health status. With a database from three clinical trials (n = 763), factor analysis was used to explore the relationships between quality of life, measured by the Asthma Quality of Life Questionnaire (AQLQ), and conventional measures of asthma clinical status (symptoms, airway calibre and rescue beta2-agonist use). The analysis revealed that although patients with severe, poorly controlled asthma tend to have worse quality of life than milder, well-controlled patients, overall asthma health status has four components (factors): asthma-specific quality of life; airway calibre; daytime symptoms and daytime beta2-agonist use, and night-time symptoms and night-time beta2-agonist use. The clean loading of all 21 outcomes onto four distinct and clinically identifiable factors suggests that, although some weakness of correlation between clinical indices and quality of life may be due to noise of measurement, it is mainly attributable to asthma health status being composed of distinct components.

Principles of appropriate antibiotic use for treatment of uncomplicated acute bronchitis: background

The following principles of appropriate antibiotic use for adults with acute bronchitis apply to immunocompetent adults without complicating comorbid conditions, such as chronic lung or heart disease. The evaluation of adults with an acute cough illness or a presumptive diagnosis of uncomplicated acute bronchitis should focus on ruling out serious illness, particularly pneumonia. In healthy, nonelderly adults, pneumonia is uncommon in the absence of vital sign abnormalities or asymmetrical lung sounds, and chest radiography is usually not indicated. In patients with cough lasting 3 weeks or longer, chest radiography may be warranted in the absence of other known causes. Routine antibiotic treatment of uncomplicated acute bronchitis is not recommended, regardless of duration of cough. If pertussis infection is suspected (an unusual circumstance), a diagnostic test should be performed and antimicrobial therapy initiated. Patient satisfaction with care for acute bronchitis depends most on physician--patient communication rather than on antibiotic treatment.

The patient's burden: physical and psychological effects of acute exacerbations of chronic bronchitis

In this prospective qualitative study we evaluated the subjective perspectives of the quality of life of patients with chronic bronchitis. Individuals with diagnoses which fulfilled the clinical criteria of chronic bronchitis, i.e. daily production of sputum for at least three consecutive months in two consecutive years, were recruited into four focus groups from general practices in two industrial cities. Younger patients (those of pre-retirement age) of both sexes-a significant, but frequently 'invisible' minority in this patient population-were targeted. The groups were constituted with the aim of stimulating variation in the discussions. Twenty sufferers (10 males and 10 females, ranging in age from 30 to 86 years) were eventually included in the study; there were five in each group. Group discussions were recorded and transcribed verbatim and the data were analysed thematically. It was evident from the discussions that chronic bronchitis had led to a high degree of psychological distress in the participants, particularly in relation to dependency on medication, and disruption of social and family relationships. Acute exacerbations of chronic bronchitis (AECB) were met with dread. They brought about further reductions in quality of life, increased anxieties about breathlessness, fear of atmospheric pollution and of changes in and extremes of temperature, embarrassment about coughing up phlegm in public and suspicion of medical practitioners' motives if they were unwilling to prescribe antibiotics on request. Patients' health-related behaviour and beliefs were often contradictory. For example, AECB in some patients led to increased smoking. There were also gender and age differences; for example, it was the perception of males that they received more support from their partners than did females. Younger participants appeared more distressed by AECB than older ones. The results of this study suggest that raising the standard of care for patients with chronic bronchitis requires that greater attention be paid to patients' subjective experiences of the disease.

