TABLE 1.

Characteristics and Percent Known of Cancer Cases in 10 Central Cancer Registries, 2011-2013

	Percent Known of Tobacco Use Variablesa
Characteristic	Count, No.b	Cigarettes	Other Smokedc	Smokeless	NOS
Total	1,646,505	51.4	42.9	43.1	43.4
Sex
Male	812,096	49.6	40.5	40.7	41.3
Female	834,409	53.1	45.1	45.4	45.5
Diagnosis age (median, 66 y)
0-29 y	41,856	50.3	45.2	45.4	45.1
30-39 y	54,164	50.7	43.4	43.6	43.6
40-49 y	140,928	52.2	44.4	44.7	44.7
50-59 y	316,138	52.3	43.5	43.8	44.1
60-69 y	453,141	51.8	42.8	43.0	43.4
70-79 y	377,652	52.2	43.1	43.4	43.8
≥80 y	262,626	48.4	40.5	40.7	41.0
Race
White	1,365,514	52.2	43.4	43.7	44.0
Black	166,620	55.2	47.0	47.1	47.9
Asian/Pacific Islander	73,157	38.9	32.8	32.9	32.9
Other	41,214	30.9	25.5	25.7	25.9
Ethnicityd
Non-Hispanic	1,410,097	51.7	42.9	43.2	43.5
Hispanic	235,773	49.5	42.5	42.4	42.7
Diagnosis type
Oral cavity and pharynx	40,994	55.8	46.0	46.4	46.9
Digestive system	277,305	54.6	45.4	45.6	45.9
Respiratory system	205,806	58.1	45.2	45.4	46.4
Skin, excluding basal and squamous	128,608	26.9	22.6	23.1	22.9
Breast	268,728	56.0	48.4	48.5	48.6
Female genital system	87,334	54.0	46.7	47.0	47.2
Male genital system	191,235	47.0	39.0	39.1	39.9
Urinary system	120,881	51.8	42.3	42.8	43.0
Brain and other nervous system	60,179	52.8	45.1	45.4	45.1
Endocrine system	58,090	49.8	42.3	42.8	42.3
Blood cancer	127,991	52.4	44.4	44.5	44.7
Other	79,354	50.4	42.8	42.9	43.2
Behavior
Malignant	1,475,270	52.6	43.8	44.0	44.4
In situ	118,758	36.4	31.1	31.5	31.3
Borderline malignancy	4616	49.7	43.1	43.4	43.0
Benign	47,861	51.4	43.9	44.4	43.9
Reporting source
Hospital	1,462,351	54.6	45.6	45.9	46.1
Radiation or oncology center	30,959	72.8	61.1	59.8	64.8
Laboratory only	27,136	9.4	7.7	7.7	7.7
Physician office/private practitioner	69,734	9.0	7.4	7.5	7.6
Nursing/convalescent home/hospice	1020	2.6	1.6	1.6	1.9
Autopsy only	984	16.2	11.9	11.7	12.4
Death certificate only	23,851	0.2	0.2	0.2	0.4
Other hospital center	30,470	51.1	41.2	41.2	41.1

Abbreviation: NOS, not otherwise specified.

^aThe percent known was calculated by the division of the total known values of each tobacco use variable by the number of cases as represented in the count column. The chi-squared P value within each characteristic and for each tobacco use variable was <.0001. The counts for the tobacco use cigarette variable excluded 3 cases with blank values. The tobacco use other smoked variable excluded 3 blank values, the tobacco use smokeless variable excluded 3 blank values, and the tobacco use NOS variable excluded 4 blank values.

^bCases in this column served as the denominator for calculating the row percentages for the percent known.

^cSmoked tobacco products other than cigarettes (eg, pipes, cigars, and kreteks).

^dExcluded 635 cases of unspecified ethnicity.