The qualification period.

PubWeight™: 2.33‹?› | Rank: Top 2%

🔗 View Article (PMID 2037850)

Published in J Clin Epidemiol on January 01, 1991

Authors

P Knipschild1, P Leffers, A R Feinstein

Author Affiliations

1: Department of Epidemiology/Health Care Research, Rijksuniversiteit Limburg, Maastricht, The Netherlands.

Articles by these authors

(truncated to the top 100)

A simulation study of the number of events per variable in logistic regression analysis. J Clin Epidemiol (1996) 20.25

Problems of spectrum and bias in evaluating the efficacy of diagnostic tests. N Engl J Med (1978) 11.42

A critical appraisal of the quality of quality-of-life measurements. JAMA (1994) 9.10

The Will Rogers phenomenon. Stage migration and new diagnostic techniques as a source of misleading statistics for survival in cancer. N Engl J Med (1985) 8.55

High agreement but low kappa: II. Resolving the paradoxes. J Clin Epidemiol (1990) 8.28

Clinical biostatistics. LIV. The biostatistics of concordance. Clin Pharmacol Ther (1981) 7.33

Importance of events per independent variable in proportional hazards regression analysis. II. Accuracy and precision of regression estimates. J Clin Epidemiol (1995) 6.94

The risk of determining risk with multivariable models. Ann Intern Med (1993) 6.45

Variability in radiologists' interpretations of mammograms. N Engl J Med (1994) 5.96

Use of methodological standards in diagnostic test research. Getting better but still not good. JAMA (1995) 5.94

The measurement of dyspnea. Contents, interobserver agreement, and physiologic correlates of two new clinical indexes. Chest (1984) 5.19

Spectrum bias in the evaluation of diagnostic tests: lessons from the rapid dipstick test for urinary tract infection. Ann Intern Med (1992) 3.64

Academic calculations versus clinical judgments: practicing physicians' use of quantitative measures of test accuracy. Am J Med (1998) 3.36

Problems of comorbidity in mortality after prostatectomy. JAMA (1992) 3.27

Clinical epidemiological quality in molecular genetic research: the need for methodological standards. JAMA (1999) 3.07

An algorithm for the operational assessment of adverse drug reactions. I. Background, description, and instructions for use. JAMA (1979) 3.03

The importance of classifying initial co-morbidity in evaluating the outcome of diabetes mellitus. J Chronic Dis (1974) 3.01

The influence of referral patterns on the characteristics of diagnostic tests. J Clin Epidemiol (1992) 2.66

The BCG controversy. A methodological and statistical reappraisal. JAMA (1983) 2.60

Clinical biostatistics. XXXVII. Demeaned errors, confidence games, nonplussed minuses, inefficient coefficients, and other statistical disruptions of scientific communication. Clin Pharmacol Ther (1976) 2.53

An analysis of diagnostic reasoning. 3. The construction of clinical algorithms. Yale J Biol Med (1974) 2.44

Context bias. A problem in diagnostic radiology. JAMA (1996) 2.42

Scientific and clinical problems in indexes of functional disability. Ann Intern Med (1986) 2.41

Importance of events per independent variable in proportional hazards analysis. I. Background, goals, and general strategy. J Clin Epidemiol (1995) 2.32

A simple procedure for general screening for functional disability in elderly patients. Ann Intern Med (1990) 2.32

Clinical biostatistics. 8. An analytic appraisal of the University Group Diabetes Program (UGDP) study. Clin Pharmacol Ther (1971) 2.28

Claims of equivalence in medical research: are they supported by the evidence? Ann Intern Med (2000) 2.27

Coding ordinal independent variables in multiple regression analyses. Am J Epidemiol (1987) 2.15

A new prognostic staging system for the acquired immunodeficiency syndrome. N Engl J Med (1989) 2.10

Methodologic standards and contradictory results in case-control research. Am J Med (1979) 2.09

Clinical biostatistics. XLIV. A survey of the research architecture used for publications in general medical journals. Clin Pharmacol Ther (1978) 2.07

