Journal of Chronic Diseases Impact Factor & Information

Publisher: Elsevier

Journal description

Current impact factor: 0.00

Impact Factor Rankings

Additional details

5-year impact 0.00
Cited half-life 0.00
Immediacy index 0.00
Eigenfactor 0.00
Article influence 0.00
Website Journal of Chronic Diseases website
Other titles Journal of chronic diseases
ISSN 0021-9681
OCLC 1754500
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

Elsevier

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
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    • Pre-print allowed on any website or open access repository
    • Voluntary deposit by author of authors post-print allowed on authors' personal website, arXiv.org or institutions open scholarly website including Institutional Repository, without embargo, where there is not a policy or mandate
    • Deposit due to Funding Body, Institutional and Governmental policy or mandate only allowed where separate agreement between repository and the publisher exists.
    • Permitted deposit due to Funding Body, Institutional and Governmental policy or mandate, may be required to comply with embargo periods of 12 months to 48 months .
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    • Publisher's version/PDF cannot be used
    • Articles in some journals can be made Open Access on payment of additional charge
    • NIH Authors articles will be submitted to PubMed Central after 12 months
    • Publisher last contacted on 18/10/2013
  • Classification
    ​ green

Publications in this journal

  • Journal of Chronic Diseases 02/1987; 40(4):365-6. DOI:10.1016/0021-9681(87)90055-5
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    ABSTRACT: Hospital admissions for herniated lumbar intervertebral disc or sciatica were followed up over a period of 11 years in 57,000 men and women who had participated in medical check-ups in various parts of Finland. Information on their hospitalizations after the baseline examination was obtained by record linkage to the National Hospital Discharge Register. To identify factors predicting back diseases, four controls matched individually for sex, age and place of residence were chosen for each of the 592 incidence cases who were free from severe back trouble and aged 20-59 at entry. Low or intermediate social class and blue-collar occupations in services or industry in men and symptoms suggesting psychological distress in women proved significant predictors for hospitalization due to herniated lumbar disc or sciatica. An association with the risk was suggested for smoking or chronic cough in men and parity in women. Marital status or leisure time physical activity were not predictive of herniated lumbar intervertebral disc or sciatica.
    Journal of Chronic Diseases 02/1987; 40(3):251-8. DOI:10.1016/0021-9681(87)90161-5
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    ABSTRACT: Accurate and reliable measurement of blood pressure is essential in the determination of early hypertensive disease. Multiple blood pressure measures were determined by well trained field observers on a large number of children representing a total pediatric community. Changes in children's blood pressure levels with multiple measurements, as well as differences between field observers, were examined. A random effects analysis of variance model was used to determine specific contributors to blood pressure variability in an epidemiologic survey of children. Observer differences were found to be the largest preventable contributor to blood pressure variation. In addition, systolic blood pressure levels decreased approx. 2.5 mmHg from the first to the third blood pressure station. More than 86% of systolic blood pressure readings and 90% of diastolic blood pressure readings by two different observers on the same child were within 15 mmHg. These data emphasize the importance of both adequate training of field observers and the use of replicate blood pressure measurements by multiple observers to determine blood pressure levels accurately in an epidemiologic survey.
    Journal of Chronic Diseases 02/1987; 40(1-40):83-89. DOI:10.1016/0021-9681(87)90099-3
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    ABSTRACT: The therapeutic efficacy of critical care units-whether they do more good than harm and for whom--has not been established, except for patients who are admitted for life-sustaining interventions, such as mechanical support of ventilation. However, most patients are admitted for observation, and to facilitate intervention if deterioration occurs or complications develop. The objective of this study was to determine whether direct admission to critical care units reduced mortality rates. The population under study consisted of all 604 patients admitted to the medical service during a one month period. At the time of admission, the responsible residents rated patients as to how sick and stable they were. These ratings of illness severity and stability have been shown to be the most significant predictors of in-hospital mortality and morbidity, respectively; they were employed to stratify the patients prognostically. The first analysis utilized the entire cohort of 604 patients. After patients who would have been ineligible for entry into a trial were removed, direct admission to the unit was associated with a reduced mortality in only one group of patients: the unstable, moderately ill (p less than 0.05). "Unstable, severely ill" patients had high mortality rates when admitted to the floor or units, and stable patients (mildly or moderately ill) did equally well when admitted to either location. A further analysis revealed a possible explanation for these findings. Among the unstable, moderately ill patients, the rate of deterioration of pre-existing problems was significantly lower among patients directly admitted to the unit (p less than 0.05), whereas the rate of new complications did not differ.(ABSTRACT TRUNCATED AT 250 WORDS)
    Journal of Chronic Diseases 02/1987; 40(1):31-9. DOI:10.1016/0021-9681(87)90094-4
