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Cardiovascular Deaths in Los Angeles, 1987–2000

Source: R/data-season.R
CVD.Rd

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 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


plot(
  CVD$yrmon,
  CVD$cvd,
  type = 'o',
  xlab = 'Date',
  ylab = 'Number of CVD deaths per month'
  )