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4th North American Stata Users Group meeting

USS Constitution
Dates: July 11–12, 2005
Organizers: Rich Goldstein,
Elizabeth Allred,
Kit Baum,
Venue: Longwood Galleria Conference Center
342 Longwood Avenue
Boston, Massachusetts
  Price Student price
Day 1: Users Group meeting $85 $35
Day 2: Training courses from StataCorp $85 $35
Both days: Users Group meeting and
Training courses from StataCorp
$135 $55
Day 1: Optional dinner (additional cost) $35 $35

Notice of meeting

The fourth North American Stata Users Group meeting will be held on July 11–12, 2005 in Boston, Massachusetts, at the Longwood Galleria Conference Center.

The first day of the meeting will showcase user presentations. The second day features training courses on Mata, Stata's new matrix programming language, and on analyzing survey data and correlated data, as well as an overview of Stata 9's new features.

For information about registration, see the registration form. Registration must be received by June 30, 2005. If you have questions, contact the organizers.

Previous Stata Users Group meetings have been held in Boston (2001, 2003, and 2004), Australia, Britain, Ireland, Italy, Spain, Germany, and the Netherlands. Anyone interested in Stata, regardless of level of expertise or geographic location, is invited to attend. The meeting will include the ever-popular "wishes and grumbles" session where users make comments and suggestions to StataCorp.

To see proceedings from previous Stata Users Group meetings, see


Day 1   Users Group meeting

Session 1: 8:30–9:45  Statistical Models I
Analysis of multiple source/multiple informant data in Stata (20 minutes)
Nicholas Horton, Smith College
Garrett Fitzmaurice, Harvard University

gologit2: Generalized logistic regression models for ordinal dependent variables (20 minutes)
Richard A. Williams, University of Notre Dame

L-statistics, especially L-moments, for fun and profit (20 minutes)
Nicholas J. Cox, Durham University
Break: 9:45–10:15

Session 2: 10:15–11:45  Data Management Using Stata
Integrating Stata with database management systems (20 minutes)
Ed Bassin, ProfSoft, Inc.

Mass producing appendices using Stata and word processor mail merge (10 minutes)
Michael Blasnik, M. Blasnik & Associates

Reproducible research using Stata (20 minutes)
L. Philip Schumm, University of Chicago
Ronald A. Thisted, University of Chicago

Collaborative data management for longitudinal studies (20 minutes)
Stephen F. Brehm, University of Chicago
L. Philip Schumm, University of Chicago
Lunch: 11:45–1:00

Session 3: 1:00–2:15  Statistical Models II
Creating valid and effective measures: Using -optifact- to create better summated rating scales (20 minutes)
Paul Millar, University of Calgary

Using and teaching Stata in a semester-length introduction to biostatistics course (10 minutes)
Clinton Thompson, University of Utah
Stephen C. Alder, University of Utah
Justin Brown, University of Utah
Laurie Johnson, University of Utah

Using Stata graphics as a method of understanding and presenting interaction effects (20 minutes)
Joanne Garrett, UNC at Chapel Hill

cron, perl, and Stata: automated production and presentation of a business-daily index (10 minutes)
Kit Baum, Boston College
Atreya Chakraborty, University of Massachusetts, Boston
Break: 2:15–2:40

Session 4: 2:40–4:00  Biostatistics
Selecting the appropriate statistical distribution for the primary analysis: a case study (20 minutes)
Peter A. Lachenbruch, US FDA

Using Stata 9 to model complex nonlinear relationships with restricted cubic splines (20 minutes)
William D. Dupont, Vanderbilt University School of Medicine
Dale Plummer, Vanderbilt University School of Medicine

Adjusting for unequal selection probability in multilevel models: A comparison of software packages (20 minutes)
Kim Chantala, Carolina Population Center, UNC at Chapel Hill
CM Suchindran, Carolina Population Center, UNC at Chapel Hill
Dan Blanchette, Carolina Population Center, UNC at Chapel Hill
Break: 4:00–4:15

Wishes and Grumbles: 4:15–5:30
Optional dinner: 7:00

Day 2   Featured training courses

Training course 1: 9:00–12:00 (includes 30-minute break)

Mata — matrix programming language

William Gould, President and Head of Development at StataCorp, will provide training in Mata—Stata's new matrix programming language. Mata is both an interactive environment for manipulating matrices and a full development environment that produces compiled and optimized code. Bill will cover both applications, with an emphasis on how you can use Mata to quickly program solutions and how you can easily create new Stata commands with Mata. (Mata is fully integrated with Stata). As you learn how to use Mata, it will become clear why Stata developers chose to implement some of the major new features in Stata 9 using Mata, including linear mixed models and multinomial probit.

Lunch: 12:00–1:15
Training course 2: 1:15–5:00 (includes 30-minute break)

Analysis of survey data and correlated data

Jeff Pitblado, Senior Statistician at StataCorp and principal architect of the new survey-analysis features in Stata 9, will discuss and demonstrate Stata's features for analyzing survey data and correlated data. Jeff will explain how and when to use the three major variance estimators for survey and correlated data—the linearization estimator, balanced repeated replications, and the clustered jackknife (the latter two having been added in Stata 9). He will also discuss sampling designs and stratification, including Stata's new features for estimation with data from multistage designs and for applying poststratification. A theme of the seminar will be how you can make inferences with correct coverage from data collected by single stage or multistage surveys or from data with inherent correlation, such as data from longitudinal studies.


The North American Users Group meeting will be held on July 11–12, 2005, at
Longwood Galleria Conference Center
342 Longwood Avenue
Boston, Massachusetts
A block of rooms has been reserved for StataCorp at the Best Western Inn at Longwood for July 10–12, 2005. The discounted group rate is $149.00 per night. Tax is 12.45% for 1–4 people.

To reserve a room, call Best Western Inn at Longwood direct and ask for in-house reservations. The toll-free reservation number is 877-267-9991 or local 617-731-4700. Please refer to StataCorp Fourth North American Stata Users Group meeting when making reservations.

Please note that the last day to make a reservation at the discounted rate is June 17, 2005.

Hotel details:
Best Western Boston Inn at Longwood
342 Longwood Ave., Boston, MA 02115
Main phone number: 617-731-4700 / 800-468-2378
Fax number: 617-731-6273
Check in time: 3 PM
Check out time: 12 noon
Parking: $16.00 per day until 12 noon on day of departure
Smoke free hotel

Special needs:
If you have any special needs (vegetarian, handicapped, etc.), please contact Chris Farrar,, or Gretchen Farrar,

Leonard P. Zakim Bunker Hill Bridge

Please feel free to contact the organizers with any questions.

The North American Stata Users Group Meeting Organizing Committee

Elizabeth Allred Kit Baum Rich Goldstein
Department of Biostatistics
Harvard School of Public Health
Department of Economics
Boston College

Logistics organizers

Chris Farrar
StataCorp LP
  Gretchen Farrar
StataCorp LP
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