Table 3.

Prevalence of clinical attachment loss (CAL) by severity and overall mean CAL by selected characteristics for persons 30 years and older, United States, NHANES 2009 – 2012

	Severity of Clinical Attachment Loss (CAL)										Mean CAL mm	SE
	≥3mm	SE	≥4mm	SE	≥5mm	SE	≥6mm	SE	≥7mm	SE
Total	88.1	0.8	60.8	1.6	40.9	1.4	24.2	1.0	14.7	0.6	1.72	0.03
Age (Mean:24.0 teeth)
30–34 years (26.5 teeth)	72.3	1.8	32.6	2.3	16.4	1.8	8.3	1.0	3.2	0.7	1.23	0.04
35–49 years (25.5 teeth)	85.7	1.1	51.8	2.2	32.4	1.9	17.0	1.2	10.4	0.8	1.52	0.04
50–64 years (23.2 teeth)	92.6	1.3	71.4	1.8	49.0	2.0	30.1	1.8	18.8	1.0	1.94	0.06
65+ years (20.6 teeth)	96.4	0.7	81.5	1.8	62.3	1.7	40.7	1.8	24.7	1.5	2.14	0.06
Sex
Male	92.0	0.9	68.4	1.6	49.2	1.5	30.6	1.2	19.4	0.9	1.95	0.04
Female	84.4	1.1	53.6	1.9	33.0	1.7	18.0	1.1	10.1	0.7	1.50	0.03
Race/Ethnic Group
Hispanics	95.0	0.9	71.6	1.6	52.1	2.5	33.9	2.0	21.8	1.7	2.01	0.06
Non-Hispanic Asian American*	92.9	0.8	65.0	3.3	41.2	3.2	27.4	3.1	15.4	2.0	1.95	0.11
Non-Hispanic White	86.6	1.2	57.2	2.0	37.0	1.8	20.5	1.3	11.8	0.8	1.62	0.04
Non-Hispanic Black	90.0	1.3	69.7	2.1	51.1	2.0	35.7	2.0	23.7	1.5	2.09	0.08
Education
< High school	93.7	0.9	77.0	1.7	59.8	1.8	42.0	2.3	27.9	1.6	2.35	0.07
High school	90.2	1.1	68.2	2.0	48.9	1.7	30.8	1.8	20.4	1.0	1.95	0.05
>High school	86.0	1.0	54.1	1.7	33.2	1.5	17.4	1.0	9.3	0.6	1.48	0.03
Poverty Level
< 100% FPL	92.4	1.4	71.8	1.6	52.4	1.4	35.2	1.6	23.2	1.4	2.25	0.06
100–199% FPL	92.9	0.9	68.4	1.5	48.3	1.7	32.2	1.6	21.4	1.2	2.04	0.05
200–499% FPL	87.4	1.2	63.0	2.7	43.2	2.7	24.9	2.1	14.5	1.2	1.69	0.05
≥400% FPL	84.8	1.4	51.3	2.0	31.0	1.7	15.6	0.9	8.4	0.7	1.43	0.03
Marital status
Married	86.8	0.9	56.7	1.7	37.6	1.4	21.6	1.0	12.8	0.6	1.62	0.03
Widowed	95.6	1.2	79.7	2.3	59.1	3.1	38.8	2.3	24.0	2.0	2.15	0.08
Divorced	92.2	1.1	69.2	3.2	47.2	2.9	29.2	2.1	19.2	2.1	1.93	0.07
Separated	92.0	2.2	73.6	2.9	57.0	4.3	35.0	4.4	23.7	3.3	2.12	0.13
Never married	86.7	1.6	60.0	2.8	36.1	3.0	20.8	2.4	11.4	1.4	1.68	0.06
Living with partner	88.2	2.3	65.2	3.7	47.0	3.6	28.4	2.5	18.0	2.1	1.92	0.09
Smoking status
Current smoker	93.6	1.0	75.2	1.4	58.3	1.8	41.6	1.9	27.0	1.6	2.40	0.08
Former smoker	89.6	1.1	65.8	2.3	43.9	2.5	27.8	2.0	16.4	1.3	1.78	0.06
Non smoker	85.8	0.9	54.1	1.8	34.1	1.4	17.2	1.0	10.0	0.6	1.49	0.03

^*Oversampling of Non-Hispanic Asian Americans only in NHANES 2011–2012.

age standardized, standardized to age distribution of the 2000 US population; CAL, clinical attachment loss; FPL, federal poverty level; mean CAL is average attachment loss in millimeters of all assessed sites; NHANES, National Health and Nutrition Examination Survey; NHANES III protocol, NHANES III protocol applied to NHANES 2009–2012 data: prevalence estimates based on the PMPE protocols used in NHANES III and 1999–2000 of using PPD and CAL measurements only from two sites per tooth (mid-buccal and mesio-buccal sites) from all teeth other than third molars in two randomly selected quadrants; NHANES 2001–2004 protocol, NHANES 2001–2004 protocol applied to NHANES 2009–2012 data: prevalence estimates based on the PMPE protocol used in NHANES 2001–2004 using measurements of PPD and CAL only from three sites per tooth (mid-buccal, mesio-buccal, and disto-buccal sites) from all teeth other than third molars in two randomly selected quadrants; PPD, periodontal probing depth; SE, standard error; total periodontitis, sum of prevalence of mild, moderate, and severe periodontitis according to the CDC/AAP case definitions.¹⁵