The odds ratio: impact of study design.

نویسنده

  • G Fitzmaurice
چکیده

In the previous column 1 we considered the “two-by-two” contingency table, a simple square array used to provide a tabular display of the relationship between two categorical variables, each having only two levels. Figure 1 shows such a table, where the rows correspond to nutritional status and the columns correspond to disease status. We showed that the relationship between the two variables can be described in terms of the odds ratio,

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

آیا نسبت شانس برآورد مناسبی از خطر نسبی است؟

Relative risk (RR) and Odds ratio (OR) are two measures of risk which has been widely used in epidemiological studies. The cohort studies are designed to directly compute a relative risk, but the situation is somewhat more complicated in the case-control design. In these studies, the odds ratio gives a valid estimate of the effect size. There is not a serious problem if you don’t use of t...

متن کامل

Parametric Study of the Impact of Windows to Wall Ratio on Reduction of Energy Consumption and Environmental Impact of a Zero-Energy Building in Different Orientations

Nowadays, the increase of fossil fuel consumption intensifies the crucial role of architects. As buildings consume over one-third of the used energy, the society of architects is held responsible for this consumption. Therefore, the amount of energy used by a building is directly related to its design; meaning that reduction of energy consumption should be targeted at the design stage. In this ...

متن کامل

The Impact of Adverse Experiences in Childhood Relationships on the Mental Health of University Students

Background and Objective: The aim of this study was to evaluate the rate of adverse experiences in childhood experiences (relational ACEs) in family and school settings, among university students, and investigate how they affect the students’ negative health outcomes including depression, anxiety, suicidal attitude, lifetime serious suicidal thought (LSST). Methods: In this study, 524 students ...

متن کامل

Analysis of Work-Related Musculoskeletal Disorders in Nursing Occupation: A Comparative Assessment between Shift and Day Workers

Introduction: The prevalence of musculoskeletal disorders in the nursing profession has been high reported. The aim of this study was to evaluate the prevalence of musculoskeletal disorders as well as to analysis the risk factors associated with it in the nursing community. Method: This cross-sectional study was performed in seven hospitals in Khuzestan province in 2020. The study population a...

متن کامل

بررسی عوامل موثر بر تولد فرزندان‌ ناخواسته‌ در شهر‌ بابل، سال 1380

Background and purpose : Ünwanted birth is a major consequence of improper implementation of family planning programme. This study was aimed to determine the unwanted birth rate and its predisposing factors among married women in Babol population. Materials and methods : Â cross-sectional study was conducted on 508 married women referred to a private and a public hospital in Babol city in ...

متن کامل

Diversity of Toll-like Receptor Genes and Helicobacter Pylori Infections: A Meta-Analysis Study

Background and Aims: Several studies have shown that host genetic factors can be associated with the risk of developing Helicobacter pylori infections. Therefore, we evaluated the most prevalent toll-like receptors (TLRs) polymorphisms in Helicobacter pylori positive subjects and their possible role in susceptibility to Helicobacter pylori infections. Materials and Methods: Using related keywo...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Nutrition

دوره 16 11-12  شماره 

صفحات  -

تاریخ انتشار 2000