[Illness specific data collection on quality of life of patients with asthma and chronic obstructive bronchitis]

Resource allocation in health care and rehabilitation has been increasingly influenced by medical outcome studies. In recent years, the importance of health-related quality of life (HRQOL) in the evaluation of medical care and intervention practice has been widely acknowledged. In particular for chronic diseases like asthma or COPD the multi-dimensional concept of quality of life (QOL) has adopted the role of an essential outcome parameter. Instruments used to measure QOL can be categorised as one of two types: a) generic instruments which assess overall QOL and b) disease-specific questionnaires which focus on specific aspects related to a particular disease. Over the last two decades more than 1,000 QOL-instruments have been developed, including nearly 20 disease-specific inventories for patients with chronical lung diseases. In clinical practice, both generic and specific questionnaires are used to assess quality of life in patients with asthma and COPD. Disease-specific QOL-instruments are considered to be more sensitive in establishing the specific restrictions related to asthma or COPD and in detecting possible improvements in QOL after treatment. To exemplify its properties, limitations, and special methodological issues, we chose two of the most widely used and well-validated disease-specific quality of life inventories: the "St. George Hospital Respiratory Questionnaire (SGRQ)" and the "Fragebogen zur Lebensqualität bei Asthma (FLA)". The FLA, representing the German revision of the "Living with Asthma Questionnaire (LAQ)" (Hyland et al., 1991), has been one of the first questionnaires available for measuring disease specific quality of life (QOL) in adults with asthma. The FLA contains 40 items in three dimensions ("physical symptoms", "functional status", "psychological distress"). The SGRQ (Jones et al., 1991) is a standardized questionnaire for measuring health related restrictions and quality of life in patients with chronical lung disease. In contrast to LAQ/FLA the SGRQ can be used both for patients with asthma and COPD. It includes 76 items, divided in three subscales ("symptoms", "activity", and "impacts") permitting to calculate different summary scores as well as a total score. Both questionnaires appear to be reliable, valid and efficient for the assessment of QOL in patients with asthma or COPD, and may facilitate decision making in the treatment process. On the other hand there are some unsolved methodological problems requiring further investigations and improvements in this research area.

The relation between morbidity and cognitive performance in a normal aging population

BACKGROUND

Factors related to physical health have been implicated in both normal and pathological aging of cognitive abilities. To substantiate this notion, we studied existing morbidity, as diagnosed by the general practitioner according to well-defined criteria, as a potential predictor of cognitive test performance.

METHODS

A sample of 1360 individuals, aged 24-81 years and living in the community, was stratified for age, sex, and general ability. Active and total morbidity in this group were classified according to the International Classification of Primary Care. Neurocognitive tests were used to assess the domains of verbal memory, sensorimotor speed, and cognitive flexibility.

RESULTS

Multiple regression analyses with adjustment for age, sex, and educational level showed both insulin-dependent and noninsulin-dependent diabetes to be negatively associated with all cognitive measures. More specific negative associations were found for chronic bronchitis (performance speed) and presbyacusia (memory). Single or aggregated cardiovascular morbidity (including hypertension) was unrelated to test performance.

CONCLUSIONS

Existing morbidity as a whole contributes only modestly (up to 3.5%) to total variance in cognitive function. However, some specific, relatively common diseases of the elderly, such as diabetes and chronic bronchitis, may aggravate the age-related decline in cognitive ability.

Psychophysiologic predictors of weaning from mechanical ventilation in chronic bronchitis and emphysema

This study identified psychophysiologic variables related to successful weaning in 27 ventilator-dependent patients with chronic bronchitis and emphysema (CBE) from two long-term care pulmonary-specialty hospitals in South Central Florida. Subjects were studied from admission until weaning occurred (successful weaning without mechanical ventilation) or until they were transferred without being weaned or died (unsuccessful weaning). The study subjects, 15 males and 12 females, ranged in age from 56 to 89. Baseline data on the variables (age, mastery, hope, social support, dyspnea, and rapid shallow breathing index [RSBI]) were not statistically significant by gender. The logistic regression model identified mastery and RSBI to be the best predictors of successful weaning (model chi 2 = 16.33, df = 2, and p value = .0003; prediction rate 82%).

Cognitive function in community-dwelling elderly with chronic medical conditions

OBJECTIVES

The aim of this study was to examine the effect of chronic medical conditions on cognitive function in a sample of community-dwelling elderly (N = 4528).

