Fig. 2From: Quality of life and paracetamol in advanced dementia (Q-PID): protocol of a randomised double-blind placebo-controlled crossover trialTime frames (Δ) used in the statistical analysis. R = randomisation. Δ1 = difference in outcomes between baseline and 6 weeks. Participant started with paracetamol. Δ2 = difference in outcomes between 7 weeks and 13 weeks. Participant started with paracetamol. Δ3 = difference in outcomes between baseline and 6 weeks. Participant started with placebo. Δ4 = difference in outcomes between 7 weeks and 13 weeks. Participant started with placeboBack to article page