Table 4A.

Differences in Missing/Non-Missing Patient Characteristics for BCI

	Missing (N = 114)	Non-Missing (N = 858)	p-value
Age (years), mean (SD) [median]	62.0 (15.8)	67.7 (8.7)	0.20
Gender, N (%)
Female	2 (50%)	329 (41%)	0.71
Male	2 (50%)	477 (59%)
Missing	110	52
Race, N (%)			1.00
White/Caucasian	4 (100%)	768 (97%)
Black or African American	0	12 (1.5%)
American Indian or Alaska Native	0	3 (0.4%)
Asian	0	9 (1%)
Native Hawaiian or Pacific Islander	0	1 (0.1%)
Other	0	0
Missing	65	110
Ethnicity, N (%)			0.77
Hispanic	0	16 (2%)
Non-Hispanic	4 (100%)	764 (98%)
Missing	110	78
Region of current residence, N (%)
Northeast	0	166 (19%)	< 0.0001
Midwest	0	163 (19%)
South	3 (3%)	237 (28%)
West	1 (1%)	177 (21%)
Missing	110 (96%)	115 (13%)
Highest level of formal education, N (%)			0.60
8th grade or less	0	1 (0.1%)
Some high school	0	2 (0.2%)
High school graduate	1 (25%)	56 (7%)
Some college (did not complete college)	1 (25%	202 (25%)
College graduate	2 (50%)	259 (32%)
Post-college degree	0	285 (35%)
Missing	110	53
Annual household income, N (%)			0.27
Less than $20,000	1 (25%	30 (4%)
Between $20,001 and $40,000	1 (25%)	82 (11%)
Between $40,001 and $60,000	0	107 (14%)
Between $60,001 and $80,000	1 (25%)	122 (16%)
Between $80,001 and $100,000	0	110 (15%)
More than $100,001	1 (25%)	288 (39%)
Missing	110	119
Marital status, N (%)			0.90
Married	3 (75%)	609 (76%)
Unmarried, living with partner	0	18 (2%)
Divorced	1 (25%)	75 (9%)
Widowed	0	54 (7%)
Separated	0	7 (0.9%)
Single, never married	0	38 (5%)
Missing	110	57
Insurance coverage, N (%)			0.64
Commercial insurance	3 (100%)	429 (64%)
Medicare	0	178 (26%)
Government (Tricare)	0	49 (7%)
No insurance	0	15 (2%)
I don’t know/missing	111	187