METHODS

A checklist of 18 chronic medical conditions was used to determine whether respondents were suffering from specific disease states. The Mini Mental Status Examination (MMSE) was administered to assess cognitive functioning.

RESULTS

Statistically controlling for the effects of age, education and depression, respondents with asthma/bronchitis and stroke had a tendency to perform worse on the MMSE than those without these conditions. None of the 18 medical conditions was associated with a greater proportion of respondents scoring below the cutoff for cognitive dysfunction.

CONCLUSION

It appears that--with the possible exception of stroke and asthma/bronchitis-cognitive function in community-dwelling elderly is not consistently affected by specific disease states.

The development of the 'Quality-of-life for Respiratory Illness Questionnaire (QOL-RIQ)': a disease-specific quality-of-life questionnaire for patients with mild to moderate chronic non-specific lung disease

Chronic non-specific lung disease (CNSLD) encompasses asthma as well as chronic obstructive pulmonary disease (COPD). Recently in health care, there has been increasing awareness in the functional, psychological and social aspects of the health of patients; their quality of life (QOL). Quality-of-life research addressing CNSLD patients has been rather underdeveloped for a long period of time. Recently, however, the importance of QOL is being increasingly recognized, and several research groups have started to study QOL in CNSLD patients in more detail. This paper describes the construction of a disease-specific QOL instrument for patients with mild to moderately severe CNSLD. Items relating to several domains of QOL were listed, and 171 CNSLD patients in general practice were asked how much of a problem each item had been (assessed on a seven-point Likert scale). After applying an item-selection procedure, a uni-dimensional QOL questionnaire was constructed consisting of 55 items divided into seven domain subscales: breathing problems, physical problems, emotions, situations triggering or enhancing breathing problems, general activities, daily and domestic activities, and social activities, relationships and sexuality. Reliability estimates of the domain subscales of the constructed questionnaire varied from 0.68 to 0.89, and was 0.92 for the QOL for Respiratory Illness Questionnaire (QOL-RIQ) total scale. A first impression of the construct validity of the questionnaire was gained by investigation of the relationship between the QOL domain subscales and several indicators of illness severity, as well as the relative contribution of illness severity variables, background characteristics and symptoms to QOL, using regression analysis. Further research to validate the questionnaire to a greater extent (construct validity, test-retest reliability and responsiveness to change) is currently taking place.

[Symptoms and life of patients with chronic bronchitis. Preliminary results]

Improvement in the bronchial obstruction is the aim of treatment for patients with chronic bronchitis. In this work, we attempted to identify subjective psychosocial and neurophysiological factors which are essential for understanding the quality of life in these patients. The study included 77 male patients under 80 years of age who were diagnosed as having chronic bronchitis by their family physician. In all cases, the disease state was stable without any other complication or co-morbidity. Each patient responded to a questionnaire and underwent volume-flow tests. The population was divided into 2 groups by VEMS: VEMS > or = 50% (n = 48) and VEMS < 50 (n = 19). Main component analysis followed by varimax rotation was used to analyse data. A Cronbach coefficient was calculated to measure data skewness. The Pearson correlations were calculated for the different factors. Mean intergroup means were compared with the unpaired t test. Data analysis demonstrated two physical factors: dyspnea and bronchial obstruction; 4 psychological factors: anxiety, impotency/hopeless feeling, depression, fatigue: and one psychological trait. Key symptoms of chronic bronchitis developed in patients with affective states contributing to the patient's subjective description of his disease and influencing therapeutic management. A better understanding of these patients is needed to improve treatment of chronic bronchitis.

Acute bronchitis: course of symptoms and restrictions in patients' daily activities

OBJECTIVE

To obtain information on the course of complaints and restrictions in daily activities of patients with acute bronchitis.

DESIGN

Prospective study.

SETTING

General practice.

SUBJECTS

Otherwise healthy persons over 16, who visited their GP with an acute cough with purulent sputum and/or auscultatory abnormalities.

MAIN OUTCOME MEASUREMENTS

Recordings by patients on reasons for encounter, symptoms and restrictions in daily activities at entry, and one and two weeks after entry.

