Table 2.

Mean Baseline Clinical Characteristics of the Study Groups

Parameter	Test (N = 15)	Control (N = 15)	P Value*
Age (years; mean ± SEM [range])	49.40 ± 7.81 (35 to 65)	52.00 ± 8.36 (36 to 67)	NS
Male/female ratio	2:3	11:4	NS
PD (mm; mean ± SEM)	Overall: 2.95 ± 0.36	Overall: 3.11 ± 0.63	NS
	Sx teeth: 3.10 ± 0.34	Sx-teeth: 3.21 ± 0.65	NS
	Non-sx teeth: 2.80 ± 0.32	Non-sx teeth: 3.01 ± 0.62	NS
CAL (mm; mean ± SEM)	Overall: 3.12 ± 0.78	Overall: 3.58 ± 1.17	NS
	Sx teeth: 3.26 ± 0.72	Sx teeth: 3.59 ± 1.13	NS
	Non-sx teeth: 2.96 ± 0.84	Non-sx teeth: 3.57 ± 1.26	NS
BOP (% of sites; mean ± SEM)	Overall: 57.52 ± 20.71	Overall: 54.50 ± 21.63	NS
	Sx teeth: 65.60 ± 21.35	Sx teeth: 61.46 ± 20.47	NS
	Non-sx teeth: 48.87 ± 16.65	Non-sx teeth: 47.54 ± 21.12	NS
ICTP (pg/site; mean ± SEM)	11.43 ± 13.62	22.92 ± 64.41	NS
BANA score (mean ± SEM)	0.87 ± 0.48	1.00 ± 0.60	NS

NS = not statistically significant; sx = surgery.

^*Based on the non-parametric Mann-Whitney test.