Load and return assay of serum free light chain for 7874 subjects.

The dataset has 7874 samples and 9 features:

  1. age: age in years
  2. sex: F=female, M=male
  3. sample.yr: the calendar year in which a blood sample was obtained
  4. kappa: serum free light chain, kappa portion
  5. lambda: serum free light chain, lambda portion
  6. flc.grp: the serum free light chain group for the subject, as used in the original analysis
  7. creatinine: serum creatinine
  8. mgus: whether the subject had been diagnosed with monoclonal gammapothy (MGUS)
  9. chapter: for those who died, a grouping of their primary cause of death by chapter headings of the International Code of Diseases ICD-9

The endpoint is death, which occurred for 2169 subjects (27.5%).

See [1], [2] for further description.

  • x (pandas.DataFrame) – The measurements for each patient.
  • y (structured array with 2 fields) – death: boolean indicating whether the subject died or the event time is right censored.

    futime: total length of follow-up or time of death.


[2]Dispenzieri, A., Katzmann, J., Kyle, R., Larson, D., Therneau, T., Colby, C., Clark, R., Mead, G., Kumar, S., Melton III, LJ. and Rajkumar, SV. Use of monclonal serum immunoglobulin free light chains to predict overall survival in the general population, Mayo Clinic Proceedings 87:512-523. (2012)