Epi (version 2.0)

bdendo: A case-control study of endometrial cancer

Description

The bdendo data frame has 315 rows and 13 columns. These data concern a study in which each case of endometrial cancer was matched with 4 controls. Matching was by date of birth (within one year), marital status, and residence.

Format

This data frame contains the following columns:

set:

Case-control set: a numeric vector

d:

Case or control: a numeric vector (1=case, 0=control)

gall:

Gall bladder disease: a factor with levels No Yes.

hyp:

Hypertension: a factor with levels No Yes.

ob:

Obesity: a factor with levels No Yes.

est:

A factor with levels No Yes.

dur:

Duration of conjugated oestrogen therapy: an ordered factor with levels 0 < 1 < 2 < 3 < 4.

non:

Use of non oestrogen drugs: a factor with levels No Yes.

duration:

Months of oestrogen therapy: a numeric vector.

age:

A numeric vector.

cest:

Conjugated oestrogen dose: an ordered factor with levels 0 < 1 < 2 < 3.

agegrp:

A factor with levels 55-59 60-64 65-69 70-74 75-79 80-84

age3:

a factor with levels <64< code=""> 65-74 75+

Source

Breslow NE, and Day N, Statistical Methods in Cancer Research. Volume I: The Analysis of Case-Control Studies. IARC Scientific Publications, IARC:Lyon, 1980.

Examples

data(bdendo)