Table 1.

Descriptive statistics comparing all baseline participants (baseline characteristics)with participants retained for these analyses (baseline and follow-up characteristics), reported as %, mean ± SD, or median with 25^th and 75^th percentiles

	All baseline (N=1,206a)	Retained in analysis Baseline (N=941a)	Follow-up Characteristics (N=941a)
Age (years)	50.4 ± 6.8	50.6 ± 6.8	53.5 ± 6.8
Male	27.3	25.8	25.8
Current smoker	19.2	18.3	19.1
Annual income (<$20,000)	56.1	54.1	55.5
Education
Less than high school	12.2	10.8	-
High school diploma	43.0	42.8	-
More than high school	44.8	46.5	-
Physical activity (METs)	7.9 (0, 26.7)	7.9 (0, 26.9)	10 (0.3, 32.6)
Obese	63.7	63.7	65.4
Waist circumference (cm)	106.3 ± 14.4	106.0 ± 14.2	105.7 ± 15.0
Alcohol (g/day)	2.3 ± 5.8	2.2 ± 5.7	2.3 ± 5.5
Sleep breathing disorderb	15.6	16.8	20.1
Hypertension statusc
Elevated Blood Pressure	31.8	31.1	15.0
Hypertension	45.2	46.3	56.9
Pre-diabetes	57.5	56.7	52.0
Diabetes	Excluded	Excluded	6.0
High-sensitivity C-reactive protein (mmol/L)	5.7 ± 6.3	5.5 ± 6.2	5.1 ± 5.9
HOMA-IR	2.5 ± 1.7	2.5 ± 1.7	2.9 ± 2.4
Plaque score	0.8 ± 0.6	0.8 ± 0.6	0.8 ± 0.6
Number of surfaces bleeding on probing	13.0 ± 12.3	12.6 ± 12.0	10.6 ± 11.0
Periodontitisd (moderate/severe)	65.8	63.1	58.6
Mean CAL (mm)	2.0±1.3	1.9 ± 1.2	1.9 ± 1.2
Number of teeth	23.3 ± 4.6	23.6 ± 4.4	23.0 ± 4.8

^aSample size reduces for some variables as per the available data.

^bSleep breathing disorder was defined as apnea or report of quitting breathing while sleeping.

^cHypertension if reported physician diagnosis of hypertension, and/or high blood pressure with systolic blood pressure ≥ 130 mm Hg or diastolic blood pressure ≥ 80 mm Hg; elevated blood pressure if no hypertension and systolic blood pressure between 120 and 130 mm Hg and diastolic blood pressure < 80 mm Hg.

^dPeriodontal disease was classified using the CDC-AAP definition.