question: Compared to PF alone (PF group) what was the result of combination of propofol (PF) and dexmedetomidine (DEX) (Combination group) on the number of times a rescue PF injection?
context: The percentage of patients who showed restlessness was lower in the Combination group than in the PF group; however, there was no statistically significant difference between the two groups (6.9 % vs. 24.1 %,
  P
   = 0.144).