BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

Solutions

Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
1 views

Cervical Cancer Incidence in HPV-Positive Women

A persistent infection with one of about 10 strains of genital HPV (human papillomavirus) is the main risk factor for cervical cancer. The virus spreads easily by sexual contact, but vaccines that prevent infection have been available since 2006. The vaccines consist of viral proteins that self-assemble into virus-like particles. The particles are not infectious (they contain no viral DNA), but their component proteins trigger an immune response that can prevent HPV infection and the cervical cancer it causes.

In 2003, Michelle Khan and her coworkers published results of their 10-year study correlating HPV status with cervical cancer incidence in women (FIGURE 37.23). All 20,514 participants were free of cervical cancer when the study began.

Chapter 37, Problem 3DAA, Cervical Cancer Incidence in HPV-Positive Women A persistent infection with one of about 10 strains

FIGURE 37.23 Cumulative incidence rate of cervical cancer correlated with HPV status.

● HPV16 positive

○ HPV16 negative and HPV18 positive

▾ All other cancer-causing HPV types combined

▿ No cancer-causing HPV types was detected.

Is it possible to estimate from this graph the overall risk of cervical cancer that is associated with infection of cancer-causing HPV of any type?

Summary Introduction

To determine: Whether is it possible to estimate from this graph the overall risk of cervical cancer that is associated with the infection of cancer-causing HPV of any type.

Concept introduction: The researchers in this study attempted to make a connection between the presence of various HPV viral infections and the incidence of cervical cancer. Cervical cancer is the cancer that arises from the cervix, which occurs due to the unusual growth of cells that have the capability to invade or spread to other body parts.

Explanation

It is not possible to estimate from the graph the overall risk of cervical cancer, which is associated with the infection of any cancer-causing HPV. In the graph, the one line represents all other cancer-causing HPV types combined...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Taking supplements of fish oil is recommended for those who don't like fish. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)