Campbell Essential Biology with Physiology (6th Edition)
Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 26, Problem 16PS
Summary Introduction

To explain: The necessity of reporting the “person-years” data while studying the control of HIV infections in human with or without condoms.

Concept introduction: The person-years data are a measurement of the probability for some medical conditions of how many people are affected with in a specific period. In some cases, the total new infections are expressed during a particular time period.

Summary Introduction

To explain: What would be wrong about simply comparing the number of people who became infected in each group.

Concept introduction: The person-years data are a measurement of the probability for some medical conditions of how many people are affected with in a specific period. In some cases, the total new infections are expressed during a particular time period.

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