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. Author manuscript; available in PMC: 2015 Jan 22.
Published in final edited form as: Contemp Clin Trials. 2011 Nov 12;33(2):426–435. doi: 10.1016/j.cct.2011.11.005

Table 1.

Characteristics of study participants overall and according to risk level

Characteristic Overall

(N=632) N (%)
Risk Level
HNPCC (N=165)
N (%)
High Risk (N=467)
N (%)

Gender
 Male 261 (41) 81 (49) 180 (39)
 Female 371 (59) 84 (51) 287 (61)

Age
 < 40 36 (1) 12 (7) 24 (5)
 40 – 49 152 (24) 33 (20) 119 (25)
 50 – 64 272 (43) 83 (50) 189 (40)
 65+ 172 (27) 37 (22) 135 (29)

Race
 African American 11 (2) 2 (1) 9 (2)
 Caucasian 589 (93) 155 (94) 434 (93)
 Other 23 (4) 5 (3) 18 (4)
 Missing 9 (1) 3 (2) 6 (1)

Ethnicity
 Hispanic 15 (2) 3 (2) 12 (3)
 Non-Hispanic 605 (96) 161 (98) 444 (95)
 Missing 12 (2) 1 (1) 11 (2)

Education
 Post college 117 (19) 29 (18) 88 (19)
 College graduate 175 (28) 49 (30) 126 (27)
 Some college/tech school 195 (31) 50 (30) 145 (31)
 High school/GED 121 (19) 30 (18) 91 (19)
 Less than high school 20 (3) 6 (4) 14 (3)
 Missing 4 (<1) 1 (1) 3 (1)

Household Income
 $70,000 or more 235 (37) 65 (39) 170 (36)
 $45,000 – $69,999 149 (24) 45 (27) 114 (24)
 $30,000 – $44,999 106 (17) 23 (14) 83 (18)
 $15,000 – $29,999 68 (11) 12 (7) 56 (12)
 < $15,000 28 (4) 7 (4) 21 (4)
Missing/Don’t know 36 (6) 13 (8) 23 (5)

Health Insurance Status
 Insured 603 (95) 158 (96) 445 (95)
 Not insured 25 (4) 6 (4) 19 (4)
 Missing 4 (<1) 1 (1) 3 (1)

Have regular doctor or clinic
 Yes 582 (92) 152 (92) 430 (92)
 No 48 (8) 13 (8) 35 (7)
 Missing 2 (<1) 0 2 (<1)

HNPCC = hereditary non-polyposis colon cancer