Table 3.

Full Models to Test the Effects of the NP Practice Environment on Quality of Care from the Fractional Logistic Regression Models^a

Effect	Odds Ratio	95% Confidence Interval		p-value
		Lower	Upper
Medication Management for Patients with Asthma (n=109)
Main Predictors
Professional Visibility	1.09	0.70	1.70	0.74
NP-Administration Relations	1.96	1.23	3.12	0.006b
NP-Physician Relations	0.69	0.44	1.08	0.09
Independent Practice and Support	1.13	0.76	1.67	0.55
Covariates
White ratio	0.67	0.43	1.02	0.07
Female ratio	1.21	1.02	1.43	0.03b
Practice (reference=Physician practice)
Community health center	0.76	0.33	1.73	0.46
Hospital-based clinic	0.47	0.23	0.96	0.04b
Other	0.32	0.13	0.77	0.01b
LDL-C Screening for Cardiovascular Disease and Cholesterol Management (n=89)
Main Predictors
Professional Visibility	0.75	0.48	1.16	0.19
NP-Administration Relations	1.09	0.64	1.87	0.75
NP-Physician Relations	0.90	0.56	1.44	0.66
Independent Practice and Support	1.60	1.03	2.47	0.035b
Covariates
Female ratio	0.87	0.48	1.58	0.65
Panel ratio	0.61	0.45	0.82	0.002b
Practice (reference=Physician office)
Community health center	2.00	0.92	4.37	0.09
Hospital-based clinic	1.49	0.63	3.52	0.42
Other	2.64	0.89	7.87	0.07
Comprehensive Diabetes Care -HbA1c Testing (n=91)
Main Predictors
Professional Visibility	0.77	0.56	1.05	0.09
NP-Administration Relations	1.01	0.71	1.44	0.97
NP-Physician Relations	1.07	0.79	1.45	0.65
Independent Practice and Support	1.12	0.84	1.49	0.43
Covariates
Nonurban	0.75	0.51	1.11	0.15

^aonly covariates with p-value<0.20 from the bivariate analysis are included in the final multivariable fractional logistic regression models. All continuous variables were standardized with mean 0 and standard deviation 1.

^bsignificant at 0.05 level