Class schedule (subject to change)

Biostatistics and Research Design in Dentistry (DENS 580)
Time: (promptly) at 12:30 to 1:45 (or earlier).
Location: Perkinson 3120 (Lutz conference room); except the first meeting which will be in Lyons A012 (Basement conference room)
30-Aug
Orientation and Overview
Meet in Lyons A012 (basement)
Handouts:
General Course Information
Topic schedule (this document)
Bibliography
Concept papers, what's expected
You will also need:
VCU School of Graduate Studies, Theses and Dissertation Manual
    www.library.vcu.edu/preservation/theses.html
    see especially "formatting tips" and "template" in MSWord format.
Alexander Fellowship information (due March 1)
   go to: http://www.dentistry.vcu.edu/about/research/
   download the "purpose and eligibility" and the "application"
Author guidelines for: 
Journal of Endodontics
   www.elsevier.com/wps/find/journaldescription.cws_home/707230/authorinstructions
Pediatric Dentistry
   www.aapd.org/publications/Instructions.pdf
Journal of Periodontology
   www.joponline.org/userimages/ContentEditor/1124388816475/Instructions_to_Authors.pdf
American Journal of Orthodontics & Dentofacial Orthopedics
   http://journals.elsevierhealth.com/periodicals/ymod/authorinfo
1-Sep
Study Designs in Medical Research
Meet in Perkinson 3120 (Lutz conference room)
behind the Irish conference room, Perkinson 3116
Reading assignment:
Chapter 2, “Study designs in medical research” in B Dawson, RG Trapp (2004) Basic & Clinical Biostatistics, 4th Edition.
Note on reading assignments: When a paper or book chapter is assigned, graduate students are expected 1) to have read the item before the class period, 2) to bring the item to class, 3) to come prepared with questions about topics that are unfamiliar or confusing, and 4) to participate in the in-class discussion of the topics.
Handouts given out in class:
Study Designs
6-Sep
Reading and Assessing the Literature
Reading assignment:
Harrison JE. Evidence-based orthodontics—how do I assess the evidence? J Orthod 2000; 27.
also skim: Chapter 13, “Reading the Medical Literature” in Dawson-Trapp.
Handouts:
How to Critique Papers, How to Participate in a Paper Critique
8-Sep
Recognizing Sources of Bias in the Literature
Reading assignment:
Hartman JM, Forsen JW, Jr., Wallace MS, Neely JG. Tutorials in clinical research: part IV: recognizing and controlling bias. Laryngoscope 2002; 112:23-31.
also see the sections beginning on page 335, “Bias related to subject selection” in Dawson-Trapp; continuing thru “Blinding” on page 340.
13-Sep
Overview of Statistical Methods, Summarizing Data
Reading assignment:
K.R. Baumgardner (1997) “A review of key research design and statistical analysis issues,” Oral Surgery Oral Medicine Oral Pathology, 84(5), 550-556.
Handouts:
Re: Baumgardner, and Summary of Statistical Analysis Methods
Introduction to Biostatistics, Summarizing and Displaying Continuous Data
Reading assignment:
Chapter 3 “Summarizing data …” in Dawson-Trapp up to but not including “Summarizing nominal and ordinal data with numbers” on page 40.
Handout:
Descriptive Statistics for Continuous Data
15-Sep
No class
Endo unavailable
20-Sep
Summarizing and Displaying Nominal Data
Reading assignment:
Chapter 3 “Summarizing data …” in Dawson-Trapp starting with “Summarizing nominal and ordinal data with numbers” on page 40 thru “Tables and graphs for nominal and ordinal data” on page 47. The section on “adjusting rates” can be skimmed (pages 44-46).
Handout:
Descriptive Statistics for Nominal Data.
Estimation and confidence intervals, hypothesis testing, significance levels, power
Reading assignment:
Chapter 5 “Research Questions about One Group” thru section 5.4.2 in Dawson-Trapp.
Handout:
Research questions about one group
22-Sep
An Example of a Paper Critique
Reading assignment:
CL Bell, et. All "The immediate placement of dental implants into extraction sites with periapical lesions: A retrospective chart review". 2011 Journal of Oral and Maxillofacial Surgery 69:1623-1627.
Faculty will stand in as “graduate students assigned to critiques a paper”. They will lead the discussion of this paper—just as you will with future papers (See “How to Critique Papers”).
Assignment:
Come prepared with at least one question regarding the paper—see “How to Participate in a Paper Critique”. Since this an “example critique”, on this occasion your participation will not be graded.
27-Sep
Paper Critiques
Reading assignment:
Paper 1 - Sorensen and Martinoff.  “Clinically significant factors in dowel design.”  1984.  Journal of Prosthodontic Dentistry 52:28-35.
Paper 2 - West et al.  Changes in the craniofacial complex from adolescence to midadulthood:  A cephalometric study. 1999 American Journal of Orthodontics and Dentofacial Orthopedics 115:521-532.
Assignments:
See “How to Critique Papers"
Abdul-Nabi, Bhatti, Ha will lead a discussion of 1 (Sorensen).
Babb, Doan, Hay will lead a discussion of 2 (West).
29-Sep
No class
Ortho unavailable
4-Oct
Proportions and Contingency Tables
Reading Assignment:
Chapter 6 “Two separate groups” in Dawson-Trapp (only the sections on contingency tables)
Note: Students will sign up for their presentations beginning on 20-Oct
6-Oct
Use of Humans and Animals in Research
Reading assignment:
The World Medical Association Declaration of Helsinki
(download from: http://www.wma.net/en/30publications/10policies/b3/ )
Assignment (due before Thanksgiving):
Complete training for biomedical researchers human subjects protection at: www.research.vcu.edu/irb/education.htm. Down at the bottom of this page, you’ll see “Required human subjects education: Click here” and the link: www.citiprogram.org.
When the training is complete, you will receive a “diploma”—print out multiple copies and turn in one copy.
11-Oct
Critiques: Proportions and Contingency Tables
Reading Assignment:
Paper 3 by Lindauer et al.. Paper 4 by Jackson et al.
Assignment:
Bakuri, Eppright, Hodgson will lead a discussion of 3 (Lindauer).
Merrell, Shreck will lead a discussion of 4 (Jackson).
All will participate in the discussion.
13-Oct
Comparing means (t-test)
Reading assignment:
Chapter 6, “Two separate groups”, the section on comparing means
18-Oct
Critiques: Comparing means
Reading Assignment:
Paper 5 by Ziebert et al. Paper 6 by Farik et al.
Assignment:
McEntire, Rost, Smart will lead a discussion of 5 (Ziebert).
Abdul-Nabi, Sarao, Peters will lead a discussion of 6 (Farik).
20-Oct
Concept papers due, Begin Discussion of concept papers
Handout:
See “Concept Papers, what’s expected”
For the next four class periods, four students will present their proposed research concepts. Each will have 18 minutes—plan on about a 12-15 minute presentation and then open it to questions, comments, suggestions from your peers for up to 5 minutes. Note that purpose of this presentation is two-fold: 1) for the presenter to get useful feedback to improve the research, and 2) for the students in the audience to gain further experience in critiquing research.
We’ll need something visual to work from. Either bring 18 copies of your concept paper or have powerpoint handouts.

