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  • Journal article
    BABAD HR, NOKES DJ, GAY NJ, MILLER E, MORGANCAPNER P, ANDERSON RMet al., 1995,

    PREDICTING THE IMPACT OF MEASLES VACCINATION IN ENGLAND AND WALES - MODEL VALIDATION AND ANALYSIS OF POLICY OPTIONS

    , EPIDEMIOLOGY AND INFECTION, Vol: 114, Pages: 319-344, ISSN: 0950-2688
  • Journal article
    Donnelly CA, Laird NM, Ware JH, 1995,

    Prediction and creation of smooth curves for temporally correlated longitudinal data

    , Journal of the American Statistical Association, Vol: 90, Pages: 984-989, ISSN: 0162-1459

    This article presents a method of obtaining smoothed curves for a sample of individuals that permits an arbitrary number and spacing of observations for each individual. We consider the case where each individual’s curve cannot be separately estimated because either the n<inf>i</inf>’s are too small or no suitable parametric forms for the random effects are available. The model assumes a parametric form for the population mean curve and the correlation of the repeated measures. The assumed correlation structure is evaluated using the empirical semivariogram, a function of the sum of the squared differences of within-individual residuals. A method is proposed to validate the form and stationarity of the correlation structure. Maximum likelihood estimates for the population mean parameters and variance components are obtained simultaneously. These estimates may be used to create a semiparametric differentiable curve and to predict future values for each individual using a method called kriging. This method also yields instantaneous estimates of growth velocity. An example of this method is presented, and connections to kriging are discussed. © 1995 Taylor & Francis Group, LLC.
  • Journal article
    Babad HR, Nokes, Gay NJ, Miller E, Morgan-Capner P, Anderson RMet al., 1995,

    Erratum: Predicting the impact of measles vaccination in England and Wales: Model validation and analysis of policy options (Epidemiology and Infection (1995) 114 (319-344))

    , Epidemiology and Infection, Vol: 115, ISSN: 0950-2688
  • Journal article
    FOSTER G, SHAKESPEARE R, CHINEMANA F, JACKSON H, GREGSON S, MARANGE C, MASHUMBA Set al., 1995,

    ORPHAN PREVALENCE AND EXTENDED FAMILY CARE IN A PERIURBAN COMMUNITY IN ZIMBABWE

    , AIDS CARE-PSYCHOLOGICAL AND SOCIO-MEDICAL ASPECTS OF AIDS/HIV, Vol: 7, Pages: 3-17, ISSN: 0954-0121
    • Cite
    • Citations: 97
  • Journal article
    Anderson RM, 1995,

    Evolutionary pressures in the spread and persistence of infectious agents in vertebrate populations

    , PARASITOLOGY, Vol: 111, Pages: S15-S31, ISSN: 0031-1820
    • Cite
    • Citations: 43
  • Journal article
    ANDERSON RM, 1994,

    THE CROONIAN LECTURE, 1994 - POPULATIONS, INFECTIOUS-DISEASE AND IMMUNITY - A VERY NONLINEAR WORLD

    , PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 346, Pages: 457-505, ISSN: 0962-8436
    • Cite
    • Citations: 54
  • Book
    Donnelly CA, Ware JH, Laird NM, 1994,

    19 Regression analysis of spatially correlated data: The kanawha county health study

    We describe a linear regression model for a spatially correlated dependent variable when a covariate is also spatially correlated and measured with error. Maximum likelihood estimates and likelihood-based confidence intervals for the regression parameters of the linear model are obtained and the method is extended to logistic regression analysis of grouped binomial data by methods analogous to empirical logistic regression. When the independent variable is spatially correlated, the measurement error variance and the other parameters of the regression model can be estimated without additional assumptions or data. The methods are used to characterize the association between outdoor concentrations of volatile organic compounds and respiratory health of school-children attending 73 elementary schools in Kanawha County, West Virginia. Results are compared to those from two-stage estimation procedures in which the dependent variable is regressed on the expectation of the true covariate conditional on the observed covariate values. © 1994 Elsevier Science B.V. All rights reserved.
  • Journal article
    MOORE J, ANDERSON R, 1994,

    THE WHO AND WHY OF HIV VACCINE TRIALS

    , NATURE, Vol: 372, Pages: 313-314, ISSN: 0028-0836
  • Journal article
    GREGSON S, GARNETT GP, ANDERSON RM, 1994,

    ASSESSING THE POTENTIAL IMPACT OF THE HIV-1 EPIDEMIC AN ORPHANHOOD AND THE DEMOGRAPHIC-STRUCTURE OF POPULATIONS IN SUB-SAHARAN AFRICA

    , POPULATION STUDIES-A JOURNAL OF DEMOGRAPHY, Vol: 48, Pages: 435-458, ISSN: 0032-4728
    • Cite
    • Citations: 27
  • Journal article
    GREGSON S, GARNETT GP, ANDERSON RM, 1994,

    IS HIV-1 LIKELY TO BECOME A LEADING CAUSE OF ADULT MORTALITY IN SUB-SAHARAN AFRICA

    , JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES, Vol: 7, Pages: 839-852, ISSN: 1525-4135
    • Cite
    • Citations: 35

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