nickel {ISwR}

Nickel smelters in South Wales

Description

The data concern a cohort of nickel smelting workers in South Wales, with information on exposure, follow-up period, and cause of death.

Usage

nickel

Format

A data frame containing 679 observations of the following 7 variables:

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).

Details

Taken from the “Epi” package by Bendix Carstensen et al. 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 in the data set ewrates.

Source

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