RESULTS

99 Patients were included, of whom 79 were suitable for further analysis. Discomfort caused by coughing and concern in the patient and his/her social environment were the main reasons why patients visited their general practitioner. Counting from the onset of the disease it took three to four weeks before most patients were well and able to perform all their usual daily activities again.

CONCLUSION

In most cases acute bronchitis has considerable impact on patients' well-being and daily activities for some weeks.

Orally administered N-acetylcysteine may improve general well-being in patients with mild chronic bronchitis

Oral N-acetylcysteine (NAC) exerts a beneficial action in chronic bronchitis by reducing the number of exacerbations. There have been few studies of the effect of NAC (or of any other drug) on general well-being in chronic bronchitis. We used an established psychiatric instrument (General Health Questionnaire; GHQ) and a visual analogue scale (VAS) to measure well-being in a 22-week, placebo-controlled, double-blind, parallel-group study of NAC administered as sustained release tablets 600 mg b.i.d., including during the winter months, to patients with mild chronic bronchitis. One hundred and fifty-three patients were accepted for randomized treatment, 129 finished the study (59 NAC, 70 placebo), and well-being was measured in 105 (46 NAC, 59 placebo). The number of observed exacerbations was unexpectedly low in both groups. The number was lowest in the NAC group, however, the difference did not reach statistical significance in the present study (P = 0.08). There were no statistically significant differences between NAC and placebo in subjective symptom scores, FEV1 or FVC. The distribution of GHQ score at baseline was uneven, but NAC was significantly superior to placebo in terms of a favourable effect on GHQ score. GHQ score correlated with the number of exacerbations, and VAS correlated with GHQ score. This study therefore demonstrates the validity of measuring general well-being in patients with mild chronic bronchitis. Future studies of the treatment of chronic bronchitis should use a battery of more specifically adapted instruments which are now becoming available to measure well-being.

Effects of guided imagery in patients with chronic bronchitis and emphysema

Together, chronic bronchitis and emphysema (CBE) ranks as one of the top five leading health problems in the United States. Few nursing interventions have been tested that improve symptom management, functional status, and quality of life. This study tested the effects of guided imagery and maximal inspiratory muscle training (MITT) in a group of 10 males and 9 females, 56-75 years old, with moderate CBE. The research tested whether the independent variables, guided imagery and MITT, have significant independent and/or interaction effects on the dependent variables functional status, fatigue, dyspnea, depression, mastery, quality of life, perceived health status, and inspiratory muscle strength. Results showed that the psychologic intervention of guided imagery significantly improved subjects' perceived quality of life. The physiologic intervention of MITT could not be tolerated by subjects, which precluded testing the effects on the dependent variables. Application of study findings to clinical practice and the need for further research are discussed.

Perceived uncertainty, physical symptoms, and negative mood in hospitalized patients with chronic obstructive pulmonary disease

OBJECTIVE

To determine whether perceived uncertainty and physical symptoms were related to negative mood in hospitalized patients with chronic bronchitis and/or emphysema.

DESIGN

Descriptive correlational.

SETTING

Five large teaching hospitals in a city in central Canada.

SUBJECTS

The sample consisted of 15 men and 11 women ranging in age from 53 to 86 years.

INSTRUMENTS

Mishel Uncertainty in Illness Scale; Somatic Scale of the Bronchitis Emphysema Symptom Checklist; and Tension, Depression and Anger Subscales of the Profile of Mood States.

RESULTS

Only the variable of physical symptoms contributed to the negative mood of the subjects with chronic obstructive pulmonary disease, explaining 21% of the variance (p < 0.02). Of the four symptom categories measured (fatigue, dyspnea, congestion, and peripheral-sensory disturbance), only fatigue was a significant predictor (p < 0.006) of negative mood, accounting for 28% of the variance.

CONCLUSION

Negative mood is evidence of impaired coping. The finding that fatigue contributed to negative mood provides support for the theoretic prediction that low energy interferes with an individual's ability to cope with a stressful situation.

