TABLE 7.
Beta Coefficients and 95% CI of Association Between Number of Prostate Cancer–Specific Social Support Types and Health-Related Quality-of-Life Outcomes Using EPIC Subscales
| Hormonal | Sexual | Bowel | Urinary | |||||
|---|---|---|---|---|---|---|---|---|
| Characteristic | Coeff | 95% CI | Coeff | 95% CI | Coeff | 95% CI | Coeff | 95% CI |
| Number of social support types | 2.02* | [0.31, 3.72] | 0.56 | [−1.63, 2.75] | −0.13 | [−1.42, 1.17] | 1.23 | [−0.69, 3.16] |
| Age (centered at mean) | 0.1 | [−0.24, 0.44] | −0.49* | [−0.93, −0.06] | 0.17 | [−0.08, 0.43] | −0.14 | [−0.52, 0.24] |
| Some college or less (ref: graduate degree) | −1.33 | [−7.53, 4.88] | −2.94 | [−10.93, 5.04] | 0.52 | [−4.18, 5.23] | −0.02 | [−7.04, 6.99] |
| Bachelor’s degree (ref: graduate degree) | 1.3 | [−4.19, 6.78] | 1.84 | [−5.22, 8.9] | 2.66 | [−1.5, 6.83] | 3.3 | [−2.91, 9.51] |
| Non-Hispanic White (ref: Hispanic or non-White) | 5.54 | [−1.91, 12.99] | 5.07 | [−4.51, 14.66] | 0.95 | [−4.7, 6.6] | 3.63 | [−4.79, 12.06] |
| In a relationship (ref: single) | −1.68 | [−6.73, 3.37] | 1.64 | [−4.86, 8.14] | −2 | [−5.83, 1.83] | −1.26 | [−6.97, 4.46] |
| Gay (ref: bisexual) | −4.05 | [−12.79, 4.69] | −0.83 | [−12.08, 10.42] | 6.79* | [0.16, 13.42] | 1.57 | [−8.32, 11.46] |
| Systemic treatment (ref: surgery) | −9.13** | [−15.21, −3.06] | −14.21*** | [−22.04, −6.39] | −8.94*** | [−13.55, −4.33] | −1.58 | [−8.46, 5.29] |
| Radiation or brachytherapy (ref: surgery) | −2.63 | [−9.54, 4.28] | 1.21 | [−7.68, 10.1] | −7.5** | [−12.74, −2.25] | 5.36 | [−2.46, 13.18] |
| Years since diagnosis (centered at mean) | −0.22 | [−0.8, 0.37] | 0.22 | [−0.53, 0.98] | −0.19 | [−0.64, 0.26] | −0.02 | [−0.69, 0.64] |
| PSA level at diagnosis | 0.04 | [−0.39, 0.47] | 0.25 | [−0.3, 0.79] | 0.03 | [−0.3, 0.35] | −0.09 | [−0.57, 0.4] |
| Intercept | 78.95*** | [66.18, 91.72] | 42.54*** | [26.11, 58.97] | 84.49*** | [74.81, 94.18] | 68.68*** | [54.23, 83.12] |
*
p < 0.05;
**
p < 0.01;
***
p < 0.001
CI—confidence interval; coeff—beta coefficient; EPIC—Expanded Prostate Cancer Index Composite; PSA—prostate-specific antigen; ref—reference group for categorical/binary variables
Note. Intercept represents referent participant, a 63.5-year-old, non-Hispanic White, married, gay man who had surgery and is 5.8 years since diagnosis, with a PSA level at diagnosis of 7.6 ng/ml and high social support.