In the primary crossover analysis , blocks performed with sedation resulted in a larger mean reduction in pain diary score than those done without sedation ( 1.2 [ 2.6 ] ; P = 0.006 ) , less procedure-related pain ( difference in means 2.3 [ 2.5 ] ; P < 0.0001 ) , and a higher proportion of patients who obtained > 50 % pain relief on their pain diaries ( 70 % vs. 54 % ; P = 0.039 ) .