Table 4.2. Distribution of Study Participant Population by Patient and Practice Characteristics

Characteristics	Card Intervention			Kit Intervention			Control
Characteristics	N	%^a	Adj % ^b	N	%	Adj %	N	%	Adj %
Total population	7,495	100.0	—	470	100.0	—	2,662	100.0	—
Patient Characteristics
*Gender*
Male	3,194	42.6	44.3	201	42.8	49.4	1,191	44.7	44.7
Female	4,021	53.7	55.7	206	43.8	50.6	1,471	55.3	55.3
Unknown	280	3.7	—	63	13.4	—	0	0.0	—
*Age*
50-54	1,945	26.0	26.0	154	32.8	32.8	927	34.8	35.1
55-64	3,190	42.6	42.6	179	38.1	38.1	1,067	40.1	40.4
65-69	947	12.6	12.6	52	11.1	11.1	286	10.7	10.8
70-79	1,411	18.8	18.8	85	18.1	18.1	363	13.6	13.7
Unknown	2	0.0	—	0	0.0	—	19	0.7	—
Insurance
*Commercial and other*	4,346	58.0	62.8	266	56.6	74.3	—	—	—
Medicare	2,003	26.7	28.9	80	17.0	22.3	—	—	—
Self/Medicaid	575	7.7	8.3	12	2.6	3.4	—	—	—
Unknown	571	7.6	—	112	23.8	—	2,662	100.0	—
Practice Characteristics
*Practice affiliation*
Clinic	1,416	18.9	—	0	0.0	—	930	34.9	—
Independent	367	4.9	—	62	13.2	—	35	1.3	—
LVPG	5,645	75.3	—	408	86.8	—	1,646	61.8	—
MATLV	67	0.9	—	0	0.0	—	51	1.9	—
*Specialty*
Family medicine	6,701	89.4	—	470	100.0	—	1,697	63.7	—
*General internal medicine*	794	10.6	—	0	0.0	—	965	36.3	—
*Size*
Large	4,624	61.7	—	62	13.2	—	1,016	38.2	—
Small	2,871	38.3	—	408	86.8	—	1,646	61.8	—
*Location*
Rural	3,057	40.8	—	408	86.8	—	898	33.7	—
Suburban	2,659	35.5	—	62	13.2	—	834	31.3	—
Urban	1,779	23.7	—	0	0.0	—	930	34.9	—

^a. Some percentages do not add to 100 due to rounding.
^b. Percentages adjusted for missing data.

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