Research and Statistics

• DOI: 10.1542/pir.33.5.e38
• Publication Date: 2021-12-11T06:37:26Z
• Authors: Kenneth Soyemi

1. Kenneth Soyemi, MD, MPH*

1. *Voluntary Attending, Department of Pediatrics, John H. Stroger Jr. Hospital Cook County, Chicago, IL.

Realizing that the degree familiarity with and understanding statistics encompasses a wide spectrum among our readers, this detailed overview statistical tests will serve different functions for readers. Those engaged in research be comfortable information provided may gain deeper insights. Readers who are not familiar these methods find definitions facilitate better studies provide evidence we use to direct clinical care.

During journal club, resident says you, “I see several medical literature. They do mean much me. What is right test perform particular study?” How you respond?

The purpose many collect data from sample individuals represents population interest; help summarize analyze data. A variable anything can measured observed vary. Studies generally have two types: response (also called outcome or dependent variable) explanatory covariate independent variable). For example, study designed show which antibiotics cause bacteriologic cure, negative cultures variables specific antibiotics.

Data described as either quantitative qualitative. Table 1 provides examples characteristics. Quantitative on numerical scale take form discrete integer values points continuous scale. only countable number …