Treatment with inhaled steroids in asthma and chronic bronchitis: long-term compliance and inhaler technique

We investigated compliance and inhaler technique in 50 patients with airway obstruction (26 asthma, 24 chronic bronchitis) being treated with inhaled steroid (beclomethasone dipropionate, BDP) via a dry powder inhaler (Rotahaler omega). Patients had already participated for one year in a 2-year trial of BDP in general practice. They were treated daily with two dry powder inhalations of 400 micrograms BDP in combination with a bronchodilator. Compliance with BDP was measured by counting capsules (single-blind) at the end of a 4-month period and through a questionnaire. Counting capsules revealed non-compliance in 46% of the patients. Compliance was not related to age, sex, diagnosis or side-effects of BDP. In chronic bronchitis, but not in asthma, compliance was related to the outcome parameters of steroid treatment (pulmonary symptoms, change in lung function and non-specific bronchial responsiveness). The inhaler technique was judged insufficient in 27% of the patients. This study stresses the importance of regular instruction in inhaler technique and proper information about prophylactic steroid treatment by the general practitioner during the treatment of asthma and chronic bronchitis.

The validity of the MIMIC (Multiple Indicators/MultIple Causes) health index--some empirical evidence

This study evaluates the potential of econometric models with latent (unobservable) variables for measuring health or health impairment due to a specific disease. A MIMIC disability index is estimated for a sample of 145 adults with chronic bronchitis, expressing their self-reported disability caused by the disease on a one-dimensional scale. The index is determined up to a linear transformation. Disability is thus measured on an interval scale. The data were collected by interviews. The questionnaire used for this purpose is based on a number of in-depth interviews with selected bronchitis patients conducted beforehand. The study therefore focuses directly on the patients' perceptions of their disease. The validity of the index is evaluated in three different ways. First, construct validity is assessed performing groupwise analysis and testing for differences in the index values by subgroup. To a large extent, the index is consistent with a priori expectations. Therefore, we conclude that it has high construct validity. Second, validity of the index is assessed by comparing its results to a direct rating scale produced by 21 physicians with various medical backgrounds. The MIMIC index turns out to be related in a systematic, but nonlinear way to this direct rating scale. This can be interpreted in two different ways. If one accepts the preferences of health providers as the ultimate yardstick when it comes to ranking health or chronic states the result suggests that the MIMIC index estimated in this way is not a valid measure of treatment success. By contrast, if patients' preferences are considered to be decisive, it suggests that physician-based ratings should be substituted for or at least complemented with patient-based indices (such as the MIMIC disability index estimated here) when evaluating medical services in terms of cost-effectiveness. Third we explore the extent to which the MIMIC index reflects utility associated with different states of disability, using a modified Torrance Standard Gamble approach. The above-mentioned physicians are used as experts in this procedure. The results indicate that the MIMIC index as estimated here is related in a systematic, but nonlinear way to the Standard Gamble risk index as well. The fact that this relationship is nonlinear indicates that the MIMIC index does not measure utility as derived from the experts' preferences directly. How this index would fare compared to a Standard Gamble risk index provided by patients (bronchitis subjects) is a question which remains open.(ABSTRACT TRUNCATED AT 400 WORDS)

Effects of psychological well-being, physical status, and social support on oxygen-dependent COPD patients' level of functioning

Thirty oxygen-dependent patients with chronic obstructive pulmonary disease (COPD) participated in a descriptive correlational study in which investigators examined the relationship between oxygen-dependent COPD patients' psychological well-being, physical status, social support, and level of functioning. Lazarus and Folkman's (1984) theory of psychological stress and coping was used to guide the study. Using multiple regression analysis, physical symptoms had the most predictive power in relation to the level of functioning, accounting for 44.3% of the variance. Among the symptoms, dyspnea had the greatest influence on functioning.

