hav_bg_1964 {serosv} | R Documentation |
Hepatitis A serological data from Bulgaria in 1964 (aggregated)
Description
A cross-sectional survey conducted in 1964 in Bulgaria. Samples were collected from schoolchildren and blood donors.
Usage
hav_bg_1964
Format
A data frame with 3 variables:
- age
Age group
- pos
Number of seropositive individuals
- tot
Total number of individuals surveyed
Source
Keiding, Niels. "Age-Specific Incidence and Prevalence: A Statistical Perspective." Journal of the Royal Statistical Society. Series A (Statistics in Society) 154, no. 3 (1991): 371-412. doi:10.2307/2983150
Examples
# Reproduce Fig 4.1 (lower panel), p. 63
age <- hav_bg_1964$age
pos <- hav_bg_1964$pos
tot <- hav_bg_1964$tot
plot(
age, pos / tot,
pty = "s", cex = 0.08 * tot, pch = 16, xlab = "age",
ylab = "seroprevalence", xlim = c(0, 86), ylim = c(0, 1)
)
[Package serosv version 1.1.0 Index]