TABLE 1.
Baseline Characteristics of Participants by Treatment Group and Completion Status: Project SCAPE; Honolulu, HI, and Long Island, NY; 2000 and 2001
| Characteristic | Total (n = 724), % or Mean (SD) | Intervention Enrolled (n = 362), % or Mean (SD) | Control Enrolled (n = 362), % or Mean (SD) | Intervention Completers (n = 307), % or Mean (SD) | Control Completers (n = 289), % or Mean (SD) | Pa |
| Women | 77.5 | 78.7 | 76.2 | 79.8 | 79.9 | .97 |
| Age, y (range = 20–65) | 41.7 (11.0) | 42.1 (10.8) | 41.2 (11.2) | 42.4 (10.6) | 41.3 (11.0) | .22 |
| White | 80.2 | 81.8 | 78.7 | 84.0 | 80.3 | .23 |
| Graduated college | 47.5 | 50.0 | 45.0 | 50.8 | 46.0 | .24 |
| Household income ≥ $40,000 | 63.5 | 64.8 | 62.0 | 66.1 | 62.3 | .35 |
| High risk for skin cancer | 36.6 | 37.0 | 36.2 | 37.5 | 35.0 | .52 |
| Had ≥ 1 sunburns last summer | 69.0 | 69.1 | 69.0 | 67.1 | 69.8 | .48 |
| Skin self-examination in last 3 mo | 46.9 | 46.2 | 47.5 | 43.9 | 47.4 | .40 |
| Sun protection habits indexb | 2.37 (0.54) | 2.39 (0.53) | 2.34 (0.55) | 2.37 (0.52) | 2.37 (0.55) | .87 |
| Sunscreen application indexc | 5.17 (2.73) | 5.26 (2.74) | 5.09 (2.72) | 5.21 (2.76) | 5.12 (2.73) | .70 |
| Risk perceptiond (range = 1–5) | 3.40 (0.95) | 3.38 (0.94) | 3.42 (0.97) | 3.38 (0.95) | 3.43 (0.98) | .54 |
| Perceived benefitse (range = 1–4) | 3.57 (0.46) | 3.59 (0.46) | 3.55 (0.46) | 3.61 (0.44) | 3.55 (0.47) | .13 |
| Perceived barriersf (range = 1–5) | 2.76 (0.73) | 2.75 (0.71) | 2.77 (0.75) | 2.74 (0.71) | 2.75 (0.71) | .80 |
| Social normsg (range = 1–4) | 2.57 (0.66) | 2.56 (0.64) | 2.57 (0.68) | 2.56 (0.64) | 2.57 (0.70) | .79 |
| Knowledgeh (range = 0–7) | 5.19 (1.28) | 5.27 (1.25) | 5.11 (1.31) | 5.27 (1.24) | 5.17 (1.31) | .30 |
Note. Sample sizes were smaller for some items because of some missing data (up to 2%). The χ2 test was used to assess relationships for categorical variables, and the t test was used to assess relationships for continous variables; no significant differences were found.
P value for completers.
Range of values was 1 = rarely or never to 4 = always.
Range of values was 0 = none to 9 = all exposed body parts.
Range of values was 1 = very unlikely to 5 = very likely.
Range of values was 1 = not at all to 4 = a great deal.
Range of values was 1 = strongly agree to 5 = strongly disagree.
Range of values was 1 = none to 4 = most or all.
Range of values was 0–7 (actual number answered correctly).