singapore: Case-control study on oesophageal cancer in Chinese Singapore...
In AF: Model-Based Estimation of Confounder-Adjusted Attributable Fractions

Description Usage Format References

This dataset is borrowed from "Aetiological factors in oesophageal cancer in Singapore Chinese" by De Jong UW, Breslow N, Hong JG, Sridharan M, Shanmugaratnam K (1974).

1	data(singapore)

The dataset contains the following variables:

Age: age of the patient.
Dial: dialect group where 1 represent "Hokhien/Teochew" and 0 represent "Cantonese/Other".
Samsu: a numeric indicator of whether the patient consumes Samsu wine or not.
Cigs: number of cigarettes smoked per day.
Bev: number of beverage at "burning hot" temperatures ranging between 0 to 3 different drinks per day.
Everhotbev: a numeric indicator of whether the patients ever drinks "burning hot beverage" or not. Recoded from the variable "Bev".
Set: matched set identification number.
CC: a numeric variable where 1 represent if the patient is a case, 2 represent if the patient is a control from the same ward as the case and 3 represent if the patient is control from orthopedic hospital.
Oesophagealcancer: a numeric indicator variable of whether the patient is a case of oesophageal cancer or not.

The following changes have been made to the data from the original data in De Jong UW (1974):

- The variable "Bev" is recoded into the numeric indicator variable "Everhotbev":

singapore$Everhotbev <- ifelse(singapore$Bev >= 1, 1, 0)

De Jong UW, Breslow N, Hong JG, Sridharan M, Shanmugaratnam K. (1974). Aetiological factors in oesophageal cancer in Singapore Chinese. Int J Cancer Mar 15;13(3), 291-303.

http://faculty.washington.edu/heagerty/Courses/b513/WEB2002/datasets.html

AF documentation built on May 21, 2019, 1:01 a.m.