AN EFFICIENT SAS PROGRAM FOR EXACT STRATIFICATION OF PERSON-YEARS

Authors
SUN J SHIBATA E KAMIJIMA M TOIDA M TAKEUCH Y
Citation
J. Sun et al., AN EFFICIENT SAS PROGRAM FOR EXACT STRATIFICATION OF PERSON-YEARS, Computers in biology and medicine, 27(1), 1997, pp. 49-53
Citations number
8
Categorie Soggetti
Mathematical Methods, Biology & Medicine","Engineering, Biomedical","Computer Science Interdisciplinary Applications
Journal title
Computers in biology and medicine → ACNP
ISSN journal
00104825
Volume
27
Issue
1
Year of publication
1997
Pages
49 - 53
Database
ISI
SICI code
0010-4825(1997)27:1<49:AESPFE>2.0.ZU;2-6
Abstract
An efficient Statistical Analysis System computer program for the exac t stratification of person-years is described, in order to determine t he expected number of deaths or cases of diseases in a cohort for the calculation of standardized mortality ratios or standardized morbidity ratios. A comparison of this program with Macaluso's ''Method B'' pro gram shows that the speed of the former is considerably faster than th at of the latter, when the widths of the categories defined by all of the time factors are identical. (C) 1997 Elsevier Science Ltd.