Data from Age-Related Macular Degeneration (ARMD) clinical trial
armd0A data frame with 1107 rows and 8 columns:
A factor with 240 levels: 1, 2, 3, 4, 5, ...
A factor with 2 levels: Placebo, Active
An integer vector with values from 20 to 85
A factor with 9 levels: ----, ---X, --X-, --XX, -XX-, ...
A factor with 5 levels: Baseline, 4wks, 12wks, 24wks, 52wks
A numeric vector with values from 0 to 52
An integer vector with values from 3 to 85
A numeric vector with values from 0 to 4
Pharmacological Therapy for Macular Degeneration Study Group (1997). Interferon alpha-IIA is ineffective for patients with choroidal neovascularization secondary to age-related macular degeneration. Results of a prospective randomized placebo-controlled clinical trial. Archives of Ophthalmology, 115, 865-872.
The ARMD data arise from a randomized multi-center clinical trial comparing an experimental treatment (interferon-alpha) versus placebo for patients diagnosed with ARMD.
data(armd0, package = "nlmeU")
summary(armd0)
#> subject treat.f visual0 miss.pat time.f
#> 2 : 5 Placebo:570 Min. :20.00 ---- :940 Baseline:240
#> 4 : 5 Active :537 1st Qu.:45.00 ---X : 96 4wks :231
#> 6 : 5 Median :56.00 --XX : 24 12wks :227
#> 7 : 5 Mean :54.91 --X- : 16 24wks :214
#> 8 : 5 3rd Qu.:66.00 -XXX : 12 52wks :195
#> 9 : 5 Max. :85.00 X--- : 8
#> (Other):1077 (Other): 11
#> time visual tp
#> Min. : 0.00 Min. : 3.00 Min. :0.000
#> 1st Qu.: 4.00 1st Qu.:37.00 1st Qu.:1.000
#> Median :12.00 Median :51.00 Median :2.000
#> Mean :17.09 Mean :49.86 Mean :1.903
#> 3rd Qu.:24.00 3rd Qu.:63.00 3rd Qu.:3.000
#> Max. :52.00 Max. :85.00 Max. :4.000
#>