T. Duckett Jones Memorial Lecture. The Jones criteria and the challenges of clinimetrics. Circulation (1982) 2.06

Clinical biostatistics. XLI. Hard science, soft data, and the challenges of choosing clinical variables in research. Clin Pharmacol Ther (1977) 2.04

A collection of 56 topics with contradictory results in case-control research. Int J Epidemiol (1988) 2.02

The impact of ethnicity, family income, and parental education on children's health and use of health services. Am J Public Health (1999) 2.02

A new clinical prognostic staging system for acute pancreatitis. Am J Med (1993) 2.02

The 'chagrin factor' and qualitative decision analysis. Arch Intern Med (1985) 1.94

Post-menopausal oestrogens protect against fractures of hip and distal radius. A case-control study. Lancet (1979) 1.92

An additional basic science for clinical medicine: II. The limitations of randomized trials. Ann Intern Med (1983) 1.87

Clinical biostatistics. XXV. A survey of the statistical procedures in general medical journals. Clin Pharmacol Ther (1974) 1.87

Double standards, scientific methods, and epidemiologic research. N Engl J Med (1982) 1.81

Clinical biostatistics. XXXIX. The haze of Bayes, the aerial palaces of decision analysis, and the computerized Ouija board. Clin Pharmacol Ther (1977) 1.80

Stereotactic treatment of intracerebral hematoma by means of a plasminogen activator: a multicenter randomized controlled trial (SICHPA). Stroke (2003) 1.76

An algorithm for the operational assessment of adverse drug reactions. II. Demonstration of reproducibility and validity. JAMA (1979) 1.65

Indexes and boundaries for "quantitative significance" in statistical decisions. J Clin Epidemiol (1990) 1.63

Measurement of lower limb alignment using long radiographs. J Bone Joint Surg Br (1991) 1.58

Current problems and future challenges in randomized clinical trials. Circulation (1984) 1.57

Shoulder disability questionnaire design and responsiveness of a functional status measure. J Clin Epidemiol (2000) 1.53

An analysis of Berkson's bias in case-control studies. J Chronic Dis (1986) 1.53

Clinical biostatistics XXXI. On the sensitivity, specificity, and discrimination of diagnostic tests. Clin Pharmacol Ther (1975) 1.52

Observer variability in the histopathologic diagnosis of lung cancer. Am Rev Respir Dis (1970) 1.51

The problems of the "problem-oriented medical record". Ann Intern Med (1973) 1.50

Complications of peripheral arteriography: a new system to identify patients at increased risk. J Vasc Surg (1995) 1.50

Clinical biostatistics. XX. The epidemiologic trohoc, the ablative risk ratio, and "retrospective" research. Clin Pharmacol Ther (1973) 1.50

The role of diagnostic inconsistency in changing rates of occurrence for coronary heart disease. J Clin Epidemiol (1992) 1.50

On white-coat effects and the electronic monitoring of compliance. Arch Intern Med (1990) 1.48

Joseph Goldberger: an unsung hero of American clinical epidemiology. Ann Intern Med (1994) 1.47

A bibliography of publications on observer variability (final installment). J Clin Epidemiol (1992) 1.47

An analysis of diagnostic reasoning. I. The domains and disorders of clinical macrobiology. Yale J Biol Med (1973) 1.47

Clinical utility of endoscopic retrograde cholangiopancreatography. Gastrointest Endosc (1997) 1.45

Bootstraps and jackknives: new, computer-intensive statistical tools that require no mathematical theories. J Investig Med (1998) 1.43

The validity of urine examination for urinary tract infections in daily practice. Fam Pract (1995) 1.43

An additional basic science for clinical medicine: IV. The development of clinimetrics. Ann Intern Med (1983) 1.43

Discontinuation of antistreptococcal prophylaxis. A double-blind study in rheumatic patients free of heart disease. JAMA (1966) 1.42

A critique of methodology in studies of anticoagulant therapy for acute myocardial infarction. N Engl J Med (1969) 1.42

