Table 1.

Study demographics.

	H	G	P1	P2	P3	p-value
Female (n)	23	23	23	23	20
Male (n)	10	11	10	11	14	0.87
African American (n)	21	26	23	16	15
Caucasian (n)	7	6	7	17	14
Other (n)	5	2	3	1	4	0.03
Diabetic (n)	3	0	1	1	2
No (n)	30	34	32	33	32	0.41
Current Smoker (n)	3	5	7	3	3
No (n)	30	29	26	31	30	0.47
Mean (StdErr) Age	30.3 (1.9)	29.6 (1.9)	36.5 (1.9)	37.0 (1.9)	34.4 (1.9)	0.01
Mean (StdErr) BMI	28.1 (1.3)	24.5 (1.2)	27.4 (1.3)	30.7 (1.2)	29.6 (1.2)	0.008

BGI-Healthy: H; BGI-Gingivitis: G; BGI-P1: P1; BGI-P2: P2; BGI-P3: P3; n: number of patients; StdErr: Standard error; BMI: Body mass index.