serosv (version 1.1.0)

tb_nl_1966_1973: Tuberculosis serological data from the Netherlands 1966-1973 (aggregated)

Description

A study of tuberculosis conducted in the Netherlands. Schoolchildren, aged between 6 and 18 years, were tested using the tuberculin skin test.

Usage

tb_nl_1966_1973

Format

A data frame with 5 variables:

age

Age group

pos

Number of seropositive individuals

tot

Total number of individuals surveyed

gender

Gender of cohort (unsure what 0 and 1 means)

birthyr

Birth year of cohort

Examples

# Reproduce Fig 4.6, p.70
age <- tb_nl_1966_1973$age
birthyr <- tb_nl_1966_1973$birthyr
pos <- tb_nl_1966_1973$pos
tot <- tb_nl_1966_1973$tot
# left panel
plot(age, pos / tot,
  pch = 16, cex = 0.00005 * tot, xlab = "age",
  ylab = "prevalence", xlim = c(6, 18)
)
# right panel
plot(birthyr, pos / tot,
  pch = 16, cex = 0.00005 * tot, xlab = "year", ylab = "prevalence"
)