nickel.expand {ISwR}

Nickel smelters in South Wales, expanded

Description

The data concern a cohort of nickel smelting workers in South Wales, with information on exposure, follow-up period, and cause of death, as in the nickel data. This version has follow-up times split according to age groups and is merged with the mortality rates in ewrates.

Usage

nickel.expand

Format

A data frame with 3724 observations on the following 12 variables:

agr

age class: 10: 10–14, 15: 15–19, ....

ygr

calendar period, 1931: 1931–35, 1936: 1936–40, ... .

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).

lung

lung cancer mortality rate per 1 million person-years.

nasal

nasal cancer mortality rate per 1 million person-years.

other

all cause mortality rate per 1 million person-years.

Source

Computed from nickel and ewrates data sets.