Group B Group BF Group BC p value Grade I II III IV V I II III IV V I II III IV V 0 min 25 - - - - 25 - - - - 25 - - - - - 15 min 25 - - - - 25 - - - - 14 11 - - - B vs. BF (-) B vs. BC (S) BF vs. BC (S) 30 min 25 - - - - 25 - - - - 5 16 4 - - B vs. BF (-) B vs. BC (S) BF vs. BC (S) 1 hr 25 - - - - 25 - - - - 8 14 3 - - B vs. BF (-) B vs. BC (S) BF vs. BC (S) 2 hr 25 - - - - 25 - - - - 11 11 2 1 - B vs. BF (-) B vs. BC (S) BF vs. BC (S) 4 hr 16 - 9 - - 20 - 5 - - 12 4 6 3 - B vs. BF (NS) B vs. BC (S) BF vs. BC (S) 8 hr 17 - 8 - - 20 - 5 - - 2 16 6 1 - B vs. BF (NS) B vs. BC (S) BF vs. BC (S) 12 hr 13 - 12 - - 14 - 11 - - 11 8 4 2 - B vs. BF (NS) B vs. BC (S) BF vs. BC (S) 18 hr 14 - 11 - - 19 - 6 - - 8 11 6 - - B vs. BF (NS) B vs. BC (S) BF vs. BC (S) 24 hr 25 - - - - 25 - - - - 13 12 - - - B vs. BF (-) B vs. BC (S) BF vs. BC (S) *Sedation Scale I: Awake and fully alert; II: Awake but drowsy; III: Sleeping but easily arousable; IV: Sleeping but difficult to arouse; V: Unresponsive to verbal or tactile commands.

Table 4: Sedation* (No. of patients in each sedation grade).