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    ABSTRACT: This study investigated the degree of adherence to different aspects of the diabetic treatment regimen (insulin injections, glucose testing, diet, and exercise), the consistency of adherence across different regimen areas, and relationships between adherence and glycemic control. A predominantly adult community sample of 93 insulin dependent outpatients participated in the prospective study that involved two series of home interviews separated by a 6-month interval. Multiple measures of adherence (e.g. self-report, interview/recall, self-monitoring, and objective indices) were collected for each regimen area. Results indicated that the degree of adherence was higher for medication taking and glucose testing than for regimen tasks requiring greater lifestyle modifications such as diet and exercise; there were few strong relationships between subjects' adherence to one area of the regimen and the extent to which they adhered to other regimen tasks; and no clear relationship between adherence and glycemic control could be demonstrated through either bivariate or multivariate analyses. It is recommended that regimen adherence be considered in the context of other factors that may influence glycemic control (e.g. stress, individual metabolic factors, appropriateness of regimen prescriptions) rather than assuming a one-to-one relationship between adherence and control.
    Journal of Chronic Diseases 02/1987; 40(5):399-412. DOI:10.1016/0021-9681(87)90173-1
  • Journal of Chronic Diseases 02/1987; 40(4):367-8. DOI:10.1016/0021-9681(87)90057-9
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    ABSTRACT: There is an increasing interest in the use of quality of life methods to assess the benefits of treatment in cardiovascular disease. When selecting dimensions of quality of life and the instruments to measure these dimensions, the key issue is the detection of a response to treatment during the trial. The sensitivity of a variety of instruments appropriate to hypertension, angina and congestive heart failure is reviewed. Quality of life should be assessed in double blind randomized controlled trials. A Health Index must be included to take into account any mortality and morbidity occurring during the trial. Data are presented on the measurement of quality of life in patients taking placebo prior to entering trials of antihypertensive treatment. The variation with age, sex and nationality is discussed. Also reported are the results arising from observer bias in a single-blind trial.
    Journal of Chronic Diseases 02/1987; 40(6):557-69. DOI:10.1016/0021-9681(87)90014-2
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    ABSTRACT: The Framingham Heart Study has been the foundation upon which several national policies regarding risk factors for coronary heart disease mortality are based. The NHANES I Epidemiologic Followup Study is the first national cohort study based upon a comprehensive medical examination of a probability sample of United States adults. The average follow-up time was 10 years. This study afforded an opportunity to evaluate the generalizability of the Framingham risk model, using systolic blood pressure, total cholesterol, and cigarette smoking, to the U.S. population with respect to predicting death from coronary heart disease. The Framingham model predicts remarkably well for this national sample. The major risk factors for coronary heart disease mortality described in previous Framingham analyses are applicable to the United States white adult population.
    Journal of Chronic Diseases 02/1987; 40(8):775-84. DOI:10.1016/0021-9681(87)90129-9
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    ABSTRACT: The paradigm of the randomized clinical trial (RCT) is proposed as a heuristic that can serve as a unified approach to guide the design not just of cause-effect studies of therapy, but also of studies of the etiology of disease. Three themes are developed in detail: that variability in the scientific paradigm of the randomized trial results in a wide range of techniques and methods being employed for the RCT, and that this extensive variability in clinical trial methods contributes substantially to the occurrence of conflicting trial results; that the scientific validity of observational surrogates for the RCT could be enhanced if investigators designed observational studies by incorporating the principles inherent in the RCT; and that there are two distinctive and competing strategies for designing case-control studies. The traditional strategy views case-control designs as statistical acts of sampling for cases and controls, but ignores the scientific reasoning that should guide the performance of case-control research. The alternative strategy requires that case-control studies adhere to the principles inherent in the RCT.
    Journal of Chronic Diseases 02/1987; 40(1):91-9. DOI:10.1016/0021-9681(87)90100-7
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    ABSTRACT: Physicians use the concept of stability to estimate the likelihood that a patient will deteriorate during a hospitalization. To determine whether physicians can accurately predict a patient's risk of morbidity, 603 patients admitted to the medical service during a one month period were rated prospectively as to how stable they were. Overall, 15% of patients had deterioration of already compromised systems, while 17% had new complications, such as sepsis. Eight percent of patients had both. Twelve percent of stable patients experienced morbidity; 39% of the somewhat unstable and 61% of the most unstable. When all of the demographic and clinical variables were taken into account including the reason for admission and comorbid diseases, the residents' estimates of the patient's stability was the most significant predictor of morbidity (p less than 0.001). The judgment that a patient was stable had an 87% negative predictive accuracy, while the judgment unstable had a 46% positive predictive accuracy.
