Outbreak investigation {epicalc} | R Documentation |
Dataset from an outbreak of food poisoning on a sportsday, Thailand 1990.
Description
A dataset from an outbreak investigation concerning food poisoning in a sportsday, Thailand 1990.
Dichotomous variables for exposures and symptoms were coded as the following:
| 0 | = no |
| 1 | = yes |
| 9 | = missing or unknown |
Usage
data(Outbreak)
Format
A data frame with 1094 observations on the following 13 variables.
id
- a numeric vector
sex
- a numeric vector
age
- a numeric vector: age in years
exptime
- a AsIs or character: exposure time
beefcurry
- a numeric vector: whether the subject had eaten beefcurry
saltegg
- a numeric vector: whether the subject had eaten saltegg
eclair
- a numeric vector: pieces of eclair eaten
| 80 | = ate but not remember how much |
| 90 | = totally missing information |
water
- a numeric vector: whether the subject had drunken water
onset
- a AsIs or character: onset time
nausea
- a numeric vector
vomiting
- a numeric vector
abdpain
- a numeric vector: abdominal pain
diarrhea
- a numeric vector
References
Thaikruea, L., Pataraarechachai, J., Savanpunyalert, P., Naluponjiragul, U. 1995
An unusual outbreak of food poisoning. Southeast Asian J Trop Med Public Health
26(1):78-85.
Examples
data(Outbreak)
use(Outbreak)
# Distribution of reported pieces of eclair taken
tab1(eclair)
# Defining missing value
recode(eclair, eclair>20, NA)
pieces.of.eclair <- cut(eclair, c(0,1,2,20))
tabpct(pieces.of.eclair, diarrhea)
[Package
epicalc version 2.6.0.5
Index]