Differences in key study variables by CT-stage decision
| Study variable . | CT-stage decision . | Test statistic, χ2 or t . | P . | |
|---|---|---|---|---|
| Continue (n = 843) . | Opt out (n = 224) . | |||
| Demographic characteristics | ||||
| Female sex, % | 59 | 59 | 0.05 | .822 |
| Mean age, y (SD) | 38.27 (10.69) | 35.39 (11.96) | 3.49 | .001*** |
| Marital status, % married | 63 | 53 | 7.38 | .007** |
| Education, % ≥ bachelor's degree | 59 | 50 | 5.74 | .017* |
| Employment, % employed | 84 | 78 | 5.12 | .024* |
| Income | ||||
| % < 35K | 17 | 27 | 11.67 | .003** |
| % 35K-75K | 34 | 33 | ||
| % > 75K | 50 | 40 | ||
| Culturally related characteristics, mean (SD) | ||||
| Religion importance/influence | 6.67 (2.36) | 6.83 (2.42) | 0.92 | .357 |
| Religious objections | 1.77 (0.50) | 2.01 (0.52) | 6.35 | .000*** |
| Family cohesion | 3.09 (0.45) | 3.13 (0.48) | 1.05 | .294 |
| Medical system mistrust, mean (SD) | 2.73 (0.53) | 2.80 (0.60) | 1.84 | .066 |
| HSC allocation mistrust, mean (SD) | 2.26 (0.54) | 2.50 (0.67) | 5.60 | .000*** |
| Psychosocial characteristics, mean (SD) | ||||
| Anxiety | 0.15 (0.26) | 0.24 (0.29) | 4.39 | .000*** |
| Depression | 0.12 (0.24) | 0.23 (0.34) | 5.53 | .000*** |
| Self-esteem | 3.60 (0.40) | 3.44 (0.44) | 4.94 | .000*** |
| Mastery | 3.38 (0.46) | 3.24 (0.48) | 4.04 | .000*** |
| SF-8 physical summary | 64.62 (5.12) | 63.00 (7.26) | 3.81 | .000*** |
| SF-8 mental summary | 64.43 (5.78) | 61.40 (8.23) | 6.30 | .000*** |
| Donation-related characteristics | ||||
| Encouraged to donate, % yes | 24 | 27 | 1.00 | .317 |
| Discouraged from donating, % yes | 28 | 31 | 1.19 | .275 |
| Ambivalence, mean (SD) | 1.63 (0.49) | 2.51 (0.55) | 20.97 | .000*** |
| Donor self-definition, mean (SD) | 6.43 (2.06) | 5.26 (2.39) | 7.31 | .000*** |
| Donor social role, mean (SD) | 3.65 (1.63) | 3.21 (1.62) | 3.55 | .000*** |
| Medical concerns, mean (SD) | 1.83 (1.37) | 2.65 (1.40) | 7.91 | .000*** |
| Work and family concerns, mean (SD) | 1.85 (1.56) | 2.80 (1.85) | 7.72 | .000*** |
| Other concerns, mean (SD) | 0.28 (0.48) | 0.22 (0.51) | 1.69 | .092 |
| Chance of serious complication, mean (SD) | 1.85 (0.72) | 2.14 (0.75) | 5.24 | .000*** |
| Satisfaction with decision, mean (SD) | 3.65 (0.51) | 2.09 (0.83) | 34.85 | .000*** |
| Study variable . | CT-stage decision . | Test statistic, χ2 or t . | P . | |
|---|---|---|---|---|
| Continue (n = 843) . | Opt out (n = 224) . | |||
| Demographic characteristics | ||||
| Female sex, % | 59 | 59 | 0.05 | .822 |
| Mean age, y (SD) | 38.27 (10.69) | 35.39 (11.96) | 3.49 | .001*** |
| Marital status, % married | 63 | 53 | 7.38 | .007** |
| Education, % ≥ bachelor's degree | 59 | 50 | 5.74 | .017* |
| Employment, % employed | 84 | 78 | 5.12 | .024* |
| Income | ||||
| % < 35K | 17 | 27 | 11.67 | .003** |
| % 35K-75K | 34 | 33 | ||
| % > 75K | 50 | 40 | ||
| Culturally related characteristics, mean (SD) | ||||
| Religion importance/influence | 6.67 (2.36) | 6.83 (2.42) | 0.92 | .357 |
| Religious objections | 1.77 (0.50) | 2.01 (0.52) | 6.35 | .000*** |
| Family cohesion | 3.09 (0.45) | 3.13 (0.48) | 1.05 | .294 |
| Medical system mistrust, mean (SD) | 2.73 (0.53) | 2.80 (0.60) | 1.84 | .066 |
| HSC allocation mistrust, mean (SD) | 2.26 (0.54) | 2.50 (0.67) | 5.60 | .000*** |
| Psychosocial characteristics, mean (SD) | ||||
| Anxiety | 0.15 (0.26) | 0.24 (0.29) | 4.39 | .000*** |
| Depression | 0.12 (0.24) | 0.23 (0.34) | 5.53 | .000*** |
| Self-esteem | 3.60 (0.40) | 3.44 (0.44) | 4.94 | .000*** |
| Mastery | 3.38 (0.46) | 3.24 (0.48) | 4.04 | .000*** |
| SF-8 physical summary | 64.62 (5.12) | 63.00 (7.26) | 3.81 | .000*** |
| SF-8 mental summary | 64.43 (5.78) | 61.40 (8.23) | 6.30 | .000*** |
| Donation-related characteristics | ||||
| Encouraged to donate, % yes | 24 | 27 | 1.00 | .317 |
| Discouraged from donating, % yes | 28 | 31 | 1.19 | .275 |
| Ambivalence, mean (SD) | 1.63 (0.49) | 2.51 (0.55) | 20.97 | .000*** |
| Donor self-definition, mean (SD) | 6.43 (2.06) | 5.26 (2.39) | 7.31 | .000*** |
| Donor social role, mean (SD) | 3.65 (1.63) | 3.21 (1.62) | 3.55 | .000*** |
| Medical concerns, mean (SD) | 1.83 (1.37) | 2.65 (1.40) | 7.91 | .000*** |
| Work and family concerns, mean (SD) | 1.85 (1.56) | 2.80 (1.85) | 7.72 | .000*** |
| Other concerns, mean (SD) | 0.28 (0.48) | 0.22 (0.51) | 1.69 | .092 |
| Chance of serious complication, mean (SD) | 1.85 (0.72) | 2.14 (0.75) | 5.24 | .000*** |
| Satisfaction with decision, mean (SD) | 3.65 (0.51) | 2.09 (0.83) | 34.85 | .000*** |
All continuous variables are coded so that a higher score indicates more of the variable. The variables “anxiety,” “depression,” “ambivalence,” “other concerns,” and “chance of a serious complication” were skewed and were transformed (anxiety, depression, and other concerns were dichotomized and ambivalence and chance of a serious complication were trichotomized) before analysis. Raw means are presented in the tables for ease of interpretation.
P < .05;
P < .01;
P < .001.