fev_data {mmrm} | R Documentation |
fev_data
A tibble
with 800 rows and 7 variables:
USUBJID
: subject ID.
AVISIT
: visit number.
ARMCD
: treatment, TRT
or PBO
.
RACE
: 3-category race.
SEX
: sex.
FEV1_BL
: FEV1 at baseline (%).
FEV1
: FEV1 at study visits.
WEIGHT
: weighting variable.
VISITN
: integer order of the visit.
VISITN2
: coordinates of the visit for distance calculation.
Measurements of FEV1 (forced expired volume in one second) is a measure of how quickly the lungs can be emptied. Low levels of FEV1 may indicate chronic obstructive pulmonary disease (COPD).
This is an artificial dataset.