    Journal of Chronic Diseases 02/1987; 40(7):705-12. DOI:10.1016/0021-9681(87)90107-X
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    ABSTRACT: Acute lymphocytic leukemia (ALL) occurring in pediatric and juvenile patients of nine U.S.A. locations during 1973 through 1980 was investigated by epidemiologic methodology. Time series periodic regression analysis of the monthly cumulative risk for ages 0-19 years revealed evidence of trimodal periodicity at seven of the nine locations tested. Combined analyses revealed a significant effect of latitude in causing asynchrony of the trimodal patterns observed. The average risk maxima occurred in April, August, and December for U.S.A. locations with latitude above 40 degrees (Seattle, Nebraska, Iowa, Detroit, and Connecticut), and in February, July, and October for other locations (San Francisco, Utah, New Mexico, and Atlanta). Because periodic regression analysis is a complex method, independent validation tests were performed to supplement the original results. Here, the best symmetric trimodal sine curve model of each location was utilized to predict the average pattern among the remaining locations of similar latitude. These validation tests supported the existence of similar trimodal patterns for all of the southern locations, and all of the northern locations except Connecticut. The observed peaks in monthly ALL risk coincide with seasonal elevations in the rates of allergenic and infectious diseases, elements of which are capable of promoting lymphocytic proliferation and transformation. Annual disease rates were significantly lower in populations with a high proportion of Blacks or American Indians compared to predominantly Caucasian populations. The possibility that seasonal factors (environmental allergens and/or infectious agents) promote leukomogenesis via indirect mechanisms is briefly discussed.
    Journal of Chronic Diseases 02/1987; 40(10):915-23. DOI:10.1016/0021-9681(87)90140-8
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    ABSTRACT: Clinical trials are commonly performed in surgery to assess the efficacy of one or more treatments. Many therapies result in only partial or temporary improvement, rather than cure. Others sharply affect the quality of patients' lives or of their deaths. For most interventions, it is important to document effects on quality of life as well as morbidity and mortality rates. Yet, a review of the literature reveals that very few surgical trials consider quality of life variables as outcome measures. Surgical investigators in areas like cancer, inflammatory bowel disease, end stage renal disease, and cardiac disease have examined quality of life issues extensively using a variety of scales and indices. However, most studies on quality of life are hampered by poor design and inadequate methods of assessment. Failure to evaluate quality of life variables prevents the recognition and full use of potentially beneficial therapies and the rejection of potentially harmful ones.
    Journal of Chronic Diseases 02/1987; 40(6-40):513-522. DOI:10.1016/0021-9681(87)90008-7
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    ABSTRACT: This paper discusses the advantages and disadvantages of using administrative data for longitudinal research, focusing on loss to follow-up. Comparisons between research relying on primary data collection and that using data bases are made. After development of a suitable framework, follow-up in several well-known projects based on primary data collection (the Seven Countries project on coronary heart disease, the Massachusetts research on long-term care and the Pittsburgh clinical trial of tonsillectomy) is compared with follow-up using the Health Services Commission data base in Manitoba, Canada. Overall follow-up in the Manitoba research compares favorably with participation and follow-up rates in other studies based on primary data collection. Initial nonresponse and nonlocation are major problems with studies using primary data; failure to locate earlier respondents in subsequent waves results in a wide range of overall response rates. Data bases do not require researchers to contact individuals and hence follow-up is simplified. Eight year follow-up rates in the Manitoba data base are almost always over 80% and often over 90%. Because records can be flexibly summarized for each individual over time, data bases facilitate certain types of longitudinal studies which would be difficult, if not impossible, to perform using other methodologies. If the desired data are available and recorded with acceptable accuracy, administrative data banks hold considerable promise for the health care researcher.
    Journal of Chronic Diseases 02/1987; 40(1):41-9. DOI:10.1016/0021-9681(87)90095-6
  • Journal of Chronic Diseases 02/1987; 40(9):905-6. DOI:10.1016/0021-9681(87)90191-3
  • Journal of Chronic Diseases 02/1987; 40(6):459-63. DOI:10.1016/0021-9681(87)90001-4
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    ABSTRACT: The accuracy of routinely collected mortality data for ischemic heart disease (IHD) as indicators of death from acute myocardial infarction (AMI) was assessed in ages 25-64 years, according to the WHO criteria defined in 1983. Cases were identified from computer records (linked for individuals) of all death certificates and hospital discharges in Western Australia between 1971 and 1982. Where the official cause was IHD about 90% of deaths fulfilled the WHO criteria for definite or possible AMI. Up to 10% of fatal cases of definite or possible AMI were coded to other causes in the official death statistics, however it appeared that variations in this figure with changes in coding practices could cause appreciable bias in the estimation of secular trends in IHD mortality. This problem could largely be overcome by reviewing fatal events where the death certificate was coded to one of a limited number of other ICD rubrics.
    Journal of Chronic Diseases 02/1987; 40(7):661-9. DOI:10.1016/0021-9681(87)90102-0