Table 1.

General Characteristics by Baseline Tooth Loss Status (unweighted): The First National Health and Nutrition Examination Survey and Its Epidemiologic Follow-up Study (n=9702)

Characteristic	0–4 Missing Teeth (n=2029)	5–8 Missing Teeth (n=1990)	9–14 Missing Teeth (n=1559)	15–31 Missing Teeth (n=1814)	Edentulous (n=2310)
Age (years)^*	38±0.3	45±0.3	50±0.3	55±0.3	62±0.3
Female (%)^*	61	63	61	59	58
Race (%)^*
White	84	85	79	81	87
Black	15	14	19	19	13
Other	1	1	2	0	0
Education (%)^*
≤ 8^th grade	15	17	25	37	51
9^th – 12^th grade	48	55	56	50	41
Some College	27	23	15	11	7
College Graduate	10	6	3	2	1
Smoking Status (%)^*
Never	48	46	44	45	48
Former	19	21	19	19	18
Current	32	30	32	29	24
Ever Smokers (baseline status unknown)	1	2	5	7	11
Pack Years of Smoking^*^†	7.5±0.5	9.5±0.5	12.2±0.6	14.4±0.5	15.0±0.5
Systolic Blood Pressure^*^†	125±0.5	130±0.5	136±0.6	139±0.6	145±0.5
Diastolic Blood Pressure^*^†	80±0.3	82±0.3	85±0.3	85±0.3	86±0.3
White Blood Cell Count (cells/mm³)^†	7.5±0.05	7.5±0.05	7.5±0.06	7.4±0.06	7.4±0.05
Periodontal Index^*	0.70±.04	1.01±.04	1.77±.04	2.55±.04	Not applicable

p-value <0.05;

^†

subsamples due to missing data: n=8,614 with pack years data; n=9,663 with systolic blood pressure data; n=9,662 with diastolic blood pressure data; n=8,654 with white blood cell count data