Table 2.

Association between CAHPS domains and QIP (N=3176)

CAHPS Domains	β (95% CI)	Adjusted β* (95% CI)
Nephrologist-Related Domains
Patients-nephrologists’ communication and caring	1.04 (0.63–1.46)	0.90 (0.49–1.30)
Patients-rating of the nephrologist	0.80 (0.44–1.16)	0.70 (0.35–1.05)
Facility-Related Domains
Patients-quality of dialysis center care and operations	2.12 (1.64–2.59)	1.90 (1.41–2.38)
Patients-rating of the dialysis facility	1.90 (1.56–2.34)	1.69 (1.35–2.04)
Patients-rating of the dialysis center staff	1.83 (1.48–2.17)	1.62 (1.26–1.97)
Information Domain
Providing information to patients	2.48 (1.92, 3.05)	2.24 (1.67–2.81)

CI: confidence interval.

Beta (β) is the increase in QIP when 10% point increases in each domain. Of note, the first 5 domains were based on 3 categories so we used weighted score (0–0.5–1), while the last domain was based on 2 categories (0–1); thus comparisons among 5 domains would be more valid.

All betas are different from 0 with p<0.0001.

^*In the adjusted model, we adjusted peritoneal dialysis, home dialysis, profit status, chain status, number of stations, and region.