Abstract:
STUDY OBJECTIVE:To test the hypothesis that work as a respiratory therapist is associated with an increased risk of developing asthma. DESIGN:Cross-sectional questionnaire study comparing respiratory therapists with controls (physical therapists and radiologic technologists). Subsequent validation of reported asthma with methacholine challenge studies. SUBJECTS:All respiratory therapists and physical therapists and a random 50% sample of radiologic technologists working in the state of Rhode Island as of June 1986. METHODS:All subjects received a mail questionnaire with questions about the presence or absence of asthma, time of onset, and important covariates. Responses were analyzed for all subjects, and again after excluding those subjects with pre-existing asthma. Subjects who reported physician-diagnosed asthma were asked to have methacholine challenge testing. RESULTS:Respondents included 194 respiratory therapists (response rate, 69.5%) and 517 controls (response rate, 75.3%). After excluding respiratory therapists from the hospital at which the hypothesis was generated, there were 34 respiratory therapists (18.7%) and 30 controls (5.8%) reporting physician-diagnosed asthma. After controlling for age, smoking status, family history, atopic history, and other covariates using logistic regression, respiratory therapy carried an odds ratio of 3.2 (95% CI, 1.9 to 5.5). With analysis restricted to those who developed asthma after entering their profession, the odds ratio for respiratory therapy was 4.6 (95% CI, 2.0 to 10.4). In the validation study, 10 of 14 respiratory therapists (71%) and 6 of 10 controls (60%) had evidence of bronchial hyperreactivity. CONCLUSIONS:These results suggest a previously unrecognized excess of asthma in respiratory therapists. The excess develops after entry into the profession, and does not appear to be explained by confounding, information bias, or selection bias.
journal_name
Ann Intern Medjournal_title
Annals of internal medicineauthors
Kern DG,Frumkin Hdoi
10.7326/0003-4819-110-10-767subject
Has Abstractpub_date
1989-05-15 00:00:00pages
767-73issue
10eissn
0003-4819issn
1539-3704journal_volume
110pub_type
杂志文章abstract::The indications for treating patients with subclinical hypothyroidism (normal serum thyroxine and free thyroxine levels, but elevated serum thyrotrophin levels) are poorly defined. In this study, 33 patients with subclinical hypothyroidism were randomly assigned in a double-blind manner to receive placebo or L-thyroxi...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.7326/0003-4819-101-1-18
更新日期:1984-07-01 00:00:00
abstract:BACKGROUND:Combining endoscopic therapy and beta-blockers may improve outcomes in patients with cirrhosis and bleeding esophageal varices. PURPOSE:To assess whether a combination of endoscopic and drug therapy prevents overall and variceal rebleeding and improves survival better than either therapy alone. DATA SOURCE...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析
doi:10.7326/0003-4819-149-2-200807150-00007
更新日期:2008-07-15 00:00:00
abstract:STUDY OBJECTIVE:To critically assess original studies evaluating the role of preoperative pulmonary function testing in predicting postoperative outcomes. DESIGN:MEDLINE search of English-language articles from 1966 to 1987 using the following medical subjects headings respiratory function tests, lung, lung diseases, ...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析
doi:10.7326/0003-4819-112-10-763
更新日期:1990-05-15 00:00:00
abstract::Past efforts to reverse or limit the effects of acute stroke have been largely unsuccessful, in part because of the inability to evaluate and treat most patients soon after stroke onset. One important factor in the delay of treatment has been the nihilistic attitude of medical personnel, including physicians, toward t...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:
更新日期:1995-04-15 00:00:00
abstract:BACKGROUND:The coronavirus disease 2019 (COVID-19) pandemic continues to surge in the United States and globally. OBJECTIVE:To describe the epidemiology of COVID-19-related critical illness, including trends in outcomes and care delivery. DESIGN:Single-health system, multihospital retrospective cohort study. SETTING...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/M20-5327
更新日期:2021-01-19 00:00:00
abstract:PURPOSE:To examine the cost-effectiveness of test-treatment strategies for patients suspected of having Lyme disease. DATA SOURCES:The medical literature was searched for information on outcomes and costs. Expert opinion was sought for information on utilities. STUDY SELECTION:Articles that described patient populati...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-128-1-199801010-00007
