Table 2 Possible presentation of baseline characteristics in two-period two-intervention cluster randomised crossover trial
| Characteristic | Intervention sequence AB | Intervention sequence BA | ||
|---|---|---|---|---|
|
Period 1–Intervention A Group 1 |
Period 2–Intervention B Group 2 |
Period 1–Intervention B Group 3 |
Period 2–Intervention A Group 4 | |
| Time-invariant characteristics | ||||
| Time-invariant cluster characteristic |
Such as proportion of each ward type: Cardiac: 25% Intensive Care: 40% Neurology: 35% |
Such as proportion of each ward type: Cardiac: 25% Intensive Care: 40% Neurology: 35% |
Such as proportion of each ward type: Cardiac: 35% Intensive Care: 45% Neurology: 20% |
Such as proportion of each ward type: Cardiac: 35% Intensive Care: 45% Neurology: 20% |
| Time-invariant participant characteristic (cohort design only) |
Such as patient sex: 59% male |
Such as patient sex: 59% male |
Such as patient sex: 48% male |
Such as patient sex: 48% male |
| Time-varying characteristics | ||||
| Time-varying cluster characteristic |
Nurse-to-patient ratio over 24 h, Median (IQR): 2.1 (2.0 – 2.2) |
Nurse-to-patient ratio over 24 h, Median (IQR): 2.0 (1.9 – 2.1) |
Nurse-to-patient ratio over 24 h, Median (IQR): 2.3 (2.1 – 2.4) |
Nurse-to-patient ratio over 24 h, Median (IQR): 2.2 (2.1 – 2.4) |
| Time-varying participant characteristic (cohort and repeated cross-sectional design) |
Such as patient weight (kg), Mean (SD): 83.4 (14.2) |
Such as patient weight (kg), Mean (SD): 78.9 (15.6) |
Such as patient weight (kg), Mean (SD): 81.2 (13.2) |
Such as patient weight (kg), Mean (SD): 80.4 (11.2) |