fev_data {mmrm}

Example Data on FEV1

Description

Usage

fev_data

Format

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.

Note

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).

Source

This is an artificial dataset.