toenail {gammSlice}

Toenail infection clinical trial

Description

Data from a clinical trial in which two anti-fungal treatments for toenail infection are compared.

Usage

data(toenail)

Format

A data frame with 1908 observations on the following 5 variables:

idnum

patient identification number.

onycholysis

indicator concerning the severity of onycholysis:
1 = moderate or severe onycholysis,
0 = no or mild onycholysis.

terb

indicator of whether the treatement was terbinafine:
1 = treatment was terbinafine,
0 = treatment was itraconazole.

months

time in months since the the start of the trial when clinical visit took place.

visit

visit number.

References

De Backer, M., De Vroey, C., Lesaffre, E., Scheys, I. and De Keyser, P. (1998). Twelve weeks of continuous oral therapy for toenail onychomycosis caused by dermatophytes: a double-blind comparative trial of terbinafine 250 mg/day versus itraconazole 200 mg/day. Journal of the American Academy of Dermatology, 38, S57-S63.

Examples

library(gammSlice) ; data(toenail)
plot(jitter(toenail$terb),jitter(toenail$onycholysis))