更新日期:1998-01-01 00:00:00
abstract:Background:Probiotics, prebiotics, and synbiotics are used increasingly, although the safety and potential harms of these interventions are poorly understood. Purpose:To examine how harms-related information is reported in publications of randomized controlled trials (RCTs) of probiotics, prebiotics, and synbiotics. ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/M18-0343
更新日期:2018-08-21 00:00:00
abstract::We compared the efficacy of orally administered ampicillin, 2 g/d, with that of trimethoprim-sulfamethoxazole, 320 mg/d-1600 mg/d, given for 2 or 6 weeks for outpatient management of acute uncomplicated renal infection in women. Of 98 women participating in the trial, 60 had renal infections with susceptible strains, ...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.7326/0003-4819-106-3-341
更新日期:1987-03-01 00:00:00
abstract:BACKGROUND:Markers are needed for assessing response to antiretroviral therapy over time. The CD4+ lymphocyte count is one such surrogate, but it is relatively weak. OBJECTIVE:To assess the association of changes in plasma human immunodeficiency virus (HIV) RNA level and CD4+ lymphocyte count with progression to the a...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.7326/0003-4819-126-12-199706150-00002
更新日期:1997-06-15 00:00:00
abstract:BACKGROUND:The news media are often criticized for exaggerated coverage of weak science. Press releases, a source of information for many journalists, might be a source of those exaggerations. OBJECTIVE:To characterize research press releases from academic medical centers. DESIGN:Content analysis. SETTING:Press rele...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-150-9-200905050-00007
更新日期:2009-05-05 00:00:00
abstract:DESCRIPTION:Update of the 2009 U.S. Preventive Services Task Force (USPSTF) recommendation on screening for breast cancer. METHODS:The USPSTF reviewed the evidence on the following: effectiveness of breast cancer screening in reducing breast cancer-specific and all-cause mortality, as well as the incidence of advanced...
journal_title:Annals of internal medicine
pub_type: 杂志文章,实务指引
doi:10.7326/M15-2886
更新日期:2016-02-16 00:00:00
abstract::Endocarditis is a relatively frequent infection in intravenous drug users. We compared features in the cases of 102 patients with those in intravenous drug users with other causes of fever to identify risk factors predictive of endocarditis. Logistic regression analysis showed cocaine use to be strongly associated wit...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-106-6-833
更新日期:1987-06-01 00:00:00
abstract::Although the efficacy of hepatitis vaccine is well documented, the duration of immunity of healthy adults after vaccination is unknown. We studied 245 hospital employees 3 years after primary vaccination with hepatitis B vaccine to determine the prevalence of immunity indicated by levels of antibody to hepatitis B sur...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-108-2-185
更新日期:1988-02-01 00:00:00
abstract:PURPOSE:To review prospective epidemiologic studies and randomized trials regarding the role of antioxidant vitamins (vitamins E and C and beta-carotene) in the prevention of cardiovascular disease, with emphasis on differences in results obtained by these two types of studies. DATA SOURCES:Computerized and manual sea...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-123-11-199512010-00009
更新日期:1995-12-01 00:00:00
abstract::Nineteen patients with advanced refractory metastatic breast cancer no longer responsive to chemotherapy were treated in the first phase II efficacy trial of recombinant leukocyte A interferon (IFL-rA), a highly purified single molecular species of alpha interferon prepared by recombinant DNA methods. Patients receive...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章
doi:10.7326/0003-4819-98-5-598
更新日期:1983-05-01 00:00:00
abstract::We ascertained the incidence of hypercalcemia in 79 consecutive patients with active pulmonary tuberculosis and a control group of 79 patients with chronic obstructive pulmonary disease. Twenty-two patients developed hypercalcemia (serum calcium greater than 10.5 mg/dl) within 4 to 16 weeks after initiation of chemoth...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-90-3-324
更新日期:1979-03-01 00:00:00
abstract:BACKGROUND:Increased prevalence of adolescent obesity requires effective treatment options beyond behavior therapy. OBJECTIVE:To see whether sibutramine reduced weight more than placebo in obese adolescents who were receiving a behavior therapy program. DESIGN:12-month, 3:1 randomized, double-blind trial conducted fr...
