## Extending the Discrete-Time Hazard Model

*Judith D. Singer and John B. Willett*

### in Applied Longitudinal Data Analysis: Modeling Change and Event Occurrence

- Published in print:
- 2003
- Published Online:
- September 2009
- ISBN:
- 9780195152968
- eISBN:
- 9780199864980
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780195152968.003.0012
- Subject:
- Public Health and Epidemiology, Public Health, Epidemiology

The basic discrete-time hazard model invokes assumptions about the population that may, or may not, hold in practice. This chapter examines its assumptions, demonstrating how to evaluate their ... More

## The Cox Proportional Hazards Model

*Guo Shenyang*

### in Survival Analysis

- Published in print:
- 2009
- Published Online:
- January 2010
- ISBN:
- 9780195337518
- eISBN:
- 9780199864256
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780195337518.003.0004
- Subject:
- Social Work, Research and Evaluation

This chapter describes the Cox proportional hazards model (also known as Cox regression). The model was first proposed by Sir David Cox in his famous paper “Regression Models and Life Tables” in ... More

## Applied Longitudinal Data Analysis: Modeling Change and Event Occurrence

*Judith D. Singer and John B. Willett*

- Published in print:
- 2003
- Published Online:
- September 2009
- ISBN:
- 9780195152968
- eISBN:
- 9780199864980
- Item type:
- book

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780195152968.001.0001
- Subject:
- Public Health and Epidemiology, Public Health, Epidemiology

Change is constant in everyday life. Infants crawl and then walk, children learn to read and write, teenagers mature in myriad ways, and the elderly become frail and forgetful. Beyond these natural ... More

## The Length of Time Spent Poor: Estimates from Hazard Regression Models

*Stephen P. Jenkins*

### in Changing Fortunes: Income Mobility and Poverty Dynamics in Britain

- Published in print:
- 2011
- Published Online:
- September 2011
- ISBN:
- 9780199226436
- eISBN:
- 9780191728457
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780199226436.003.0010
- Subject:
- Economics and Finance, Financial Economics, Macro- and Monetary Economics

This chapter uses multivariate hazard regression models to examine differences in people's experience of poverty over a period of time. For individuals who enter poverty, the total length of time ... More

## Extending the Cox Regression Model

*Judith D. Singer and John B. Willett*

### in Applied Longitudinal Data Analysis: Modeling Change and Event Occurrence

- Published in print:
- 2003
- Published Online:
- September 2009
- ISBN:
- 9780195152968
- eISBN:
- 9780199864980
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780195152968.003.0015
- Subject:
- Public Health and Epidemiology, Public Health, Epidemiology

This chapter begins by describing how to include time-varying predictors in the Cox regression model. It then introduces two methods for relaxing the proportionality assumption. Section 15.2 presents ... More

## Multilevel Analysis of Time-to-Event Data

*Guo Shenyang*

### in Survival Analysis

- Published in print:
- 2009
- Published Online:
- January 2010
- ISBN:
- 9780195337518
- eISBN:
- 9780199864256
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780195337518.003.0006
- Subject:
- Social Work, Research and Evaluation

This chapter focuses on a relatively new class of survival models: the multilevel approaches to time-to-event data. It first reviews the importance of conducting multilevel analysis in social work ... More

## Proportional Hazards Regression

*Theodore R. Holford*

### in Multivariate Methods in Epidemiology

- Published in print:
- 2002
- Published Online:
- September 2009
- ISBN:
- 9780195124408
- eISBN:
- 9780199864270
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780195124408.003.0009
- Subject:
- Public Health and Epidemiology, Public Health, Epidemiology

This chapter relaxed the parametrically restrictive parameterization for time considered in Chapter 8, adopting instead a nonparametric set of models in which the exact form for the effect of time ... More

## Varieties of Semi-Presidentialism and Democratic Survival

*Robert Elgie*

### in Semi-Presidentialism: Sub-Types And Democratic Performance

- Published in print:
- 2011
- Published Online:
- January 2012
- ISBN:
- 9780199585984
- eISBN:
- 9780191729003
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780199585984.003.0003
- Subject:
- Political Science, Comparative Politics

The first part of this chapter identifies the set of semi-presidential democracies since 1919 so that their performance can be evaluated. The second section provides some descriptive statistics to ... More

## Parametric Models for Hazard Functions

*Theodore R. Holford*

### in Multivariate Methods in Epidemiology

- Published in print:
- 2002
- Published Online:
- September 2009
- ISBN:
- 9780195124408
- eISBN:
- 9780199864270
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780195124408.003.0008
- Subject:
- Public Health and Epidemiology, Public Health, Epidemiology

This chapter considers several approaches to using regression models when a mathematical expression that describes the way in which the hazard varies with time is known. The simplest of these is the ... More

## Modelling Low Income Transitions: Estimates from a Markov Model

*Stephen P. Jenkins*

### in Changing Fortunes: Income Mobility and Poverty Dynamics in Britain

- Published in print:
- 2011
- Published Online:
- September 2011
- ISBN:
- 9780199226436
- eISBN:
- 9780191728457
- Item type:
- chapter

- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780199226436.003.0011
- Subject:
- Economics and Finance, Financial Economics, Macro- and Monetary Economics

This chapter looks at the similar issues as Chapter 9, but does so using a multivariate Markovian model of poverty transitions rather than hazard regression methods. The advantages and disadvantages ... More