Table 4. Differences between pain and MME/day before and after ESP block.

	Mean	Median	Standard Deviation	Minimum	Maximum	IQR	P-value
Before VAS (average)	5.3	6.0	2.1	1.0	8.7	2.7	0.001*
After VAS (average)	2.7	2.3	1.9	0.0	6.0	3.1
Before MME/day (mg)	105.2	108.8	59.6	12.5	224.0	85.5	0.007*
After (MME/day) (mg)	85.8	90.8	49.1	0.0	166.0	86.3