Disease and symptom severity, functional status, and quality of life in chronic bronchitis and emphysema (CBE)

A path analysis model examined interrelationships among variables significantly associated with chronic dyspnea in chronic bronchitis and emphysema (CBE) and the relative influence of these variables on each other and on functional status and quality of life. Results from the 45 adults (mean age, 61) with moderate CBE disease severity showed that dyspnea severity has a sizable effect on functional status and quality of life. Disease severity was more strongly related to functional status than to quality of life. Depression and mastery had the strongest total effects on quality of life. Dyspnea severity had strong but separate effects on functional status and quality of life. From these preliminary results, it is suggested that a direct focus on psychologic interventions to ameliorate depression and improve mastery is likely to improve quality of life with some resultant positive effect on functional status.

[Self perception in patients with lung cancer and chronic bronchitis]

A study on perception of oneself (self acceptance, self review, self acceptance) was carried out in 30 male subjects with lung cancer and 30 male subjects with chronic bronchitis. A standardized review allowed to characterise each patient. A diagnostical questionnaire added information on each patient's characterological status. A decrease of self acceptance was found that was proportional to duration of disease. The results of this study demonstrated the variations in characterology of patients influenced by their disease process.

Alexithymia in chronic bronchitis/emphysema: personality characteristics and illness attitudes

Personality characteristics and illness attitudes of alexithymic and nonalexithymic chronic bronchitis/emphysema patients were assessed using the Minnesota Multiphasic Personality Inventory (MMPI) along with supplementary scales and the Respiratory Illness Opinion Survey (RIOS). Two validity scales, three clinical scales and one supplementary scale from the MMPI along with one illness attitude category from the RIOS discriminated alexithymic and nonalexithymic patients. These findings are disparate from those observed in an asthmatic population and point to an interplay between illness type and alexithymia in terms of personality and illness attitudes.

Chronic bronchitis: prevalence, smoking habits, impact, and antismoking advice

Although the prevalence of chronic bronchitis has been measured in several populations, its impact on quality of life has not been assessed. We report the prevalence and impact of chronic bronchitis (defined as having phlegm on most days for at least 3 months during the previous year) among 4,708 adults ages 20 to 69 representative of the nonaged U.S. population. Men reported chronic bronchitis more frequently than women (12 vs 8%); smokers, regardless of age and sex, reported chronic bronchitis more frequently than former or never smokers. Among both men and women 35 years of age or older, current smokers--as opposed to ex- or never smokers--with chronic bronchitis had the poorest forced expiratory volume in 1 sec (FEV1). The most commonly reported impact of chronic bronchitis was worry, followed by pain and restricted activity days, regardless of age, sex, or smoking habits. Of those current and ex-smokers who had seen a physician about their chronic bronchitis, 65% of men and 44% of women had decreased or stopped smoking. Among those current and ex-smokers with chronic bronchitis who did not consult a physician, the proportion of those who had decreased or stopped smoking was 29% for men and 37% for women. Finally, only 43% of male current smokers and 55% of female current smokers who had chronic bronchitis reported that a physician had advised them to decrease or stop smoking.

Alexithymia and chronic respiratory disease. A review of current research

Alexithymia within a chronic respiratory illness population has been given considerable attention in the psychiatric/psychological literature over the course of the past 5 years. Various observations as to the alexithymic trait within the chronic respiratory diseases (asthma, chronic bronchitis/emphysema, and tuberculosis) have revealed significant findings as to the manner in which alexithymia manifests itself and impacts on chronic respiratory disease. The present paper reviews the literature on alexithymia that has emanated from National Jewish Hospital and Research Center/National Asthma Center and raises questions for future research as regards alexithymia in chronic respiratory diseases.

