Section outline

  • Measures of Disease Occurrence I

    Prevalence vs. incidence; the three elements in measuring disease incidence; the concept of a rate; cumulative incidence vs. person-time incidence; concepts of survival analysis—failure time and censoring; calculating cumulative incidence—Kaplan Meier and life-table methods; and assumptions for valid estimates of cumulative incidence.

    Faculty:  Ann Schwartz

    • Lecture Slides:

    • Disease Occurrence I 2021 File

    • Lecture Audio/Video Recording (Access restricted to registered students): 

    • Watch 2021 URL
      Not available unless: You belong to a group in Registered Students Only

    • Large Group Discussion (Access restricted to registered students): Brief formal review of lecture followed by question and answer discussion. Recorded lecture should be viewed prior to this session.

    • Watch 2021 Media Resource
      Not available unless: You belong to Registered Students Only

    • Recommended Reading:

    •   S & N: Ch. 2

    • Tapia Granados JA. On the terminology and dimensions of incidence. J Clin Epi 50:891-897, 1997. File
      Not available unless: Your ID number contains 02

    • Optional Reading:

    • Kaplan EL and Meier P. Nonparametric estimation from incomplete observations. J. American Stat. Assoc. 282: 457-481, 1958 File
      Not available unless: Your ID number contains 02
    • Rich JT et al. A practical guide to understanding Kaplan-Meier curves. Otolaryngol. Head Neck Surg. 143:331-336, 2010. File
      Not available unless: Your ID number contains 02
    • Rothman K. Measuring disease occurrence and causal effects. In: Epidemiology: An Introduction. Oxford Press, 2012. pgs:pg 38-56. File
      Not available unless: Your ID number contains 02

    • Assignment:  Problem Set 2  (Note: If you are unable to view the graphs in questions 2 and 3 in the MS Word version of this problem set, please use the PDF version.)

    • Problem Set 2 Disease Occurrence I 2021 [WORD version] File
    • Problem Set 2 Disease Occurrence I 2021 [PDF version] File
    • Epi203survival File
    • Summary of basic Stata survival analysis commands File

    • Assignment Due Date:  September 28, 2021 at the beginning of Small Group Discussion

    • Assignment Answer Key (Access restricted to registered students):

    • Problem Set 2 Disease Occurrence I Answer Key 2021 File
    • Problem Set 2 Disease Occurrence I Answer Key 2021 File