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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Prev Med. 2014 Jun 15;66:123–130. doi: 10.1016/j.ypmed.2014.06.013

Table 1.

Baseline characteristics by CRCS completion at Year 1 (n = 1247) and repeat screening at Year 2 among participants in the SOS Trial, August 2008 to November 2011 (n = 511).

Variable CRCS completion at Year 1
Repeat screening at Year 2
Screened
Not screened
p-value Screened
Not screened
p-value
(n = 765)
(n = 482)
(n = 365)
(n = 146)
n (%) n (%) n (%) n (%)
Sociodemographic
Age 0.005 0.041
    50-64 641 59.8 431 40.2 298 69.6 130 30.4
    65-73 124 70.9 51 29.1 67 80.7 16 19.3
Sex 0.670 0.537
    Male 335 60.7 217 39.3 171 72.2 64 27.2
    Female 430 61.9 265 38.1 194 70.3 82 29.7
Race/ethnicity 0.028 0.142
    Hispanic 18 41.9 25 58.1 9 69.2 4 30.8
    Black 27 50.0 27 50.0 20 90.9 2 9.1
    Asian 32 60.4 21 39.6 13 61.9 8 38.1
    White 639 62.9 377 37.1 304 71.7 120 28.3
    Other 47 61.0 30 39.0 18 62.1 11 37.9
Education <0.001 0.499
    High school grad/GED or less 86 52.8 77 47.2 41 70.7 17 29.3
    Some college 219 56.3 170 43.7 104 75.4 34 24.6
    Bachelor's degree or more 458 66.1 235 33.9 219 70.0 94 30.0
Marital status 0.154 0.227
    Not married 191 58.1 138 42.0 89 67.4 43 32.6
    Married 572 62.5 343 37.5 275 72.9 102 27.0
Employment 0.287 0.827
    At least part time 544 60.4 357 39.6 255 71.2 103 28.8
    Retired/other 219 63.7 125 36.3 109 72.2 42 27.8
Insurance 0.006 0.202
    Commercial/private pay 661 60.0 441 40.0 312 70.4 131 29.6
    Medicare/basic health 104 71.7 41 28.3 53 77.9 15 22.1
Medical/health history
Family history of CRC (1st degree relative) 0.032 0.491
    No 710 60.7 459 39.3 339 71.1 138 28.9
    Yes 42 75.0 14 25.0 19 79.2 5 20.8
Smoker 0.008 0.171
    Never 430 64.4 238 35.6 216 71.8 85 28.2
    Former 261 60.0 174 40.0 121 74.2 42 25.8
    Current 71 50.7 69 49.3 27 60.0 18 40.0
Health rating, mean (SD) 7.6 (1.3) 7.3 (1.4) 0.002 7.7 (1.2) 7.6 (1.3) 0.336
Prior CRCS (at baseline) <0.001 0.003
    No 282 49.4 289 50.6 126 64.0 71 36.0
    Yes 483 71.5 193 28.6 239 76.1 75 23.9
Physician recommendation 0.007 0.680
    No/don't know 183 55.5 147 44.6 96 70.6 40 29.4
    Yes 538 64.0 303 36.0 250 72.5 95 27.5
Test preference 0.003 0.409
    Colonoscopy/sigmoidoscopy/FOBT 738 61.8 456 38.2 354 72.0 138 28.1
    No preference 11 35.5 20 64.5 4 57.1 3 42.9
Comorbidity score 0.117 0.540
    1 244 58.5 173 41.5 122 69.7 53 30.3
    2 376 64.4 208 35.6 182 73.7 65 26.3
    3 145 58.6 101 41.1 61 68.5 28 31.5
Continuity of care index 0.845 0.220
    <0.67 646 61.2 409 38.8 307 70.4 129 29.6
    ≥0.67 119 62.0 73 38.0 58 77.3 17 22.7
Psychosocial
Self-efficacy, mean (SD) 4.37 (0.74) 4.17 (0.89) <0.001 4.34 (0.74) 4.20 (0.83) 0.051
CRCS pros, mean (SD) 4.54(0.51) 4.44 (0.65) 0.002 4.49 (0.56) 4.46 (0.51) 0.513
CRCS cons, mean (SD) 1.70 (0.76) 1.84 (0.76) 0.002 1.76 (0.79) 1.81 (0.79) 0.459
Social influence, mean (SD) 3.67 (0.96) 3.53 (1.07) 0.019 3.56 (0.98) 3.64 (0.99) 0.416
Cancer worry, mean (SD) 2.25 ( 0.74) 2.28 (0.77) 0.521 2.21 (0.68) 2.23 (0.77) 0.732
Current plans to be screened 0.006 0.967
    Not thinking about it 54 47.4 60 52.6 31 73.8 11 26.2
    Thinking...not in the next year 78 57.8 57 42.2 44 69.8 19 30.2
    Thinking...within the next year 256 61.2 162 38.8 125 71.0 51 29.0
    Want to get screened in the next year 345 64.7 188 35.3 148 72.2 57 27.8
Importance 0.001 0.639
    Very important/important 639 63.5 367 36.5 295 71.8 116 28.2
    Not as important/not at all important 124 52.1 114 47.9 68 69.4 30 30.6
Intervention
Intervention group <0.001 <0.001
    Usual care 131 40.9 189 59.1 16 24.6 49 75.4
    Automated 216 62.1 132 37.9 109 75.2 36 24.8
    Assisted 198 69.7 86 30.3 117 78.5 32 21.5
    Navigated 220 74.6 75 25.4 123 80.9 29 19.1

Participants with missing data were excluded from the analysis. Missing values ranged from 0 (age, sex, insurance, prior CRCS, comorbidity, continuity of care, intervention) to 76 (physician recommendation).