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Review and Preview

Review and Preview

In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...

Review and Preview

Review and Preview

Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...

Chi-square Analysis

Chi-square Analysis

The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...

Feedback Inhibition

Feedback Inhibition

Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!

Clinical Trials: Overview

Clinical Trials: Overview

Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...

Feedback Loops

Feedback Loops

In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.

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Meta-Analysis of the Effectiveness and Safety of Shugan Jieyu Capsules for the Treatment of Insomnia

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[Review Articles].

Humberto Reyes B¹

¹Revista Médica de Chile, Chile.

Revista Medica De Chile

|July 31, 2020

Summary

This summary is machine-generated.

This paper explores medical review articles, classifying them as narrative, systematic, or meta-analysis. While narrative reviews cover disease aspects, systematic reviews and meta-analyses are crucial for evidence-based medicine and healthcare policy.

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Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases

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Author Spotlight: Evaluating the Adjuvant Efficacy and Safety of Angong Niuhuang Pill in Viral Encephalitis Treatment

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Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases

Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases

Published on: October 24, 2019

Area of Science:

Medical Research
Scientific Publishing

Background:

Review articles are essential for synthesizing medical knowledge.
Different types of reviews exist: narrative, systematic, and meta-analysis, each serving distinct purposes.

Purpose of the Study:

To summarize the features of medical review articles.
To analyze the trends in review article types published in Revista Médica de Chile over time.
To highlight the importance of ethical considerations in scientific publications.

Main Methods:

Classification of review articles into narrative, systematic, and meta-analysis based on methodology.
Comparative analysis of review article types published in Revista Médica de Chile across "2001", "2010", and "2019" periods.
Literature search and critical appraisal of review article methodologies.

Main Results:

Narrative reviews were predominant in all analyzed periods.
A gradual increase in systematic reviews was observed from "2010" to "2019".
No meta-analyses were published in the journal during the studied periods, though they exist in other international journals.

Conclusions:

Review articles play a vital educational and professional role in medicine.
Systematic reviews and meta-analyses are critical for evidence-based medicine, clinical guidelines, and healthcare policy.
Adherence to ethical rules, including authorship and conflict of interest disclosure, is paramount in scientific publications.