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Dive into the research topics where Deane Merrill is active.

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Featured researches published by Deane Merrill.


Statistics in Medicine | 1996

USE OF DENSITY EQUALIZING MAP PROJECTIONS (DEMP) IN THE ANALYSIS OF CHILDHOOD CANCER IN FOUR CALIFORNIA COUNTIES

Deane Merrill; S. Selvin; E. R. Close; H.H. Holmes

In studying geographic disease distributions, one normally compares rates among arbitrarily defined geographic subareas (for example, census tracts), thereby sacrificing the geographic detail of the original data. The sparser the data, the larger the subareas must be in order to calculate stable rates. This dilemma is avoided with the technique of density equalizing map projections (DEMP). Boundaries of geographic subregions are adjusted to equalize population density over the entire study area. Case location plotted on the transformed map should have a uniform distribution if the underlying disease rates are constant. The present report describes the application of the DEMP technique to 401 childhood cancer cases occurring between 1980 and 1988 in four California counties, with the use of map files and population data for the 262 tracts of the 1980 Census. A kth nearest neighbour analysis provides strong evidence for geographic non-uniformity in tract rates (p < 10(-4)). No such effect is observed for artificial cases generated under the assumption of constant rates. Work is in progress to repeat the analysis with improved population estimates derived from both 1980 and 1990 Census data. Final epidemiologic conclusions will be reported when that analysis is complete.


Communications of The ACM | 1995

The University of California CD-ROM Information System

Deane Merrill; Nathan Parker; Fredric C. Gey; Chris Stuber

The University of California CD-ROM Information System replaces the equivalent of 260,000 books of published federal statistics with a CD-ROM-based online information system. The size of this database is currently 270 CD-ROMs (135GB). It contains 1990 U.S. census data (approximately 3,000 items of socio-economic and demographic information, including race-ethnicity, employment, income, educational level, and poverty) for every block and census tract in the U.S., as well as U.S. foreign trade data by commodity from every city in the U.S. to every country in the world. It also contains the digitized map outline boundary data for city blocks for the entire U.S. (census TIGER files).


Social Science & Medicine | 1993

Interpoint squared distance as a measure of spatial clustering

Steve Selvin; Jane Schulman; Deane Merrill

The expectation and variance for the mean interpoint squared distance are presented. In order to evaluate these expressions it is necessary to calculate the moments of a bivariate uniform distribution defined over an arbitrary polygon. Expressions for these moments are presented, allowing the mean interpoint squared distance to be used as a measure of spatial clustering. The distribution and power of this test statistic is explored on the unit square, and the spatial distribution of 11 cases of non-Hodgkins lymphoma is investigated to illustrate an application of the approach.


American Journal of Epidemiology | 1991

Black-White Differences in Stage-Specific Cancer Survival: Analysis of Seven Selected Sites

Kathleen E. Ragland; Steve Selvin; Deane Merrill


American Journal of Epidemiology | 1988

THE ONSET OF DECLINE IN ISCHEMIC HEART DISEASE MORTALITY IN THE UNITED STATES

Kathleen E. Ragland; Steve Selvin; Deane Merrill


American Journal of Epidemiology | 1983

SELECTED EPIDEMIOLOGIC OBSERVATIONS OF CELL-SPECIFIC LEUKEMIA MORTALITY IN THE UNITED STATES, 1969–1977

Steve Selvin; Lynn I. Levin; Deane Merrill; Warren Winkelstein


International Journal of Epidemiology | 1988

An Examination of Three Spatial Disease Clustering Methodologies

Gary M. Shaw; Steve Selvin; Swan Shanna H; Deane Merrill; Jane Schulman


International Journal of Hygiene and Environmental Health | 2003

Analysis of the spatial distribution of cryptosporidiosis in AIDS patients in San Francisco using density equalizing map projections (DEMP).

Asheena Khalakdina; Steve Selvin; Deane Merrill; Christine A. Erdmann; John M. Colford


statistical and scientific database management | 1983

Computer-independent data compression for large statistical databases

Fredric C. Gey; John L. McCarthy; Deane Merrill; Harvard Holmes


statistical and scientific database management | 1983

Distributed data management in a minicomputer network: the SEEDIS experience

Deane Merrill; John L. McCarthy; Fredric C. Gey; Harvard Holmes

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Fredric C. Gey

University of California

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Steve Selvin

Lawrence Berkeley National Laboratory

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William H. Benson

Lawrence Berkeley National Laboratory

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Arie Shoshani

Lawrence Berkeley National Laboratory

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Christine A. Erdmann

Lawrence Berkeley National Laboratory

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E. R. Close

Lawrence Berkeley National Laboratory

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Frank Olken

Lawrence Berkeley National Laboratory

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