Last data update: 2014.03.03

 R: A Cohort of Nickel Smelters in South Wales
nickelR Documentation

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 in the dataset ewrates.

Format

This data frame contains the following columns:

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)

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)
str(nickel)

Results


R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> library(Epi)

Attaching package: 'Epi'

The following object is masked from 'package:base':

    merge.data.frame

> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/Epi/nickel.Rd_%03d_medium.png", width=480, height=480)
> ### Name: nickel
> ### Title: A Cohort of Nickel Smelters in South Wales
> ### Aliases: nickel
> ### Keywords: datasets
> 
> ### ** Examples
> 
> data(nickel)
> str(nickel)
'data.frame':	679 obs. of  7 variables:
 $ id      : num  3 4 6 8 9 10 15 16 17 18 ...
 $ icd     : num  0 162 163 527 150 163 334 160 420 12 ...
 $ exposure: num  5 5 10 9 0 2 0 0.5 0 0 ...
 $ dob     : num  1889 1886 1881 1886 1880 ...
 $ age1st  : num  17.5 23.2 25.2 24.7 30 ...
 $ agein   : num  45.2 48.3 53 47.9 54.7 ...
 $ ageout  : num  93 63.3 54.2 69.7 76.8 ...
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>


Created & Maintained by Osamu Ogasawara (osamu.ogasawara@gmail.com) and IMSBIO