scholarly journals Being sensitive to Intention-to-treat in medical research

2021 ◽  
Vol 23 (3) ◽  
pp. 146-147
Author(s):  
Sahar Khoshkesht ◽  
Nahid Dehghan Nayeri
Author(s):  
J. D. Hutchison

When the transmission electron microscope was commercially introduced a few years ago, it was heralded as one of the most significant aids to medical research of the century. It continues to occupy that niche; however, the scanning electron microscope is gaining rapidly in relative importance as it fills the gap between conventional optical microscopy and transmission electron microscopy.IBM Boulder is conducting three major programs in cooperation with the Colorado School of Medicine. These are the study of the mechanism of failure of the prosthetic heart valve, the study of the ultrastructure of lung tissue, and the definition of the function of the cilia of the ventricular ependyma of the brain.


1990 ◽  
Vol 78 (1) ◽  
pp. 1-1
Author(s):  
M. J. Brown

From this issue, Clinical Science will increase its page numbers from an average of 112 to 128 per monthly issue. This welcome change — equivalent to at least two manuscripts — has been ‘forced’ on us by the increasing pressure on space; this has led to an undesirable increase in the delay between acceptance and publication, and to a fall in the proportion of submitted manuscripts we have been able to accept. The change in page numbers will instead permit us now to return to our exceptionally short interval between acceptance and publication of 3–4 months; and at the same time we shall be able not only to accept (as now) those papers requiring little or no revision, but also to offer hope to some of those papers which have raised our interest but come to grief in review because of a major but remediable problem. Our view, doubtless unoriginal, has been that the review process, which is unusually thorough for Clinical Science, involving a specialist editor and two external referees, is most constructive when it helps the evolution of a good paper from an interesting piece of research. Traditionally, the papers in Clinical Science have represented some areas of research more than others. However, this has reflected entirely the pattern of papers submitted to us, rather than any selective interest of the Editorial Board, which numbers up to 35 scientists covering most areas of medical research. Arguably, after the explosion during the last decade of specialist journals, the general journal can look forward to a renaissance in the 1990s, as scientists in apparently different specialities discover that they are interested in the same substances, asking similar questions and developing techniques of mutual benefit to answer these questions. This situation arises from the trend, even among clinical scientists, to recognize the power of research based at the cellular and molecular level to achieve real progress, and at this level the concept of organ-based specialism breaks down. It is perhaps ironic that this journal, for a short while at the end of the 1970s, adopted — and then discarded — the name of Clinical Science and Molecular Medicine, since this title perfectly represents the direction in which clinical science, and therefore Clinical Science, is now progressing.


JAMA ◽  
1966 ◽  
Vol 196 (11) ◽  
pp. 967-972
Author(s):  
J. F. Dickson

JAMA ◽  
1966 ◽  
Vol 196 (11) ◽  
pp. 944-949 ◽  
Author(s):  
H. R. Warner
Keyword(s):  

Author(s):  
Barbara Braun ◽  
Silke Behrendt ◽  
Daniela Piontek ◽  
Ludwig Kraus ◽  
Gerhard Bühringer

Zusammenfassung. Zielsetzung: Der demographische Wandel lässt eine höhere Anzahl älterer Personen mit Alkoholproblemen erwarten, deren therapeutische Versorgung bislang unzureichend ist. Mit der internationalen, randomisiert-kontrollierten ELDERLY-Studie wurden zwei Varianten einer ambulanten psychotherapeutischen Behandlung für Personen ab 60 Jahren mit einer Alkoholkonsumstörung nach DSM-5 (AS) in drei Ländern erprobt. Methodik: Nach der Baseline-Befragung wurden die zufällig zugeordneten Behandlungsgruppen nach 1, 3, 6 und 12 Monaten erneut untersucht. Erfasst wurden Veränderungen (Zeit und Gruppe) hinsichtlich Trinkmenge, Anzahl abstinenter Tage, Anzahl Tage Rauschtrinken und Tage risikoarmen Konsums sowie Anzahl zutreffender DSM-5-Kriterien für AS. Complete-Case- und Intention-to-treat-Analysen werden für die deutsche Teilstichprobe vorgestellt (n=203). Ergebnisse: Für beide Behandlungsgruppen ergaben sich stabil bis zu 12 Monate nach Baseline ein Anstieg der Abstinenzrate (18 %; t0: 4 %), des Anteils der Personen ohne einen Tag mit riskantem Konsum (45 %, t0: 4 %) sowie ohne Rauschtrinken (68 %, t0: 15 %). Auch zeigte sich eine Verringerung der Trinkmenge (Median bei 27 g Reinalkohol pro Trinktag; t0: 58 g) und Anzahl erfüllter AS-Kriterien (Median bei 2; t0: 5). Schlussfolgerungen: Die Verbesserungen des Trinkverhaltens und der AS-Symptome waren trotz relativ kurzer Behandlungsdauer stabil. Motivierende Interventionen, insbesondere die persönliche Rückmeldung zum Trinkverhalten, bewirken auch bei älteren Personen mit alkoholbezogenen Störungen Verhaltensänderungen. Ein therapeutischer Nihilismus ist unangebracht; vielmehr sollten spezifische Bedürfnisse der Zielgruppe beachtet und in passenden Versorgungsangeboten umgesetzt werden.


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