COX REGRESSION WITH ALTERNATIVE CONCEPTS OF WAITING TIME: THE NEW ORLEANS YELLOW FEVER EPIDEMIC OF 1853

✍ Scribed by İNSAN TUNALI; JONATHAN B. PRITCHETT

• Book ID: 101284665
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 338 KB
• Volume: 12
• Category: Article
• ISSN: 0883-7252
• DOI: 10.1002/(sici)1099-1255(199701)12:1<1::aid-jae423>3.0.co;2-z

✦ Synopsis

Event data can often be analysed using dierent concepts of waiting time. Our application oers three choices: calendar-time, age, and duration of residence in New Orleans. We exploit the semi-parametric features of Cox regression and estimate parallel speci®cations in which mortality risk is treated as an arbitrary function of one of the three alternative time measures, while the remaining two enter the hazard parametrically. Comparisons of the parameter estimates with the corresponding estimates of the baseline hazards form the crux of a simple speci®cation checking procedure. In our formal treatment we rely on Aalen's Multiplicative Intensity formulation and tackle complications such as left-truncation, functional form speci®cation, and choice-based sampling.