journal_title:Annals of internal medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.7326/0003-4819-145-2-200607180-00005
更新日期:2006-07-18 00:00:00
abstract:PURPOSE:To review available information on the epidemiology, cause, diagnosis, prognosis, and treatment of acute myocardial infarction during pregnancy or in the early postpartum period and to develop guidelines for the management of this condition. DATA SOURCES:MEDLINE and Index Medicus searches and a manual search o...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-125-9-199611010-00009
更新日期:1996-11-01 00:00:00
abstract:BACKGROUND:Menopausal hormone therapy to prevent chronic conditions is currently not recommended because of its adverse effects. PURPOSE:To update evidence about the effectiveness of hormone therapy in reducing risk for chronic conditions and adverse effects, and to examine whether outcomes vary among women in differe...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-157-2-201207170-00466
更新日期:2012-07-17 00:00:00
abstract::The clinical implications of newly acquired left bundle-branch block (LBBB) were examined prospectively in the Framingham Study population. During 18 years of observation 55 people developed LBBB. The mean age at the onset of LBBB was 62; LBBB occurred largely in people with antecedent hypertension, cardiac enlargemen...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章
doi:10.7326/0003-4819-90-3-303
更新日期:1979-03-01 00:00:00
abstract::Arteriohepatic dysplasia (Alagille's syndrome) is presumed to be one of the familial intrahepatic cholestatic syndromes, all of which present with neonatal jaundice or failure to thrive, or both. We report the findings in five patients with this syndrome, four of whom have been followed into adulthood. In addition to ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-91-4-520
更新日期:1979-10-01 00:00:00
abstract::Protein S activity may be compromised in patients with the nephrotic syndrome and contribute to a thrombotic diathesis. Protein S is found in two forms in plasma as free and functionally active protein S, and complexed to C4b-binding protein. When compared with controls, patients with nephrotic syndrome had reduced fu...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-107-1-42
更新日期:1987-07-01 00:00:00
abstract:Background:More than half of enrollees in the U.S. Department of Veterans Affairs (VA) are also covered by Medicare and can choose to receive their prescriptions from VA or from Medicare-participating providers. Such dual-system care may lead to unsafe opioid use if providers in these 2 systems do not coordinate care o...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/M18-2574
更新日期:2019-04-02 00:00:00
abstract:BACKGROUND:Recent evidence shows that arthroscopic partial meniscectomy (APM) offers no benefit over conservative treatment of patients with a degenerative meniscus tear. However, patients who report mechanical symptoms (sensations of knee catching or locking) may benefit from APM. OBJECTIVE:To assess whether APM impr...
journal_title:Annals of internal medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.7326/M15-0899
更新日期:2016-04-05 00:00:00
abstract::Recent reviews have suggested a higher frequency of the lupus anticoagulant or related antiphospholipid antibodies in patients with systemic lupus erythematosus (21% to 65%) than was found in earlier studies (6% to 18%). In our study of 60 consecutive patients, we found the frequency of the lupus anticoagulant by Russ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-106-4-524
更新日期:1987-04-01 00:00:00
abstract::We report a case of combined idiopathic immune neutropenia and immune thrombocytopenia (thromboneutropenia). Therapy with prednisone was ineffective. Treatment with vincristine raised the patient's platelet count but did not increase the neutrophil count. Splenectomy led to a prompt complete remission. Using radioimmu...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-93-5-704
更新日期:1980-11-01 00:00:00
abstract:BACKGROUND:An effective national biosurveillance system expedites outbreak recognition and facilitates response coordination at the federal, state, and local levels. The BioSense system, used at the Centers for Disease Control and Prevention, incorporates chief complaints but not data from the whole encounter note into...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-156-1-201201030-00003
更新日期:2012-01-03 00:00:00
abstract:BACKGROUND:Screening for hereditary hemochromatosis is traditionally done by using serum iron studies. However, mutation analysis of the hemochromatosis-associated HFE gene has recently become available. OBJECTIVE:To compare the cost-effectiveness of no screening with four screening strategies that incorporate HFE gen...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-132-4-200002150-00003
更新日期:2000-02-15 00:00:00
abstract:BACKGROUND:The long-term risk for fatal pulmonary embolism (PE) after treatment of venous thromboembolism (VTE) may be an important factor in the decision to discontinue this treatment. OBJECTIVE:To provide reliable and precise estimates of the annual risk for fatal PE and the case-fatality rate of disease recurrence ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-147-11-200712040-00007
更新日期:2007-12-04 00:00:00
abstract:BACKGROUND:Nurse care management programs for patients with chronic illness have been shown to be safe and effective. OBJECTIVE:To determine whether a telephone-mediated nurse care management program for heart failure reduced the rate of rehospitalization for heart failure and for all causes over a 1-year period. DES...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.7326/0003-4819-141-8-200410190-00008
更新日期:2004-10-19 00:00:00