ageHeaping {nipnTK}

Age-heaping analysis

Description

Age heaping is the tendency to report children's ages to the nearest year or adults’ ages to the nearest multiple of five or ten years. Age heaping is very common. This is a major reason why data from nutritional anthropometry surveys is often analysed and reported using broad age groups.

Usage

ageHeaping(x, divisor = 12)

Arguments

x

A vector of ages. Should either be in whole months (integer) or in calculated decimal months (numeric).

divisor

Divisor (usually 5, 6, 10, or 12); default is 12

Value

A list of class "ageHeaping" with:

Variable	Description
X2	Chi-squared test statistic
df	Degrees of freedom or Chi-squared test
p	p-value for Chi-squared test
tab	Table of remainders (for ⁠x \%\%⁠ divisor)
pct	Table of proportions (⁠\%⁠) of remainders for ⁠x \%\%⁠ divisor)

Examples

# Test for age heaping using SMART survey data in Kabul, Afghanistan (dp.ex02)
# using a divisor of 12
svy <- dp.ex02
ah12 <- ageHeaping(svy$age)
ah12

# Test for age heaping using SMART survey data in Kabul, Afthanistan (dp.ex02)
# using a divisor of 6
ah6 <- ageHeaping(svy$age, divisor = 6)
ah6