. 2016 Jan 5;11(1):e0146400. doi: 10.1371/journal.pone.0146400

Table 5. The results of analysis of correlation between postoperative time, NPS, serum SP (SP) and SP drainage (SP dr).

Parameter	Time	NPS	SP	SP dr
Time	1.000
NPS	0.219^a	1.000
SP	-0.224^a	0.504^a	1.000
SP dr	-0.056	0.085	0.021	1.000

^a correlation with P < 0.05.