TABLE 8.

Beta Coefficients and 95% CI of Association Between Number of Prostate Cancer–Specific Social Support Types and Health-Related Quality-of-Life Outcomes Using SF-12® Subscales

	Physical Components Score		Mental Components Score
Characteristic	Coeff	95% CI	Coeff	95% CI
Number of social support types	0.68	[−0.19, 1.54]	0.98	[−0.14, 2.11]
Age (centered at mean)	−0.28**	[−0.45, −0.11]	0.49***	[0.27, 0.72]
Some college or less (ref: graduate degree)	−1.9	[−5.05, 1.25]	0.04	[−4.05, 4.13]
Bachelor’s degree (ref: graduate degree)	0.2	[−2.59, 2.99]	1.96	[−1.66, 5.57]
Non-Hispanic White (ref: Hispanic or non-White)	1.21	[−2.58, 4.99]	−2.63	[−7.54, 2.28]
In a relationship (ref: single)	−1.47	[−4.04, 1.1]	1.83	[−1.5, 5.15]
Gay (ref: bisexual)	0.27	[−4.18, 4.71]	−1.16	[−6.93, 4.6]
Systemic treatment (ref: surgery)	−2.84	[−5.93, 0.25]	−3.5	[−7.5, 0.51]
Radiation or brachytherapy (ref: surgery)	−0.08	[−3.6, 3.43]	−3.97	[−8.53, 0.59]
Years since diagnosis (centered at mean)	−0.12	[−0.42, 0.18]	−0.08	[−0.46, 0.31]
PSA level at diagnosis	0.08	[−0.14, 0.3]	−0.11	[−0.39, 0.17]
Intercept	51.57***	[45.08, 58.06]	47.12***	[38.7, 55.54]

^*p < 0.05;

^**p < 0.01;

^***p < 0.001

CI—confidence interval; coeff—beta coefficient; 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.