Presenters (starting at 12:30): Hodgson, Sarao, Eppright, Peters

25-Oct

Discussion of concept papers

Presenters (starting at 12:30): Hay, McEntire, Shreck, Rost

27-Oct

Discussion of concept papers

Presenters (starting at 12:30): Doan, Merrell, Babb, Abdl-Nabi

1-Nov

Discussion of concept papers

Presenters (starting at 12:30): Smart, Ha, Bhatti, Bakuri

3-Nov
No class
Ortho, Pedo unavailable
8-Nov
No class
Best unavailable
10-Nov
Critiques: Comparing means;  Building a database
Reading Assignment:
Paper 7 by Norton
Assignment:
Babb, Bhatti, Ha will lead a discussion of 7 (Norton).
Creating an Excel database
Reading: none. Presented by Dr. Best
15-Nov
No class
Perio unavailable
17-Nov
Review of Methods and ANOVA
Reading assignment: Baumgardner and Chapter 7, “…comparing three or more groups”
Correlation and regression
Reading assignment: Chapter 8, “Relationships among variables…
22-Nov
Critiques of Papers
Assignment:
Bakuri, Doan, Hay will lead a discussion of 8 (Yee).
Hodgson, Merrell, Shreck will lead a discussion of 9 (Johnson).
All discuss
24-Nov
No Class
Thanksgiving
29-Nov
Critiques of Papers
Assignment:
Eppright, McEntire, Smart will lead a discussion of 10 (Gapski).
Abdul-Nabi, Sarao, Rost will lead a discussion of 11 (Phrukkanon).
1-Dec
No Class
Chapter 1 of Thesis Due
No discussions, just eMail me your draft thesis TO: ALBest@vcu.edu
Assignment:
Written literature review for research project due. (complete "Introduction" chapter; begin "Methods")
(See “Concept Papers, What’s Expected”.) What’s due is the first draft of your thesis up to and including the Introduction section (including full lit review, plus specific aims), and a perfectly formatted bibliography. You must also begin your methods section including at least a rough idea of how you’ll perform the study.
This document must be formatted just as your final thesis will be formatted.
6-Dec
Equivalence or “just as good as” Claims
Reading assignment (everyone): 
Jones, Jarvis & Lewis “Trials to assess equivalence …” BMJ (1996).  Dr. Best will present an overview of this material. Then we discuss the following paper:
Assignment:
Bhatti, Eppright, Hay will lead a discussion of 14 (Burns).
All discuss
8-Dec
[placeholder in case we need this class]
End of Fall Semester Classes
Classes resume on Tuesday, 17-Jan
Consultations with Dr. Best to finalize database design, and statistical methods
17-Jan
19-Jan
24-Jan
26-Jan
(No class for students who are not signed up for a “slot”)
Sign up to finalize your research proposal. Bring your proposal, and any associated material [such as ‘scoring sheets’ or proposed excel spreadsheets]
31-Jan
Logistic regression
Reading assignment: “Logistic Regression” in Chapter 10, “Statistical methods for multiple variables”
2-Feb
Logistic regression paper critiques
Babb, Peters, Smart will lead a discussion of 12 (Baughan).
Bakuri, Ha, Merrell will lead a discussion of 13 (Cutler).
7-Feb
Survival analysis
Reading assignment: Chapter 9 “About survival …”
9-Feb
Critique of Survival papers
Doan, McEntire, Sarao will lead a discussion of 15 (Becker).
Peters, Rost will lead a discussion of 16 (Bogacki).
14-Feb
Sensitivity and Specificity; Measurement error, agreement
Reading assignment: Chapter 12, “Measuring the accuracy of diagnostic procedures …” and  Chapter 5, “Measuring agreement” in Dawson-Trapp
Assignment:
Hodgson, Shreck will lead a discussion of 17 (Lanning).
16-Feb
Meta-Analysis and Critical Reviews
Reading Assignment
"Meta-Analysis" in Chapter 10 of Dawson-Trapp, starting on page 267- to 271
Assignment: (all read and be prepared to discuss)
Gunsolley, JC. A meta-analysis of six-month studies of antiplaque and antigingivitis agents. 2006. JADA. 137(12):1649-57.
Final Written Research Proposal due.
this is the last class