Add event N

Add event N

add_nevent(x, ...)

# S3 method for class 'tbl_regression'
add_nevent(x, location = "label", ...)

# S3 method for class 'tbl_uvregression'
add_nevent(x, location = "label", ...)

Arguments

x

(tbl_regression, tbl_uvregression)
a tbl_regression or tbl_uvregression table

...

These dots are for future extensions and must be empty.

location

(character)
location to place Ns. Select one or more of c('label', 'level'). Default is 'label'.

When "label" total Ns are placed on each variable's label row. When "level" level counts are placed on the variable level for categorical variables, and total N on the variable's label row for continuous.

Examples

# Example 1 ----------------------------------
trial |>
  select(response, trt, grade) |>
  tbl_uvregression(
    y = response,
    exponentiate = TRUE,
    method = glm,
    method.args = list(family = binomial),
  ) |>
  add_nevent()


  
Characteristic
      
N
      
Event N
      
OR
      
95% CI
      
p-value
    
Chemotherapy Treatment
193
61





    Drug A




—
—

    Drug B




1.21
0.66, 2.24
0.5
Grade
193
61





    I




—
—

    II




0.95
0.45, 2.00
0.9
    III




1.10
0.52, 2.29
0.8
Abbreviations: CI = Confidence Interval, OR = Odds Ratio
    

# Example 2 ----------------------------------
glm(response ~ age + grade, trial, family = binomial) |>
  tbl_regression(exponentiate = TRUE) |>
  add_nevent(location = "level")


  
Characteristic
      
Event N
      
OR
      
95% CI
      
p-value
    
Age
58
1.02
1.00, 1.04
0.10
Grade







    I
21
—
—

    II
17
0.85
0.39, 1.85
0.7
    III
20
1.01
0.47, 2.16
>0.9
Abbreviations: CI = Confidence Interval, OR = Odds Ratio