round_age {pedalfast.data}

Round Age

Description

Round age per FITBIR guidelines

Usage

round_age(x, type = "character")

Arguments

x

a numeric vector

type

defaults to character (default), also accepts numeric.

Details

FITBIR Definition for the "AgeYrs" data element: Value for participant's subject age, calculated as elapsed time since the birth of the participant/subject in years. The subjects age is typically recorded to the nearest full year completed, e.g. 11 years and 6 months should be recorded as 11 years.

Guidelines & Instructions: The subject's age is typically recorded to the nearest full year completed, e.g. 11 years and 6 months should be recorded as 11 years. For subject's which are under 1 year old, use decimal points and use the following convention- record 1 month as 0.083 (1/12), 2 months as 0.166 (2/12), 3 months as 0.25 (3/12), 4 months as 0.333 (4/12), 5 months as 0.416 (5/12), 6 months as 0.5 (6/12), 7 months as 0.583 (7/12), 8 months as 0.666 (8/12), 9 months as 0.75 (9/12), 10 months as 0.833 (10/12), 11 months as 0.916 (11/12) and 12 months as 1 year. For the individuals 90 or older, in order to preserve PII, please submit "150" and make a note this in the "general notes" column.

Value

a character or numeric vector depending on the value of type.

Examples

ages <- c(92, 12.12, 89 + 10/12, 9.12, 9.73, 1.1, 1.75, ( 1:11 + 0.05 ) / 12,
2, 90)

round_age(ages)
round_age(ages, "numeric")