spirometry: Spirometry Data

In boostmtree: Boosted Multivariate Trees for Longitudinal Data

Spirometry Data

Description

Lung transplant data from 509 patients who underwent lung transplantation (LTx) at the Cleveland Clinic, comprising 9,471 longitudinal measurements of forced expiratory volume in one second (FEV1, expressed as a percentage of predicted). Twenty-three patient and procedure variables were recorded at the time of transplant. The primary objectives are to evaluate the temporal trend of FEV1 following LTx, to identify factors associated with post-LTx FEV1, and to assess differences in trajectories between single and double LTx procedures.

Format

A list containing four elements:

1. The 23 patient variables (features).

2. Time points (time).

3. Unique patient identifier (id).

4. FEV1-outcomes (y).

References

Mason D.P., Rajeswaran J., Li L., Murthy S.C., Su J.W., Pettersson G.B., Blackstone E.H. Effect of changes in postoperative spirometry on survival after lung transplantation. J. Thorac. Cardiovasc. Surg., 144:197-203, 2012.

Examples

data(spirometry, package = "boostmtree")

boostmtree documentation built on April 10, 2026, 9:10 a.m.