Health and behaviour in preschool children

This study reviews the relationship between the health and behaviour of 870 preschool children reviewed over a 5-year period. Detailed information was collected at regular intervals on rates of upper and lower respiratory tract infections, ear infections, and other illnesses. The children were examined, and their behaviour was assessed using questionnaires. In addition, the mothers of the children were interviewed, and assessment was made of levels of maternal stress. Relationships are demonstrated between episodes of illness and different behaviour problems. Night waking, poor appetite, temper tantrums, difficulty in management, and the doctor's and mother's overall assessment of behaviour were all found to be correlated with recurrent minor illnesses. Relationships were also found between maternal stress and some of the behaviour variables. Attention is drawn to the well known association of stress with physical illness, and the importance of this relationship in the management of both infections and behaviour problems in the young child is discussed.

The Multiple Affect Adjective Check List: subscale intercorrelations from two independent studies

Found the MAACL, the Anxiety, Depression and Hostility subscales to be intercorrelated in two independent studies (N = 84), thus raising doubts about their validity as measures of separate affective states. It is suggested that the scores of the subscales may usefully be summed to produce a measure of general negative affect.

Alexithymia in chronic bronchitis/emphysema patients. Communication of subjective symptomatology

Affective, somatic, and collateral experiences of alexithymic and nonalexithymic patients to their chronic bronchitis/emphysema was analyzed in reference to 11 symptom categories of the Bronchitis/Emphysema Symptom Checklist. Unlike alexithymic asthmatics who tend to minimize their self-reports of physical and emotional difficulties during acute illness episodes, chronic bronchitis/emphysema alexithymics do not differ from nonalexithymics in their self-reports of physical and emotional difficulties.

Multidimensional analysis of the symptoms of chronic bronchitis and emphysema

Subjective symptoms and experiences were explored within a group of 146 severe, chronic bronchitis and emphysema patients. Eighty-nine symptoms and experiences, derived from initial interviews with 29 patients, were rated according to the frequency of occurrence during breathing difficulties. Key cluster analyses were used to derive a Bronchitis-Emphysema Symptom Checklist (BESC) measuring 11 symptom categories: Helplessness-Hopelessness, Decathexis, Fatigue, Poor Memory, Peripheral-Sensory Complaints, Dyspnea, Congestion, Sleep Difficulties, Irritability, Anxiety, and Alienation. The BESC symptom categories are highly reliable and the relationships among categories are stable across two subgroups of patients. The BESC provides one way to describe how patients cope with and experience chronic bronchitis and emphysema.

Symptoms and experiences in chronic bronchitis and emphysema

A heterogeneous group of 146 patients with chronic bronchitis and emphysema were asked to rate the frequency with which 89 symptoms and experiences occurred during their breathing difficulties. Normative values and the reported frequency of occurrence for the 11 symptom categories are presented. As expected, symptoms of dyspnea were the most frequently reported during breathing difficulties. In decreasing order, symptoms of dyspnea were followed by symptoms of fatigue, sleep disturbance, congestion, irritability, anxiety, decathexis, helplessness-hopelessness, poor memory, alienation. Separation of the patients into subgroups revealed that women reported more anxiety and helplessness-hopelessness than men. Younger patients reported more irritability and anxiety than older patients. Patients with mixed disease reported more dyspnea than those with chronic bronchitis or emphysema, although patients with emphysema reported more loss of interest in life than patients with chronic bronchitis. Self-ratings of functional incapacitation were clearly related to the symptom reports. Relationships among the symptom categories were discussed, as was the potential usefulness of symptom patterns in exploring coping styles in respiratory disease.

Effect of attitudes and beliefs on exercise tolerance in chronic bronchitis

In 50 patients with chronic bronchitis the relation was assessed between exercise tolerance and pulmonary function and psychological factors, including subjective perception of exertion, mood, general psychiatric disturbance, and the attitudes and beliefs held by patients concerning themselves, their illness, and its treatment. Ventilatory capacity was significantly correlated with but a poor predictor of exercise tolerance. Subjective perception of exertion was most closely correlated with exercise tolerance. The distance walked in a 12-minute exercise test was significantly correlated with measurements of mood and with several attitudes and beliefs. Attitudes and beliefs greatly outweighed measurements of mood and ventilatory capacity as components in a multiple regression predicting distance walked in 12 minutes. This method of psychological assessment emphasises the importance of attitudes and beliefs in respiratory disability and may have useful applications in rehabilitation in other chronic diseases.

