SocEpi (version 1.0.0)

st_rate: Standardized mortality rates and confidence intervals

Description

st_rate calculates direct standardized mortality rates and the 95% or 99% confidence intervals. Default standardization uses the 2013 European Standard Population, but other built-in or user supplied weights can also be supplied.

Usage

st_rate(
  data,
  health,
  population,
  ses,
  age,
  groups = NULL,
  age_group = NULL,
  st_pop = "esp2013_18ag",
  CI = 95,
  total = 1000
)

Arguments

data

Name of data set.

health

Health outcome of interest.

population

Population counts. Should correspond to data provided in health.

ses

Categorical deprivation measure used for splitting the data.

age

Variable that defines 5-year age groups, should be ordered and numeric, such as 1 through 18. If the age group coding starts with 0 it will be assumed that age groups 0 and 1-4 are separate. If the age group starts with 1, it will be assumed that the first age group is 0-4 (ages 0 and 1-4 are combined).

groups

Conditions such as sex or ethnicity that together define the sub-population for which the rates are calculated for. Default is NULL, no sub-population is selected.

age_group

The age groups the standardized rates should be calculated for. By default the function calculates results for the following age groups: 0-14, 15-29, 30-44, 45-59, 60-74, 75+, 0-64 and all ages. User supplied age groups should be provided using the standard population groups as cut-offs, e.g. use age_group=c("20-29", "30-39") and not c("19-30", "31-41"). Open ended age groups can be supplied by giving a single age, e.g. "45" means 45 and above. Overlapping age groups, such as c("20-29", "25-34"), are not supported. Results for ages 0-64 and all ages will always be provided.

st_pop

The standard population weights used for calculating rates, default 2013 ESP for 18 age groups with 0-4 as the first age group. See st_pop for other predefined options. Can be user supplied, but must match the number of age groups given in age and add up to 1.

CI

Confidence intervals, 95 by default but can be set to any number between 0 and 100.

total

The total number of people in the standard population, i.e. are rates be calculated per 1000 or 100 000, default 1000

Value

A data frame giving standardized rates by age group and deprivation together with CI.

Examples

# NOT RUN {
d <- health_data

# Standardized rates for all people
st_rate(d, bad, pop, quintile, age, ethnicity == "all")

# Or save results
rate_data <- st_rate(d, bad, pop, quintile, age, ethnicity == "all")
# Then use View(rate_data) to view results

# Standardized rates for Scottish, with 99% CI
st_rate(d, bad, pop, quintile, age, ethnicity == "Scot", age_group = c("15-29", "30-44"), CI = 99)

# }