Data for the smoking cessation NMA-network discussed in Dias et al. (2010)

The smoking cessation dataset describes a network comparing 4 treatments with 24 trials. There are 22 pairwise comparisons and 2 thee-arm trials.

Smokdat

Format

A data frame with 24 observations on the following 10 variables.

r1

Number of events (responses) in the baseline treatment (treatment 1).

r2

Number of events (responses) in the second study arm treatment (treatment 2).

r3

Number of events (responses) in the third study arm treatment (treatment 3).

n1

Total number of study participants in the baseline treatment (treatment 1).

n2

Total number of study participants in the second study arm treatment (treatment 2).

n3

Total number of study participants in the second study arm treatment (treatment 3).

t1

Indicator variable identifying treatment 1.

t2

Indicator variable identifying treatment 2.

t3

Indicator variable identifying treatment 3.

na

Indicator with number of arms in trial.

des

Design, the set of treatments included in each study

Source

Dias, S., Welton, N. J., Caldwell, D. M. and Ades, A. E. (2010) Checking consistency in mixed treatment comparison meta-analysis, Statistics in Medicine, 29:932--944.