Psychological factors contributing to disproportionate disability in chronic bronchitis

Disability in fifty chronic bronchitis patients was measured by the twelve-minute walking test. The degree of disability was examined in relation to lung function and a measure of disproportion of disability was derived. This measure was significantly related to a number of attitude measures, in particular the patients' beliefs about treatment and treatment outcome, but was not strongly related to psychiatric disturbance on the GHQ. However, high levels of psychiatric disturbance were found within the overall sample.

Follow-up study of disability among elderly patients discharged from hospital with exacerbations of chronic bronchitis

Chronic bronchitis is a common reason for admitting an old person to hospital. Government statistics measure the impact of admission only in terms of mortality. A follow-up study of disability among the elderly admitted to hospital wih an exacerbation of chronic bronchitis is described. One month after discharge about 30% of patients were unable to walk as far on the flat or climb as many steps as they did before admission and 90% were unable to do all previous household chores or social activities. After a further two months, although the proportion of patients unable to do all previous household chores or social activities had decreased significantly the proportion with restricted ambulation or ability to climb stairs had not decreased. The proportion of patients admitting to anxiety or depression and being dissatisfied with their progress also remained high. We conclude that there is a need for graduated rehabilitation programmes, which have been shown to increase the walking distance of elderly bronchitics, to be extended to cover all aspects of disability and for home rehabilitation to become an integral part of the care of all elderly bronchitics discharged from hospital.

The prognostic significance of psychological factors in the management of chronic bronchitis

Eighty-three chronic obstructive bronchitic patients were psychologically assessed before being randomly allocated to 1 of 3 management regimes. The following measures were taken: psychiatric disturbance, personality, social-desirability response set, vocabulary, expectations about treatment, attitudes and beliefs about bronchitis, effect of patient's bronchitis on the family, work, self, physical exercise, smoking, and general health. Outcome was assessed after one month and again one year later, and the measures included physiological tests of lung functioning, an exercise tolerance test, reported symptoms, time off work, drop-out, and death. Contrary to expectations, it was found that psychological variables had some prognostic significance for outcome assessed by medical measures of illness severity. More important was the finding that, in bronchitics under retiring age, weeks off work during the year of the study could be predicted by psychological variables but not by physiological measures of illness severity.

Physiotherapy and intermittent positive-pressure ventilation of chronic bronchitis

Patients aged over 45 admitted to hospital with exacerbations of chronic bronchitis alone or in association with cor pulmonale, pneumonia, or respiratory failure were placed in one of three groups (men with hypoxia, men without hypoxia, and women). Patients within these groups were then randomly allocated to receive either standard drug treatment alone or standard drug treatment plus intermittent positive-pressure ventilation (IPPV). No significant differences occurred between the controls and patients receiving physiotherapy and IPPV in any group. We conclude that when a patient with chronic bronchitis and respiratory failure is deteriorating emphasis should be on correct diagnosis, fluid electrolyte balance, and nutrition together with oxygen treatment when necessary, rather than on additional physiotherapy.

Some psychological concomitants of chronic bronchitis

Thirty chronic bronchitic patients with severe airways obstruction were individually matched with non-bronchitic controls from the general population. The 2 groups were compared using the Zung Self-Rating Depression Scale (SDS) and the General Health Questionnaire (GHQ) to assess non-psychotic psychiatric disturbance, the Eysenck Personality Inventory (EPI) to assess personality traits, and the Marlowe-Crowne (M-C) scale plus the L (Lie) scale of the EPI to assess social-desirability response set. Chronic bronchitic patients were both more psychiatrically disturbed and more neurotic in personality than were their matched controls; but there were no differences between the 2 groups on the personality trait of extraversion or on measure of social desirability response set. The results are discussed in the context of both chronic bronchitis specifically and chronic illness in general, and future investigations are proposed.