Table 2.

P-Values for Endpoint Pain Relief for ASA/PSE Comparisons

Outcome	Comparison	0–4 hours	Day 3
Total pain relief (TOTPAR)a	ASA/PSE versus PSE	0.019b	0.348
	ASA/PSE versus ASA	0.326	0.614
	ASA/PSE versus Placebo	<0.001	0.220
Sum of pain intensity differences (SPID)a	ASA/PSE versus PSE	0.085	0.205
	ASA/PSE versus ASA	0.748	0.876
	ASA/PSE versus Placebo	0.421	0.946
Global pain relief	ASA/PSE versus PSE	n.a.	0.043
	ASA/PSE versus ASA	n.a.	0.828
	ASA/PSE versus Placebo	n.a.	0.078

n.a. not applicable.

^aMann–Whitney U-test.

^bPrimary endpoint.