| CVD {season} | R Documentation |
Cardiovascular Deaths in Los Angeles, 1987–2000
Description
Monthly number of deaths from cardiovascular disease in people aged 75 and over in Los Angeles for the years 1987 to 2000.
Usage
CVD
Format
A data frame with 168 observations on the following 8 variables.
- year
year of death
- month
month of death
- yrmon
a combination of year and month:
year+(month-1)/12- cvd
monthly number of CVD deaths
- tmpd
mean monthly temperature (degrees Fahrenheit)
- pop
Los Angeles population aged 75+ in the year 2000 (this value is constant as only one year was available, but in general the population will (of course) change over time)
- ndaysmonth
number of days in each month (used as an offset)
- adj
adjusted number of CVD deaths per month using a standardised month length. Monthly number of CVD deaths multiplied by (365.25/12)/ndaysmonth. So the standard month length is 30.4 days.
Source
From the NMMAPS study.
References
Samet JM, Dominici F, Zeger SL, Schwartz J, Dockery DW (2000). The National Morbidity, Mortality, and Air Pollution Study, Part I: Methods and Methodologic Issues. Research Report 94, Health Effects Institute, Cambridge MA.
Examples
data(CVD)
plot(CVD$yrmon, CVD$cvd, type='o', xlab='Date',
ylab='Number of CVD deaths per month')