NBME Form 4 section 1 Q.17 - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
Home
USMLE Articles
USMLE News
USMLE Polls
USMLE Books
USMLE Apps
Go Back   USMLE Forums > USMLE Step 1 Forum

USMLE Step 1 Forum USMLE Step 1 Discussion Forum: Let's talk about anything related to USMLE Step 1 exam


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 08-13-2012
USMLE Forums Scout
 
Steps History: Not yet
Posts: 12
Threads: 3
Thanked 0 Times in 0 Posts
Reputation: 10
Default NBME Form 4 section 1 Q.17

A study is done to determine if raloxifene will decrese the vertebral fractures in postmenopausal woman.The results are shown:

Raloxifene Placebo
Number of women in study group 2557 2576
Number of vertebral fractures 138 260
(5.4%) (10.1%)
Based on these results.How many need to be treated to prevent one vertebral fracture?

A)100/5.4=18.5
B)100/10.1=10
C)100/(10.1+5.4)=6.5
D)100/(10.1-5.4)=21
E)100/(10.1x5.4)=2


Please explain your answer....
Reply With Quote Quick reply to this message



  #2  
Old 08-13-2012
USMLE Forums Scout
 
Steps History: Not yet
Posts: 12
Threads: 3
Thanked 0 Times in 0 Posts
Reputation: 10
Default

A study is done to determine if raloxifene will decrese the vertebral fractures in postmenopausal woman.The results are shown:

Number of women in study group 2557 (Raloxifene)......2576(Placebo)
Number of vertebral fractures 138 (Raloxifene)[5.4%]...260(Placebo)[10.1%]
Based on these results.How many need to be treated to prevent one vertebral fracture?

A)100/5.4=18.5
B)100/10.1=10
C)100/(10.1+5.4)=6.5
D)100/(10.1-5.4)=21
E)100/(10.1x5.4)=2


Please explain your answer....
Reply With Quote Quick reply to this message



Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the USMLE Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Medical School
Choose "---" if you don't want to tell. AMG for US & Canadian medical schools. IMG for all other medical schools.
USMLE Steps History
What steps finished! Example: 1+CK+CS+3 = Passed Step 1, Step 2 CK, Step 2 CS, and Step 3.

Choose "---" if you don't want to tell.

Favorite USMLE Books
What USMLE books you really think are useful. Leave blank if you don't want to tell.
Location
Where you live. Leave blank if you don't want to tell.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
NBME Form 1, Section 1, Q# 1 Prepping123 USMLE Step 1 Forum 7 08-22-2015 10:21 PM
NBME form 2 section 1.Q7 lawsonbenjamin USMLE Step 1 Forum 1 08-13-2012 10:22 AM
NBME Form 1, Section 1, Q# 5 Prepping123 USMLE Step 1 Forum 3 04-25-2011 09:13 AM
NBME Form 1, Section 1, Q# 6 Prepping123 USMLE Step 1 Forum 2 04-21-2011 08:16 PM
NBME Form 1, Section 1, Q# 2 Prepping123 USMLE Step 1 Forum 3 04-17-2011 11:28 AM

RSS Feed
Find Us on Facebook
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2014)