Data from a questionaire on the benefits of mammography.
Usage
data(mammoexp)
Format
A data frame with 412 observations on the following 6 variables.
ME
Mammograph experience, an ordered factor with
levels Never < Within a Year < Over a Year
SYMPT
Agreement with the statement:
‘You do not need a mamogram unless you develop symptoms.’
A factor with levels Strongly Agree, Agree,
Disagree and Strongly Disagree
PB
Perceived benefit of mammography, the sum of five scaled
responses, each on a four point scale.
A low value is indicative of a woman with strong agreement
with the benefits of mammography.
HIST
Mother or Sister with a history
of breast cancer; a factor with levels No and
Yes.
BSE
Answers to the question:
‘Has anyone taught you how to examine your own breasts?’
A factor with levels No and Yes.
DECT
Answers to the question:
'How likely is it that a mammogram
could find a new case of breast cancer?'
An ordered factor with levels Not likely <
Somewhat likely < Very likely.
Source
Hosmer and Lemeshow (2000). Applied Logistic Regression, 2nd
edition. John Wiley & Sons Inc., New York. Section 8.1.2, page 264.