Calculate number of days lost

Calculate the number of days lost due to a sports-related health problem (e.g. injuries) in a cohort during a period.

Usage

calc_ndayslost(injd, by = NULL, overall = TRUE)

Arguments

injd

injd S3 object (see prepare_all()).

by

Character specifying the name of the column according to which compute summary statistics. It should refer to a (categorical) variable that describes a grouping factor (e.g. "type of case or injury", "injury location", "sports club"). Optional, defaults to NULL.

overall

Logical, whether to calculate overall (for all the cohort) or athlete-wise summary statistic (i.e. number of cases per cohort of per athlete). Defaults to TRUE.

Value

The number of days lost. Either a numeric value (if overall TRUE) or a data frame indicating the number of cases per athlete.

Examples

calc_ndayslost(injd)
#> ndayslost 
#>      2049 
calc_ndayslost(injd, overall = FALSE)
#> # A tibble: 28 × 2
#>    person_id               ndayslost
#>    <fct>                       <dbl>
#>  1 adam-lallana                  302
#>  2 alberto-moreno                 50
#>  3 alex-oxlade-chamberlain       316
#>  4 alisson                         0
#>  5 andrew-robertson               22
#>  6 daniel-sturridge              122
#>  7 danny-ings                      0
#>  8 dejan-lovren                  160
#>  9 divock-origi                    5
#> 10 dominic-solanke                 0
#> # ℹ 18 more rows
calc_ndayslost(injd, by = "injury_type")
#> # A tibble: 5 × 2
#>   injury_type ndayslost
#>   <fct>           <dbl>
#> 1 Bone              173
#> 2 Concussion        213
#> 3 Ligament          596
#> 4 Muscle            735
#> 5 Unknown           332