The respiratory dataset originates from a randomized clinical trial that evaluated a test treatment against a control in managing a chronic respiratory condition koch_1989,stokes_2012winr. The study involved 111 patients—54 receiving the active treatment and 57 on a placebo—distributed across two centers. Assessments were conducted at baseline and during four subsequent follow-up visits. At each visit, patients' respiratory status was evaluated using an ordinal scale where 0 signifies `terrible', 1 is `poor', 2 stands for `fair', 3 represents `good', and 4 denotes `excellent'. The participating centers serve as stratification factors, and the baseline variables include age, sex, and initial respiratory status.
respA data frame with 10 variables.
ID: Participant ID
Center: Treatment center
Sex: Participant sex at birth
Age: Participant age at baseline
Treatment: T=treatment arm, C=control arm
Baseline: Ordinal global rating at Baseline: 0 for terrible, 1 for poor, 2 for fair,
3 for good, and 4 for excellent
Visit1: Ordinal global rating at Visit 1: 0 for terrible, 1 for poor, 2 for fair,
3 for good, and 4 for excellent
Visit2: Ordinal global rating at Visit 2: 0 for terrible, 1 for poor, 2 for fair,
3 for good, and 4 for excellent
Visit3: Ordinal global rating at Visit 3: 0 for terrible, 1 for poor, 2 for fair,
3 for good, and 4 for excellent
Visit4: Ordinal global rating at Visit 4: 0 for terrible, 1 for poor, 2 for fair,
3 for good, and 4 for excellent