Testing the Newcastle Ottawa Scale showed low reliability between individual reviewers

The Measurement of Observer Agreement for Categorical Data

J. Richard Landis, Gary G. Koch · Biometrics · 1977 · 78.9K citations · Full text

Public Health, Biostatistics, Categorical Data Analysis +12

The Newcastle-Ottawa Scale (NOS) for Assessing the Quality of Nonrandomised Studies in Meta-Analyses

George A. Wells · Medical Entomology and Zoology · 2014 · 17.9K citations · Full text

Public Health, Biostatistics, Clinical Epidemiology +9

Critical evaluation of the Newcastle-Ottawa scale for the assessment of the quality of nonrandomized studies in meta-analyses

Andreas Stang · European Journal of Epidemiology · 2010 · 17.6K citations

Public Health, Biostatistics, Health Sciences +9

Categorical Data Analysis

David E. Hapeman · Technometrics · 1991 · 9.1K citations

Public Health, Biostatistics, Categorical Data Analysis +8

The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care interventions.

Sara H. Downs, Nicholas Black · Journal of Epidemiology & Community Health · 1998 · 8.3K citations · Full text

Medicine, Health Promotion, Health Assessment +16