Table 5.

Contributions of study variables to specific domains of the SF-36 HRQoL instrument, based on multiple regression

Domain	% of variance predicted by variables	More stones in last year	Shorter time since last stone event	Female gender	Required urologic intervention for stone event	Mental comorbidities	Musculoskeletal comorbidities	Respiratory comorbidities	Metabolic comorbidities	CYSF
Physical functioning	34.8 p < 0.001	−0.42 p < 0.015				−4.14 p < 0.001	−4.12 p < 0.001	−5.374 p < 0.002	−1.56 p < 0.01
Role-physical	37.7 p < 0.001	−0.78 p < 0.001	0.74 p < 0.001			−3.12 p = 0.003	−3.67 p < 0.001
Bodily pain	44.4 p < 0.001	−0.64 p < 0.001	1.18 p < 0.001	−2.4 p = 0.04			−3.90 p < 0.001
General health	32.4 p < 0.001	−0.77 p < 0.001		−2.834 p = 0.04		−2.62 p = 0.023	−3.24 p = 0.009	−8.80 p < 0.001	−1.94 p = 0.013
Vitality	34.3 p < 0.001	0.81 p < 0.001			3.68 p = 0.016	−6.07 p < 0.001	−3.35 p = 0.007
Social functioning	39.6 p < 0.001		0.81 p < 0.001	−3.63 p = 0.008	3.40 p = 0.21	−6.32 p < 0.001	−3.16 p = 0.008
Role emotional	34.2 p < 0.001	−0.581 p = 0.015				−8.85 p < 0.001				−3.98 p < 0.032
Mental health	33.7 p < 0.001				1.74 p = 0.032	−8.02 p < 0.001

The first column indicates the proportion of variance with associated p value in the eight HRQoL domains explained by the individual variables including 4 grouped comorbidities. Each cell contains B, the unstandardized beta, indicating the extent to which each study variable contributed to the HRQoL score