Table III.

Mean and SD for objective preoperative parameters.

	Group A (n = 20)		Group B (n = 20)
	Mean	SD	Mean	SD	p-value
Adenoid grade	3.3	0.47	3.45	0.51	ns**
Rhinomanometry (Pa/cm3/sec)
Basal	1.22	0.04	1.31	1.04	ns*
After nasal decongestion test	0.97	0.02	0.97	0.02	ns*

^*Using t-test with equal variances;

^**using two-tailed Mann Whitney test.