Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Hubert J.A. Schouten"'
Publikováno v:
Contemporary Clinical Trials, 27(1), 57-69. Elsevier Science
The effect of number of repeated measures on the variance of the generalized least squares (GLS) treatment effect estimator is considered assuming a linearly divergent treatment effect, equidistant time-points and either a fixed number of subjects or
Autor:
Henny J. M. Beckers, Ludovic G. P. M. van Amelsvoort, Fred Hendrikse, Hubert J.A Schouten, Jan S. A. G. Schouten, Carroll A.B. Webers, Rikkert van der Valk, Martin H. Prins
Publikováno v:
Journal of Glaucoma. 14:239-242
To study the trend in number of glaucoma surgeries, and the influence hereon of the introduction of new glaucoma medication, reimbursement of its costs, and the introduction of a treatment protocol.Out of the Dutch Health Care Registration, all open
Publikováno v:
Anesthesiology. 93:718-727
Background To diagnose sensory abnormalities, patient values can be compared with values of the general population (absolute approach) or to values measured at contralateral homologous skin (relative approach). The current study gives normal values f
Autor:
M Langenberg, J W van Ree, Frank Vermeer, J Lodder, B S P Hellemons, Th Lemmens, Hubert J.A. Schouten, J.A. Knottnerus
Publikováno v:
BMJ. 319:958-964
Objective: To investigate the effectiveness of aspirin and coumarin in preventing thromboembolism in patients with non-rheumatic atrial fibrillation in general practice. Design: Randomised controlled trial. Participants: 729 patients aged ≥60 years
Autor:
Hubert J.A. Schouten
Publikováno v:
Statistics in Medicine. 18:255-264
Simple formulae have been derived for the accurate computation of sample sizes when the two-sample t-test is used. Required sample sizes may be reduced by taking repeated measures, especially if correlations are about equal. In a trial with two paral
Autor:
Hubert J.A. Schouten
Publikováno v:
Statistics in Medicine. 18:87-91
Guenther derived a simple formula for the accurate computation of equal sample sizes when the two-sample t-test with pooled variance estimate is used. In the present paper, the Guenther formula is generalized to the case of unequal sample sizes. In a
Publikováno v:
American Journal of Hypertension, 11, pp. 602-605
American Journal of Hypertension, 11, 602-605
American Journal of Hypertension, 11, 602-605
Our objective was to study seasonal influences on office and ambulatory blood pressure. We therefore designed a prospective 7-month study of 47 borderline hypertensive patients in a primary care setting. We used no interventions. Our main outcome mea
Autor:
Louis L.H. Peeters, Frans A.A. Pieters, Hubert J.A. Schouten, Emile C. Cheriex, Paul P.C.A. Menheere, Johannes J. Duvekot
Publikováno v:
Obstetrics & Gynecology. 85:361-367
Objective: To test the hypothesis that volume adaptation in pregnancies complicated by fetal growth restriction (FGR) is already abnormal very early in pregnancy. Methods: In six pregnancies later complicated by FGR, volume homeostasis in the first 8
Autor:
J. André Knottnerus, Hubert J.A. Schouten, Geert H Blijham, Gerda H Fijten, Richard Starmans, Jean W M Muris
Publikováno v:
Family Practice. 12:279-286
The aim of the study is to determine the diagnostic value of (combinations of) signs, symptoms and simple laboratory test results for colorectal cancer in patients with rectal bleeding presenting in general practice. Initial complaints and findings w
Autor:
Henrica C.W. de Vet, Johan Koudstaal, Jan Willem Arends, Paul Knipschild, Hubert J.A. Schouten, Dirk Willebrand, Ferd Sturmans, Wie Sien Kwee
Publikováno v:
Journal of Clinical Epidemiology, 45(7), 785-790. Elsevier USA
De Vet, H C W, Knipschild, P G, Schouten, H J A, Koudstaal, J, Kwee, W S, Willebrand, D, Sturmans, F & Arends, J W 1992, ' Sources of interobserver variation in histopathological grading of cervical dysplasia ', Journal of Clinical Epidemiology, vol. 45, no. 7, pp. 785-790 . https://doi.org/10.1016/0895-4356(92)90056-S
De Vet, H C W, Knipschild, P G, Schouten, H J A, Koudstaal, J, Kwee, W S, Willebrand, D, Sturmans, F & Arends, J W 1992, ' Sources of interobserver variation in histopathological grading of cervical dysplasia ', Journal of Clinical Epidemiology, vol. 45, no. 7, pp. 785-790 . https://doi.org/10.1016/0895-4356(92)90056-S
The present study aimed to assess where the interobserver variation in grading cervical dysplasia stems from. Four experienced pathologists examined 93 histological slides, after they agreed on which morphological characteristics should be considered