MDSC 643.02Biostatistics II

Gordon Hilton Fickghfick@ucalgary.ca

www.ucalgary.ca/~ghfick220-6939

Teaching Assistants

• Jian Kang:

• Office hours and some large group sessions

• Shelly Vik:

• Marking and grading

Stata

• First:• Phone Stata Corporation: 800-248-8272• Intercooled Stata 8 is recommended• Perpetual license is the best deal: US$134• You want ‘Method 3 Grad Plan’• Then:• Vicki Stagg will contact you• vlstagg@ucalgary.ca• 220-7265

Appointments to see GHF

• Crystal Elliott

• elliottc@ucalgary.ca

• 220-4288

• Monday afternoons are best

• Other days and/or times are possible too

Assignments

• Interpretation most important

• All Stata analyses must be explained

• Define all terms in context

• Use Equations editor to make symbols answermybx unadj *

1̂

Prerequisite Course

• MDSC 643.01: Biostatistics I

• B+ or better

• Within the past 3 years

• See GHF if you have other preparation

Prerequisite material

Interpret accurately and completely:• boxplots, scatterplots, line plots, axes, units,

titles• mean versus median: when?• data transformations• tests and confidence intervals• tables: FET versus tests• means: t-tests, analysis of variance• matched analysis

2

Computing Background

• Windows/Mac/Linux architecture

• Website: links, left versus right clicks

• Stata : Rabe-Hesketh & Everitt

• : Chapters 1 & 2

Projects

• Grouped In pairs

• Power Point presentations

• To display biostatistical content

• 10 minutes for each group

Course Objectives

• Health Studies: From idea, to design, to data collection, data analysis and interpretation

• Linking classical analyses to model-based analyses• Using software: spreadsheet/database to statistical

analysis• Linear regression and Logistic regression: choosing,

assessing, interpreting• Introducing other regression models: conditional logistic,

proportional hazards and others• Using models to assess potential confounders and/or

modifiers