Epi (version 0.1)

nickel: A Cohort of Nickel Smelters in South Wales

Description

The nickel data frame has 679 rows and 7 columns. The data concern a cohort of nickel smelting workers in South Wales and are taken from Breslow and Day, Volume 2. For comparison purposes, England and Wales mortality rates (per 1,000,000 per annum) from lung cancer (ICDs 162 and 163), nasal cancer (ICD 160), and all causes, by age group and calendar period, are supplied as the matrices ew.lung, ew.nasal, and ew.all respectively.

Arguments

id

Subject identifier (numeric)

icd

ICD cause of death if dead, 0 otherwise (numeric)

exposure

Exposure index for workplace (numeric)

dob

Date of birth (numeric)

age1st

Age at first exposure (numeric)

agein

Age at start of follow-up (numeric)

ageout

Age at end of follow-up (numeric)

format

This data frame contains the following columns:

source

Breslow NE, and Day N, Statistical Methods in Cancer Research. Volume II: The Design and Analysis of Cohort Studies. IARC Scientific Publications, IARC:Lyon, 1987.

Examples

data(nickel)