The problem of "protopathic bias" in case-control studies. Am J Med (1980) 1.41

On exorcizing the ghost of Gauss and the curse of Kelvin. MD Comput (1992) 1.39

[No uniformity in radiodiagnosis and advice by Dutch neurologists in patients with minor brain injuries]. Ned Tijdschr Geneeskd (1996) 1.39

Coffee and pancreatic cancer. The problems of etiologic science and epidemiologic case-control research. JAMA (1981) 1.37

Clinical biostatistics. XXXIV. The other side of 'statistical significance': alpha, beta, delta, and the calculation of sample size. Clin Pharmacol Ther (1975) 1.36

The 'epidemiologic necropsy'. Unexpected detections, demographic selections, and changing rates of lung cancer. JAMA (1987) 1.35

Scientific problems in clinical scales, as demonstrated in the Karnofsky index of performance status. J Chronic Dis (1979) 1.34

New epidemiologic evidence confirming that bias does not explain the aspirin/Reye's syndrome association. JAMA (1989) 1.34

Clinical symptoms and comorbidity: significance for the prognostic classification of cancer. Cancer (1996) 1.31

An additional basic science for clinical medicine: I. The constraining fundamental paradigms. Ann Intern Med (1983) 1.29

Clinical effects of recurrent attacks of acute rheumatic fever: a prospective epidemiologic study of 105 episodes. J Chronic Dis (1967) 1.28

Monte Carlo methods in clinical research: applications in multivariable analysis. J Investig Med (1997) 1.28

Operational criteria for adverse drug reactions in evaluating suspected toxicity of a popular scabicide. Clin Pharmacol Ther (1980) 1.27

Clinical biostatistics. XXVII. The derangements of the 'range of normal'. Clin Pharmacol Ther (1974) 1.27

Clinical biostatistics. II. Statistics versus science in design of experiments. Clin Pharmacol Ther (1970) 1.27

Clinical biostatistics. 28. The biostatistical problems of pharmaceutical surveillance. Clin Pharmacol Ther (1974) 1.26

What kind of basic science for clinical medicine? N Engl J Med (1970) 1.25

Alternative analytic methods for case-control studies of estrogens and endometrial cancer. N Engl J Med (1978) 1.25

Ask patients what they want. Evaluation of individual complaints before total hip replacement. J Bone Joint Surg Br (1994) 1.23

Invidious comparisons and unmet clinical challenges. Am J Med (1992) 1.22

Necropsy evidence of detection bias in the diagnosis of lung cancer. Arch Intern Med (1986) 1.21

The need for humanised science in evaluating medication. Lancet (1972) 1.21

Symptoms as an index of biological behaviour and prognosis in human cancer. Nature (1966) 1.20

Risk for systemic embolization of atrial fibrillation without mitral stenosis. Am J Cardiol (1990) 1.20

The impact of clinical history on mammographic interpretations. JAMA (1997) 1.17

The role of tonsils in predisposing to streptococcal infections and recurrences of rheumatic fever. N Engl J Med (1970) 1.17

A bibliography of publications on observer variability. J Chronic Dis (1985) 1.17

The auxometric dimension. A new method for using rate of growth in prognostic staging of breast cancer. JAMA (1974) 1.17

A reappraisal of histopathology in lung cancer and correlation of cell types with antecedent cigarette smoking. Am Rev Respir Dis (1973) 1.17

Taxonorics. I. Formulation of criteria. Arch Intern Med (1970) 1.16

Asking patients what they like: overlooked attributes of patient satisfaction with primary care. Am J Med (1997) 1.15

Construction, consent, and condemnation in research on peer review. J Clin Epidemiol (1991) 1.13

Improving the reliability of orthopaedic measurements. J Bone Joint Surg Br (1992) 1.12

Pregnancy and gallstone disease: an empiric demonstration of the importance of specification of risk periods. Am J Epidemiol (1991) 1.11

Effectiveness of bed rest after mild traumatic brain injury: a randomised trial of no versus six days of bed rest. J Neurol Neurosurg Psychiatry (2002) 1.11