Table 4.

Comparisons of IL-6 (ng/ml) in the three groups at each time point

Time	Group C, n = 36	Group P, n = 36	Group T, n = 36	Chi-square value	P value
T0	(0.003975,0.015200)	(0.003675,0.014175)	(0.002900,0.012500)	1.728	0.422
T5	(0.018950,0.088600)	(0.014350,0.069775)	(0.012925,0.033750)	5.937	0.051
T6	(0.017500,0.070075)c	(0.022575,0.061775)c	(0.009400,0.019550)abc	28.134	< 0.001

Data were expressed as quartile (25%, 75%)

Note: Compared with groups C and P, at T6, ^aP < 0.05. In Group T: Compared with T5 and T0, ^bP < 0.05; Compared with T5, ^cP < 0.05; Group P: Compared with T5, ^cP > 0.05; Group C: Compared with T5, ^cP > 0.05.